Geography

Where the archives say it happened

Two licensed historical datasets of US shootings, mapped and tabulated with their own definitions attached. They disagree about what counts, they stopped collecting years ago, and neither one is a census of the country.

Not current coverage. The CNN school archive ends in 2018 and the Stanford mass-shootings archive ends in 2016. Nothing here describes what has happened since. An empty result for a recent date range means no archive covers it, not that no shooting occurred.

Sources, licences and archive health

State: archive. Historical archives; not current US shooting coverage.

CNN school shootings archive

Coverage 2009-01-08 to 2018-12-11 · not current coverage · Archived; no scheduled refresh

What this source counts: K–12 school-property incidents in which at least one person other than the shooter was shot; includes qualifying accidental discharges and BB-gun injuries, with the stated law-enforcement/security exception.

Source rows
180
Included
180
Flagged uncertain
0
Excluded by the source
0
Rows with no coordinate
3

Copyright (c) 2019 CNN. Licensed MIT. Pinned to commit 9cf80befac (2019-07-26), 27,619 bytes, SHA-256 b8c1447035f03eda…, checked 2026-09-13. No endorsement by the source is implied.

What this source says about its own limits
  • Historical selected incidents, not a current or exhaustive US census.
  • Coordinates are supplied by the source; point precision is unknown.
  • County and metropolitan-area assignments are unavailable.

Stanford Mass Shootings in America archive

Coverage 1966-08-01 to 2016-06-26 · not current coverage · Archived; no scheduled refresh

What this source counts: At least three shooting victims, excluding the shooter; excludes identifiably gang-, drug-, or organized-crime-related shootings. Included, uncertain, and excluded source flags are retained.

Source rows
335
Included
325
Flagged uncertain
6
Excluded by the source
4
Rows with no coordinate
0

Stanford Mass Shootings in America, courtesy of the Stanford Geospatial Center and Stanford Libraries. Licensed CC-BY-4.0. Pinned to commit 7025a75fdc (2018-03-26), 489,585 bytes, SHA-256 9d42ea9d72bc7280…, checked 2026-09-13. No endorsement by the source is implied.

What this source says about its own limits
  • Historical selected incidents, not a current or exhaustive US census.
  • Coordinates are supplied by the source; point precision is unknown.
  • County and metropolitan-area assignments are unavailable.
  • The source warns that changing online reporting creates historical ascertainment bias.
  • Native CaseIDs 156 and 168 are reused for different incidents; explicit disambiguation preserves all rows.

515 source rows across both archives reconcile to 501 incidents in this selection, of which 498 carry a coordinate and 3 do not. 4 cross-source overlaps were manually reviewed and merged.

Filter

The two definitions are different measurements, not two slices of one.
Inclusive. Archive coverage ends in 2018.

What this selection contains

Incidents matching
501
On the map
498
Table only, no coordinate
3
School definition
180
Mass definition
325
Date unknown
0

Showing all archived incidents. The two definition counts overlap and must not be added: 4 reviewed events appear under both. Uncertain records are excluded in this selection.

Map of 498 located incidents

Skip the map’s 498 points and go to the incident table

2016-06-26: Lyman, SC, Lyman, SC. mass.2016-06-12: Orlando, FL, Orlando, FL. mass.2016-06-11: Webster, MN, Webster, MN. mass.2016-06-07: Cape Coral, FL, Cape Coral, FL. mass.2016-05-31: Fort Wayne, IN, Fort Wayne, IN. mass.2016-05-29: Las Vegas, NV, Las Vegas, NV. mass.2016-05-29: Houston, TX, Houston, TX. mass.2016-05-25: New York City, NY, New York City, NY. mass.2016-05-21: Stockton, CA, Stockton, CA. mass.2016-05-18: Jackson, GA, Jackson, GA. mass.2016-05-17: Ravenel, SC, Ravenel, SC. mass.2016-05-15: Moultrie, GA, Moultrie, GA. mass.2016-05-14: Phoenix, AZ, Phoenix, AZ. mass.2016-05-12: Chicago, IL, Chicago, IL. mass.2016-05-11: Birmingham, AL, Birmingham, AL. mass.2016-05-11: Chicago, IL, Chicago, IL. mass.2016-05-08: Austin, TX, Austin, TX. mass.2016-05-06: Bethesda, MD, Bethesda, MD. mass.2016-05-06: Montgomery, AL, Montgomery, AL. mass.2016-05-06: Detroit, MI, Detroit, MI. mass.2016-05-05: Shreveport, LA, Shreveport, LA. mass.2016-05-05: Allapattah, FL, Allapattah, FL. mass.2016-05-04: Katy, TX, Katy, TX. mass.2016-05-03: Green Cove Springs, FL, Green Cove Springs, FL. mass.2016-05-01: Murfreesboro, TN, Murfreesboro, TN. mass.2016-04-29: Ferguson, MO, Ferguson, MO. mass.2016-04-26: Forestville, MD, Forestville, MD. mass.2016-04-25: Nashville, TN, Nashville, TN. mass.2016-04-24: Halifax, VA, Halifax, VA. mass.2016-04-23: Auburn, AL, Auburn, AL. mass.2016-04-22: Appling, GA, Appling, GA. mass.2016-04-21: Baltimore, MD, Baltimore, MD. mass.2016-04-19: Chicago, IL, Chicago, IL. mass.2016-04-19: Katy, TX, Katy, TX. mass.2016-04-19: Brooksville, AL, Brooksville, AL. mass.2016-04-18: Long Beach, CA, Long Beach, CA. mass.2016-04-09: Albuquerque, NM, Albuquerque, NM. mass.2016-04-09: Memphis, TN, Memphis, TN. mass.2016-04-07: Chicago, IL, Chicago, IL. mass.2016-04-01: Albuquerque, NM, Albuquerque, NM. mass.2016-03-26: Louisburg, NC, Louisburg, NC. mass.2016-03-25: Lawrenceburg, TN, Lawrenceburg, TN. mass.2016-03-25: Greenhill, AL, Greenhill, AL. mass.2016-03-21: Sherman, TX, Sherman, TX. mass.2016-03-21: Sherman, TX, Sherman, TX. mass.2016-03-20: Louisville, KY, Louisville, KY. mass.2016-03-20: Louisville, KY, Louisville, KY. mass.2016-03-19: Plantation, FL, Plantation, FL. mass.2016-03-19: Wetumpka, AL, Wetumpka, AL. mass.2016-03-19: Plantation, FL, Plantation, FL. mass.2016-03-15: Atlanta, GA, Atlanta, GA. mass.2016-03-13: Fort Myers, FL, Fort Myers, FL. mass.2016-03-12: Elberton, GA, Elberton, GA. mass.2016-03-11: Trenton, NJ, Trenton, NJ. mass.2016-03-11: Detroit, MI, Detroit, MI. mass.2016-03-09: Pittsburgh, PA, Pittsburgh, PA. mass.2016-03-09: Wilkinsburg, PA, Wilkinsburg, PA. mass.2016-03-07: Kansas City, KS, Kansas City, KS. mass.2016-03-07: Lafayette, LA, Lafayette, LA. mass.2016-03-07: Kansas City, KS, Kansas City, KS. mass.2016-03-06: Chelsea, MA, Chelsea, MA. mass.2016-03-06: Chelsea, MA, Chelsea, MA. mass.2016-03-06: Roswell, GA, Roswell, GA. mass.2016-03-05: Wichita, KS, Wichita, KS. mass.2016-02-28: Detroit, MI, Detroit, MI. mass.2016-02-28: Jurupa Valley, CA, Jurupa Valley, CA. mass.2016-02-27: Woodbridge, VA, Woodbridge, VA. mass.2016-02-26: Belfair, WA, Belfair, WA. mass.2016-02-25: Hesston, KS, Hesston, KS. mass.2016-02-25: Belfair, WA, Belfair, WA. mass.2016-02-23: Glendale, AZ, Glendale, AZ. mass.2016-02-23: Phoenix, AZ, Phoenix, AZ. mass.2016-02-21: Hazelwood, MO, Hazelwood, MO. mass.2016-02-21: Houston, TX, Houston, TX. mass.2016-02-20: Iuka, MS, Iuka, MS. mass.2016-02-20: Kalamazoo, MI, Kalamazoo, MI. mass.2016-02-20: Tampa, FL, Tampa, FL. mass.2016-02-20: Kalamazoo, MI, Kalamazoo, MI. mass.2016-02-19: Vallejo, CA, Vallejo, CA. mass.2016-02-07: Orlando, FL, Orlando, FL. mass.2016-02-07: Rochester, NY, Rochester, NY. mass.2016-02-06: Tampa, FL, Tampa, FL. mass.2016-02-06: Los Angeles, CA, Los Angeles, CA. mass.2016-02-06: Uvalde, TX, Uvalde, TX. mass.2016-01-31: New Orleans, LA, New Orleans, LA. mass.2016-01-30: Glendale, AZ, Glendale, AZ. mass.2016-01-29: Caroline, VA, Caroline, VA. mass.2016-01-27: Chesapeake, VA, Chesapeake, VA. mass.2016-01-27: Chesapeake, VA, Chesapeake, VA. mass.2016-01-25: Perris, CA, Perris, CA. mass.2016-01-23: Crestview, FL, Crestview, FL. mass.2016-01-23: Los Angeles, CA, Los Angeles, CA. mass.2016-01-17: Ware Neck, VA, Ware Neck, VA. mass.2016-01-07: Memphis, TN, Memphis, TN. mass.2015-12-06: Omaha, NE, Omaha, NE. mass.2015-12-02: San Bernardino, CA, San Bernardino, CA. mass.2015-11-27: Colorado Springs, CO, Colorado Springs, CO. mass.2015-11-23: Columbus, OH, Columbus, OH. mass.2015-11-23: Minneapolis, MN, Minneapolis, MN. mass.2015-11-15: Tennessee Colony, TX, Tennessee Colony, TX. mass.2015-11-13: Jacksonville, FL, Jacksonville, FL. mass.2015-11-07: Waycross, GA, Waycross, GA. mass.2015-11-04: Oakland, ME, Oakland, ME. mass.2015-10-31: Colorado Springs, CO, Colorado Springs, CO. mass.2015-10-21: Township of Colerain, OH, Township of Colerain, OH. mass.2015-10-09: Flagstaff, AZ, Flagstaff, AZ. mass.2015-10-01: Roseburg, OR, Roseburg, OR. mass.2015-10-01: Inglis, FL, Inglis, FL. mass.2015-09-27: Greenville, GA, Greenville, GA. mass.2015-09-17: Platte, SD, Platte, SD. mass.2015-09-10: Clearbrook, MN, Clearbrook, MN. mass.2015-08-29: Bristol, TN, Bristol, TN. mass.2015-08-26: Roanoke, VA, Roanoke, VA. mass.2015-08-08: Houston, TX, Houston, TX. mass.2015-07-23: Lafayette, LA, Lafayette, LA. mass.2015-07-22: Suwanee, GA, Suwanee, GA. mass.2015-07-16: Chattanooga, TN, Chattanooga, TN. mass.2015-07-12: River Forest, IL, River Forest, IL. mass.2015-06-20: Morven, NC, Morven, NC. mass.2015-06-17: Charleston, SC, Charleston, SC. mass.2015-06-16: Miami Gardens, FL, Miami Gardens, FL. mass.2015-06-07: Deer Lodge, MT, Deer Lodge, MT. mass.2015-05-31: Cleveland, OH, Cleveland, OH. mass.2015-05-31: Conyers, GA, Conyers, GA. mass.2015-05-25: Decatur, IL, Decatur, IL. mass.2015-05-12: Tucson, AZ, Tucson, AZ. mass.2015-05-10: Newark, NJ, Newark, NJ. mass.2015-05-03: Menasha, WI, Menasha, WI. mass.2015-05-01: Milwaukee, WI, Milwaukee, WI. mass.2015-04-25: Gates, NY, Gates, NY. mass.2015-04-21: Killeen, TX, Killeen, TX. mass.2015-04-16: Phoenix, AZ, Phoenix, AZ. mass.2015-04-07: Rome, GA, Rome, GA. mass.2015-04-03: Daytona Beach, FL, Daytona Beach, FL. mass.2015-03-30: Tulsa, OK, Tulsa, OK. mass.2015-03-28: Panama City Beach, FL, Panama City Beach, FL. mass.2015-03-19: Little Water, NM, Little Water, NM. mass.2015-03-15: Cottonwood, AL, Cottonwood, AL. mass.2015-03-13: Brookhaven, MS, Brookhaven, MS. mass.2015-02-28: Tarboro, NC, Tarboro, NC. mass.2015-02-27: Birmingham, AL, Birmingham, AL. mass.2015-02-26: Tyrone, MO, Tyrone, MO. mass.2015-02-22: Clarkesville, GA, Clarkesville, GA. mass.2015-02-22: Killeen, TX, Killeen, TX. mass.2015-02-10: Chapel Hill, NC, Chapel Hill, NC. mass.2015-02-07: Monroeville, PA, Monroeville, PA. mass.2015-02-07: Douglasville, GA, Douglasville, GA. mass.2015-02-04: King, NC, King, NC. mass.2015-02-01: Syracuse, NY, Syracuse, NY. mass.2015-01-28: LaGrange, GA, LaGrange, GA. mass.2015-01-24: New York City, NY, New York City, NY. mass.2015-01-10: Moscow, ID, Moscow, ID. mass.2015-01-01: Memphis, TN, Memphis, TN. mass.2014-12-15: Pennsburg, Souderton, Lansdale, Harleysville, PA, Pennsburg, Souderton, Lansdale, Harleysville, PA. mass.2014-12-01: Morgantown, WV, Morgantown, WV. mass.2014-11-19: Tallahassee, FL, Tallahassee, FL. mass.2014-08-08: Albuquerque, NM, Albuquerque, NM. mass.2014-06-29: New Orleans, LA, New Orleans, LA. mass.2014-06-08: Las Vegas, NV, Las Vegas, NV. mass.2014-06-05: Seattle, WA, Seattle, WA. mass.2014-05-23: Isla Vista, CA, Isla Vista, CA. mass.2014-04-29: Kennesaw, GA, Kennesaw, GA. mass.2014-04-02: Killeen, TX, Killeen, TX. mass.2014-03-23: San Francisco, CA, San Francisco, CA. mass.2014-02-20: Alturas, CA, Alturas, CA. mass.2013-12-28: Montgomery, AL, Montgomery, AL. mass.2013-11-01: Los Angeles, CA, Los Angeles, CA. mass.2013-09-16: Washington, DC, Washington, DC. mass.2013-08-14: Oklahoma City, OK, Oklahoma City, OK. mass.2013-08-07: Dallas, TX, Dallas, TX. mass.2013-08-05: Salisbury, PA, Salisbury, PA. mass.2013-07-26: Hialeah, FL, Hialeah, FL. mass.2013-06-07: Santa Monica, CA, Santa Monica, CA. mass.2013-04-24: Manchester, IL, Manchester, IL. mass.2013-04-21: Federal Way, WA, Federal Way, WA. mass.2013-03-13: Mohawk, NY, Mohawk, NY. mass.2013-02-19: Ladera Ranch, CA, Ladera Ranch, CA. mass.2013-02-03: Irvine, CA, Irvine, CA. mass.2013-01-30: Phoenix, AZ, Phoenix, AZ. mass.2013-01-19: Albuquerque, NM, Albuquerque, NM. mass.2012-12-11: Happy Valley, OR, Happy Valley, OR. mass.2012-10-21: Brookfield, WI, Brookfield, WI. mass.2012-09-28: Miami, FL, Miami, FL. mass.2012-09-27: Minneapolis, MN, Minneapolis, MN. mass.2012-08-05: Oak Creek, WI, Oak Creek, WI. mass.2012-07-20: Denver, CO, Denver, CO. mass.2012-06-09: Auburn, AL, Auburn, AL. mass.2012-05-30: Seattle, WA, Seattle, WA. mass.2012-04-06: Tulsa, OK, Tulsa, OK. mass.2012-04-02: Oakland, CA, Oakland, CA. mass.2012-02-22: Norcross, GA, Norcross, GA. mass.2012-01-29: Birmingham, AL, Birmingham, AL. mass.2011-10-12: Seal Beach, CA, Seal Beach, CA. mass.2011-09-06: Carson City, NV, Carson City, NV. mass.2011-07-07: Grand Rapids, MI, Grand Rapids, MI. mass.2011-04-06: Opelika, AL, Opelika, AL. mass.2011-02-06: Youngstown, OH, Youngstown, OH. mass.2011-01-08: Tucson, AZ, Tucson, AZ. mass.2010-08-03: Manchester, CT, Manchester, CT. mass.2010-02-12: Huntsville, AL, Huntsville, AL. mass.2009-11-29: Lakewood, WA, Lakewood, WA. mass.2009-11-05: Fort Hood, TX, Fort Hood, TX. mass.2009-04-03: Binghamton, NY, Binghamton, NY. mass.2009-03-29: Santa Clara, CA, Santa Clara, CA. mass.2009-03-29: Carthage, NC, Carthage, NC. mass.2009-03-10: Geneva, AL, Geneva, AL. mass.2008-12-24: Covina, CA, Covina, CA. mass.2008-10-26: Conway, AR, Conway, AR. mass.2008-07-24: Phoenix, AZ, Phoenix, AZ. mass.2008-06-25: Henderson, KY, Henderson, KY. mass.2008-02-14: DeKalb, IL, DeKalb, IL. mass.2008-02-07: Kirkwood, MO, Kirkwood, MO. mass.2007-12-24: Carnation, WA, Carnation, WA. mass.2007-12-11: Las Vegas, NV, Las Vegas, NV. mass.2007-12-09: Arvada, CO, Arvada, CO. mass.2007-12-05: Omaha, NE, Omaha, NE. mass.2007-10-25: Saginaw, MI, Saginaw, MI. mass.2007-10-11: Cleveland, OH, Cleveland, OH. mass.2007-10-07: Crandon, WI, Crandon, WI. mass.2007-04-16: Blacksburg, VA, Blacksburg, VA. mass.2007-04-10: Gresham, OR, Gresham, OR. mass.2007-02-12: Salt Lake City, UT, Salt Lake City, UT. mass.2006-10-02: Lancaster, PA, Lancaster, PA. mass.2006-09-17: Pittsburgh, PA, Pittsburgh, PA. mass.2006-08-30: Hillsborough, NC, Hillsborough, NC. mass.2006-08-24: Essex Junction, VT, Essex Junction, VT. mass.2006-03-25: Seattle, WA, Seattle, WA. mass.2006-01-30: Goleta, CA, Goleta, CA. mass.2005-03-21: Red Lake, MN, Red Lake, MN. mass.2005-03-12: Brookfield, WI, Brookfield, WI. mass.2005-02-24: Tyler, TX, Tyler, TX. mass.2004-12-08: Columbus, OH, Columbus, OH. mass.2004-11-21: Birchwood, WI, Birchwood, WI. mass.2003-08-27: Chicago, IL, Chicago, IL. mass.2003-07-08: Meridian, MS, Meridian, MS. mass.2003-05-09: Cleveland, OH, Cleveland, OH. mass.2002-10-28: Tucson, AZ, Tucson, AZ. mass.2002-01-16: Grundy, VA, Grundy, VA. mass.2001-03-05: San Diego, CA, San Diego, CA. mass.2001-02-05: Melrose Park, IL, Melrose Park, IL. mass.2000-12-26: Boston, MA, Boston, MA. mass.1999-12-30: Tampa, FL, Tampa, FL. mass.1999-12-06: Fort Gibson, OK, Fort Gibson, OK. mass.1999-11-02: Honolulu, HI, Honolulu, HI. mass.1999-09-15: Fort Worth, TX, Fort Worth, TX. mass.1999-07-29: Atlanta, GA, Atlanta, GA. mass.1999-05-20: Conyers, GA, Conyers, GA. mass.1999-04-20: Littleton, CO, Littleton, CO. mass.1998-10-06: Riverside, CA, Riverside, CA. mass.1998-05-21: Springfield, OR, Springfield, OR. mass.1998-04-24: Edinboro, PA, Edinboro, PA. mass.1998-03-24: Jonesboro, AR, Jonesboro, AR. mass.1998-03-06: Newington, CT, Newington, CT. mass.1997-12-19: Milwaukee, WI, Milwaukee, WI. mass.1997-12-18: Orange, CA, Orange, CA. mass.1997-12-01: West Paducah, KY, West Paducah, KY. mass.1997-10-01: Pearl, MS, Pearl, MS. mass.1997-09-15: Aiken, SC, Aiken, SC. mass.1997-02-19: Bethel, AK, Bethel, AK. mass.1996-08-15: San Diego, CA, San Diego, CA. mass.1996-02-09: Fort Lauderdale, FL, Fort Lauderdale, FL. mass.1996-02-02: Moses Lake, WA, Moses Lake, WA. mass.1995-11-15: Lynnville, TN, Lynnville, TN. mass.1995-04-03: Corpus Christi, TX, Corpus Christi, TX. mass.1995-03-21: Montclair, NJ, Montclair, NJ. mass.1995-01-26: Chapel Hill, NC, Chapel Hill, NC. mass.1994-12-30: Brookline, MA, Brookline, MA. mass.1994-11-07: Wickliffe, OH, Wickliffe, OH. mass.1994-06-20: Fairchild Air Force Base, WA, Fairchild Air Force Base, WA. mass.1994-05-26: Union, KY, Union, KY. mass.1993-12-16: Chelsea, MI, Chelsea, MI. mass.1993-12-14: Aurora, CO, Aurora, CO. mass.1993-12-07: Garden City, NY, Garden City, NY. mass.1993-09-17: Sheridan, WY, Sheridan, WY. mass.1993-08-06: Fayetteville, NC, Fayetteville, NC. mass.1993-07-08: Ogden, UT, Ogden, UT. mass.1993-07-01: San Francisco, CA, San Francisco, CA. mass.1993-05-06: Dearborn, MI, Dearborn, MI. mass.1993-05-06: Dana Point, CA, Dana Point, CA. mass.1992-12-14: Great Barrington, MA, Great Barrington, MA. mass.1992-10-15: Watkins Glen, NY, Watkins Glen, NY. mass.1992-09-11: Amarillo, TX, Amarillo, TX. mass.1992-05-01: Olivehurst, CA, Olivehurst, CA. mass.1991-11-14: Royal Oak, MI, Royal Oak, MI. mass.1991-11-01: Iowa City, IA, Iowa City, IA. mass.1991-10-16: Killeen, TX, Killeen, TX. mass.1991-10-10: Ridgewood, NJ, Ridgewood, NJ. mass.1991-08-09: Phoenix, AZ, Phoenix, AZ. mass.1990-06-17: Jacksonville, FL, Jacksonville, FL. mass.1989-09-14: Louisville, KY, Louisville, KY. mass.1989-08-10: Escondido, CA, Escondido, CA. mass.1989-01-17: Stockton, CA, Stockton, CA. mass.1988-12-14: New Orleans, LA, New Orleans, LA. mass.1988-09-26: Greenwood, SC, Greenwood, SC. mass.1988-09-22: Chicago, IL, Chicago, IL. mass.1988-05-20: Winnetka, IL, Winnetka, IL. mass.1988-02-16: Sunnyvale, CA, Sunnyvale, CA. mass.1988-02-11: Pinellas Park, FL, Pinellas Park, FL. mass.1987-04-23: Palm Bay, FL, Palm Bay, FL. mass.1986-12-04: Lewistown, MT, Lewistown, MT. mass.1986-08-20: Edmond, OK, Edmond, OK. mass.1986-08-12: Brooklyn, NY, Brooklyn, NY. mass.1985-03-06: Atlanta, GA, Atlanta, GA. mass.1985-01-21: Goddard, KS, Goddard, KS. mass.1984-07-18: San Ysidro, CA, San Ysidro, CA. mass.1984-06-29: Dallas, TX, Dallas, TX. mass.1984-02-24: Los Angeles, CA, Los Angeles, CA. mass.1983-08-19: Johnston, SC, Johnston, SC. mass.1983-02-18: Seattle, WA, Seattle, WA. mass.1982-08-20: Miami, FL, Miami, FL. mass.1982-03-19: Las Vegas, NV, Las Vegas, NV. mass.1979-10-06: Columbia, SC, Columbia, SC. mass.1979-01-29: San Diego, CA, San Diego, CA. mass.1976-07-12: Fullerton, CA, Fullerton, CA. mass.1976-02-19: Los Angeles, CA, Los Angeles, CA. mass.1974-12-30: Olean, NY, Olean, NY. mass.1974-01-17: Chicago, IL, Chicago, IL. mass.1972-12-31: New Orleans, LA, New Orleans, LA. mass.1971-11-11: Spokane, WA, Spokane, WA. mass.1966-11-12: Mesa, AZ, Mesa, AZ. mass.1966-08-01: Austin, TX, Austin, TX. mass.2018-12-11: Cawood Elementary School, Cawood, KY. school.2018-11-20: Simonsdale Elementary School, Portsmouth, VA. school.2018-10-29: Butler High School, Matthews, NC. school.2018-10-07: Varina High School, Henrico, VA. school.2018-10-03: Denali Elementary School, Anchorage, AK. school.2018-09-27: Hebron High School, Carrollton, TX. school.2018-09-11: Canyon Springs High School, Las Vegas, NV. school.2018-08-24: Raines High School, Jacksonville, FL. school.2018-08-17: Palm Beach Central High School, Wellington, FL. school.2018-08-11: Antioch High School, Antioch, TN. school.2018-08-09: Lakeside Middle School, Millville, NJ. school.2018-08-03: Edgewood High School, Edgewood, MD. school.2018-06-21: Skyline High School, Dallas, TX. school.2018-05-25: Noblesville West Middle School, Noblesville, IN. school.2018-05-18: Mount Zion High School, Jonesboro, GA. school.2018-05-18: Santa Fe High School, Santa Fe, TX. school.2018-05-11: Highland High School, Palmdale, CA. school.2018-04-20: Forest High School, Ocala, FL. school.2018-04-12: Raytown South Middle School, Raytown, MO. school.2018-04-09: Gloversville Middle School, Gloversville, NY. school.2018-03-20: Great Mills High School, Great Mills, MD. school.2018-03-07: Huffman High School, Birmingham, AL. school.2018-02-14: Marjory Stoneman Douglas High School, Parkland, FL. school.2018-02-09: Pearl-Cohn Entertainment Magnet High School, Nashville, TN. school.2018-02-05: Oxon Hill High School, Oxon Hill, MD. school.2018-02-01: Sal Castro Middle School, Los Angeles, CA. school.2018-01-31: Lincoln High School, Philadelphia, PA. school.2018-01-23: Marshall County High School, Benton, KY. school.2018-01-22: Italy High School, Italy, TX. school.2017-12-19: Beecher High School, Mount Morris, MI. school.2017-12-11: Roosevelt Elementary, Hanford, CA. school.2017-12-08: Champaign Central High School, Champaign, IL. school.2017-12-07: Aztec High School, Aztec, NM. school.2017-11-14: Rancho Tehama Elementary School, Corning, CA. school.2017-11-09: Banneker High School, Atlanta, GA. school.2017-11-03: Pattengill Academy, Lansing, MI. school.2017-10-19: Rocky Mount High School, Rocky Mount, NC. school.2017-09-28: Southern Middle School, Lexington, KY. school.2017-09-20: Callaway High School, Jackson, MS. school.2017-09-20: Mattoon High School, Mattoon, IL. school.2017-09-13: Freeman High School, Rockford, WA. school.2017-09-08: North Little Rock High School, North Little Rock, AR. school.2017-06-16: Warren Elementary School, Chicago, IL. school.2017-05-26: McLain High School, Tulsa, OK. school.2017-05-15: Moss Bluff Elementary, Lake Charles (Moss Bluff), LA. school.2017-04-15: Booker T. Washington High School, Tulsa, OK. school.2017-04-10: North Park Elementary School, San Bernardino, CA. school.2017-03-28: Linton Middle School, Pittsburgh (Penn Hills), PA. school.2017-03-21: King City High School, King City, CA. school.2017-03-16: Lee High School, Montgomery, AL. school.2017-01-30: Palmer Pillans Middle School, Mobile, AL. school.2017-01-27: South Aiken High School, Aiken, SC. school.2017-01-27: Scullen Middle School, Naperville, IL. school.2017-01-25: Mark Twain Elementary School, Detroit, MI. school.2017-01-20: West Liberty-Salem High School, West Liberty, OH. school.2016-12-09: Bayless High School, Saint Louis, MO. school.2016-11-09: Savannah High School, Savannah, GA. school.2016-11-07: Houston Can Academy, Houston, TX. school.2016-10-25: Union Middle School, Sandy, UT. school.2016-10-19: Mott Hall Charter School, Bronx, NY. school.2016-10-18: June Jordan School for Equity, San Francisco, CA. school.2016-10-15: Benjamin E. Mays High School, Atlanta, GA. school.2016-10-13: Linden-McKinley STEM Academy, Columbus, OH. school.2016-10-11: Vigor High School, Prichard, AL. school.2016-09-28: Townville Elementary, Townville, SC. school.2016-09-27: Elder High School, Cincinnati, OH. school.2016-09-26: T.A. Wilson Academy, Jackson, MI. school.2016-09-08: Kearns High School, Salt Lake City (Kearns), UT. school.2016-09-08: Alpine High School, Alpine, TX. school.2016-09-02: McLain High School, Tulsa, OK. school.2016-08-17: Wedgewood Middle School, Columbus, OH. school.2016-07-25: Ava High School, Ava, MO. school.2016-07-21: Chaffey High School, Ontario, CA. school.2016-06-30: Sandusky High School, Sandusky, OH. school.2016-06-30: Woodrow Wilson Junior High School, Hanford, CA. school.2016-05-24: Technical High School, Saint Cloud, MN. school.2016-05-21: Thompson K-8 International Academy, Southfield, MI. school.2016-05-15: Augusta High School, Augusta, KS. school.2016-05-13: Southside High School, Greenville, SC. school.2016-05-05: High Point High School, Beltsville, MD. school.2016-05-04: East High School, Pueblo, CO. school.2016-03-15: Huffman High School, Birmingham, AL. school.2016-02-29: Madison Jr/Sr High School, Middletown, OH. school.2016-02-23: Faribault Middle School, Faribault, MN. school.2016-02-12: Independence High School, Glendale, AZ. school.2016-02-09: Muskegon Heights High School, Muskegon (Muskegon Heights), MI. school.2016-01-29: Whites Creek High School, Whites Creek, TN. school.2016-01-22: Lawrence Central High School, Indianapolis, IN. school.2016-01-13: Harmony Grove High School, Camden, AR. school.2015-11-11: Sulphur Rock STEM Magnet elementary school, Sulphur Rock, AR. school.2015-11-06: Excel Southwest High School, Chicago, IL. school.2015-09-30: Harrisburg High School, Harrisburg, SD. school.2015-09-22: Central Elementary School, Statesville, NC. school.2015-09-11: Northside High School, Lafayette, LA. school.2015-09-04: Dulaney High School, Lutherville Timonium, MD. school.2015-08-25: W.S. Hornsby K-8 School, Augusta, GA. school.2015-07-24: Elolf Elementary School, Converse, TX. school.2015-03-05: Judson High School, Converse, TX. school.2015-02-15: Tenaya Middle School, Merced, CA. school.2015-02-04: Frederick High School, Frederick, MD. school.2015-01-27: Norris Middle School, Omaha, NE. school.2015-01-16: Vanguard High School, Ocala, FL. school.2015-01-16: Williamson High School, Mobile, AL. school.2015-01-15: Kinston High School, Kinston, NC. school.2015-01-15: Wisconsin Lutheran High School, Milwaukee, WI. school.2014-11-20: Miami Carol City High School, Miami Gardens, FL. school.2014-10-03: Langston Hughes High School, Fairburn, GA. school.2014-09-30: Albemarle High School, Albermarle, NC. school.2014-09-30: Fern Creek High School, Louisville, KY. school.2014-09-09: Stellar Leadership Academy, Miami, FL. school.2014-06-23: Kelly High School, Benton, MO. school.2014-06-10: Reynolds High School, Troutdale, OR. school.2014-05-21: Clarke Street Elementary School, Milwaukee, WI. school.2014-05-03: Horizon Elementary School, Everett, WA. school.2014-04-24: Paul Robeson High School, Chicago, IL. school.2014-04-21: St. Mary Catholic School, Griffith, IN. school.2014-04-11: East English Village Preparatory Academy, Detroit, MI. school.2014-03-07: Madison Parish High School, Tallulah, LA. school.2014-02-20: Raytown Success Academy, Raytown, MO. school.2014-02-10: Salisbury High School, Salisbury, NC. school.2014-01-31: North High School, Des Moines, IA. school.2014-01-17: Valley Charter High School, Philadelphia, PA. school.2014-01-14: Berrendo Middle School, Roswell, NM. school.2014-01-09: Liberty Technology Magnet High School, Jackson, TN. school.2013-12-19: Edison High School, Fresno, CA. school.2013-12-13: Arapahoe High School, Centennial, CO. school.2013-12-04: West Orange High School, Winter Garden, FL. school.2013-11-03: Stephenson High School, Stone Mountain, GA. school.2013-10-04: Agape Christian Academy, Pine Hills, FL. school.2013-08-23: North Panola High, Sardis, MS. school.2013-06-20: Alexander W. Dreyfoos School of the Arts, West Palm Beach, FL. school.2013-05-24: Redland Middle School, Homestead, FL. school.2013-02-13: Hillside Elementary School, San Leandro, CA. school.2013-01-31: Price Middle School, Atlanta, GA. school.2013-01-10: Taft High School, Taft, CA. school.2012-08-27: Perry Hall High School, Baltimore, MD. school.2012-05-25: Mary Scroggs Elementary School, Chapel Hill, NC. school.2012-03-06: Episcopal School of Jacksonville, Jacksonville, FL. school.2012-02-22: Armin Jahr Elementary, Bremerton, WA. school.2012-01-10: North Forest High School, Houston, TX. school.2011-12-09: Harwell Middle School, Edinburg, TX. school.2011-10-24: Cape Fear High School, Fayetteville, NC. school.2011-08-26: Chandler Park Academy, Harper Woods, MI. school.2011-05-27: Horizon Elementary School, Everett, WA. school.2011-05-23: Highlands Intermediate School, Pearl City, HI. school.2011-04-19: Ross Elementary School, Houston, TX. school.2011-04-13: Sheeler Charter High School, Apopka, FL. school.2011-03-31: Worthing High School, Houston, TX. school.2011-03-25: Martinsville West Middle School, Martinsville, IN. school.2011-02-02: Louisiana Schnell Elementary School, Placerville, CA. school.2011-01-18: Gardena High School, Gardena, CA. school.2011-01-05: Millard South High School, Omaha, NE. school.2010-10-08: Kelly Elementary School, Carlsbad, CA. school.2010-10-01: Alisal High School, Salinas, CA. school.2010-05-18: South Gate High School, South Gate, CA. school.2010-02-26: Birney Elementary School, Tacoma, WA. school.2010-02-23: Deer Creek Middle School, Littleton, CO. school.2010-02-10: Inskip Elementary School, Knoxville, TN. school.2010-02-05: Discovery Middle School, Madison, AL. school.2010-01-20: Livingston High School, Livingston, AL. school.2009-12-11: Booker T. Washington High School, Shreveport, LA. school.2009-12-02: Brockton High School, Brockton, MA. school.2009-10-30: Wilson High School, Long Beach, CA. school.2009-10-08: Mattituck High School, Mattituck, NY. school.2009-06-24: Aplington-Parkersburg High School, Parkersburg, IA. school.2009-06-09: Leestown Middle School, Lexington, KY. school.2009-05-13: Chimborazo Elementary School, Richmond, VA. school.2009-03-06: Westover High School, Fayetteville, NC. school.2009-02-17: Central High School, Detroit, MI. school.2009-02-11: Zebulon Middle School, Zebulon, NC. school.2009-01-23: Cahokia High School, Cahokia, IL. school.2009-01-09: Dunbar Vocational Career Academy, Chicago, IL. school.2009-01-08: William Penn High School, New Castle, DE. school.2014-10-24: Marysville-Pilchuck High School, Marysville, WA. school and mass.2013-10-21: Sparks Middle School, Sparks, NV. school and mass.2012-12-14: Sandy Hook Elementary, Newtown, CT. school and mass.2012-02-27: Chardon High School, Chardon, OH. school and mass.
  • School — CNN archive, 2009 to 2018. K–12 school property, at least one person other than the shooter shot.
  • Mass — Stanford archive, 1966 to 2016. At least three shooting victims excluding the shooter.
  • In both archives — one of the four manually reviewed overlaps. The two definitions are kept separate; the counts are not added.
  • Hollow marker — the source flagged the record uncertain. Shown only while “include uncertain records” is on.

498 mapped points, every incident this filter matched that carries a coordinate — not the thirty rows below. 3 more incidents have no usable coordinate and are in the table only. Dates run from 1966-08-01 to 2018-12-11.

Albers equal-area conic projection of the coordinates the archives supply, scaled to fit the current selection. This map displays incident points, without boundary outlines or shaded regions. The pinned Census county and metro polygons are used separately to derive the approximate place labels below; they are modern boundaries, not event-date boundaries. Point precision is unknown: these are the source files’ own coordinates, not verified street addresses, and markers overlap where incidents are close together. Drawn extent 21.3°N to 61.2°N, 161.8°W to 69.7°W.

Selecting a point filters the table to that incident’s date and state and jumps to its row.

Counts by place

Counts of archived incidents per state, largest first. These are counts, not rates, and not a ranking of risk: the archives select for particular kinds of event and stop at different years.

  1. California (CA)54
  2. Florida (FL)39
  3. Texas (TX)34
  4. Georgia (GA)27
  5. Alabama (AL)22
  6. Illinois (IL)21
  7. Michigan (MI)19
  8. North Carolina (NC)19
  9. Washington (WA)18
  10. Ohio (OH)15
  11. Arizona (AZ)14
  12. New York (NY)14
  13. Tennessee (TN)14
  14. Pennsylvania (PA)12
  15. Virginia (VA)12
  16. Kentucky (KY)11
  17. Louisiana (LA)11
  18. Maryland (MD)10
  19. Missouri (MO)10
  20. South Carolina (SC)10
  21. Wisconsin (WI)10
  22. Colorado (CO)9
  23. Oklahoma (OK)8
  24. Minnesota (MN)7
  25. New Mexico (NM)7
  26. Nevada (NV)7
  27. Kansas (KS)6
  28. Massachusetts (MA)6
  29. Mississippi (MS)6
  30. Arkansas (AR)5
  31. Indiana (IN)5
  32. New Jersey (NJ)5
  33. Oregon (OR)5
  34. Nebraska (NE)4
  35. Utah (UT)4
  36. Connecticut (CT)3
  37. Iowa (IA)3
  38. Alaska (AK)2
  39. Hawaii (HI)2
  40. Montana (MT)2
  41. South Dakota (SD)2
  42. District of Columbia (DC)1
  43. Delaware (DE)1
  44. Idaho (ID)1
  45. Maine (ME)1
  46. Vermont (VT)1
  47. West Virginia (WV)1
  48. Wyoming (WY)1

County and metropolitan area

Approximate, and not the boundaries of the day. January 1, 2026 boundaries applied to historical incident points; not event-date boundaries.

Each label is produced by testing the source archive’s own coordinate against a pinned boundary polygon. The coordinate’s precision is unknown and is not a verified street address, the polygons are generalized to 0.001 degrees, and a point within 0.002 degrees of an edge is left unknown rather than assigned. An incident’s county label can therefore name an area that did not exist under that name on the date of the incident.

Derived from U.S. Census Bureau TIGER geographic data; not endorsed by the Census Bureau. Boundaries: U.S. Census Bureau TIGERweb, 2026-01-01 vintage, retrieved 2026-09-13. US federal government work (17 USC 105).

Which boundary layers, and how they were checked

Method ray_cast_polygon_holes_v1; event-date boundaries: no. Licence: US federal government work (17 USC 105) (reference). Projection version 2c96e789c4fc6df1….

Counties and county equivalents

493 of 501 incidents in this selection carry a derived label, across 279 areas. These counts cover the whole selection, not the table page below.

  1. Cook County, IL (17031)14
  2. Los Angeles County, CA (06037)13
  3. Maricopa County, AZ (04013)10
  4. Fulton County, GA (13121)8
  5. Miami-Dade County, FL (12086)8
  6. Wayne County, MI (26163)8
  7. Harris County, TX (48201)7
  8. King County, WA (53033)6
  9. Orange County, CA (06059)6
  10. San Diego County, CA (06073)6
Show the remaining 269 areas
  1. Allegheny County, PA (42003)5
  2. Clark County, NV (32003)5
  3. Jefferson County, AL (01073)5
  4. Milwaukee County, WI (55079)5
  5. Orange County, FL (12095)5
  6. Tulsa County, OK (40143)5
  7. Bell County, TX (48027)4
  8. Bernalillo County, NM (35001)4
  9. Broward County, FL (12011)4
  10. Davidson County, TN (47037)4
  11. Douglas County, NE (31055)4
  12. Duval County, FL (12031)4
  13. Franklin County, OH (39049)4
  14. Jefferson County, KY (21111)4
  15. Orange County, NC (37135)4
  16. Orleans Parish, LA (22071)4
  17. St. Louis County, MO (29189)4
  18. Arapahoe County, CO (08005)3
  19. Cumberland County, NC (37051)3
  20. Cuyahoga County, OH (39035)3
  21. Dallas County, TX (48113)3
  22. Hillsborough County, FL (12057)3
  23. Lafayette Parish, LA (22055)3
  24. Lee County, AL (01081)3
  25. Madison County, AL (01089)3
  26. Mobile County, AL (01097)3
  27. Montgomery County, AL (01101)3
  28. Pima County, AZ (04019)3
  29. Prince George's County, MD (24033)3
  30. Riverside County, CA (06065)3
  31. Salt Lake County, UT (49035)3
  32. San Bernardino County, CA (06071)3
  33. San Francisco County, CA (06075)3
  34. Shelby County, TN (47157)3
  35. Snohomish County, WA (53061)3
  36. Spokane County, WA (53063)3
  37. Suffolk County, MA (25025)3
  38. Aiken County, SC (45003)2
  39. Alameda County, CA (06001)2
  40. Baltimore County, MD (24005)2
  41. Bexar County, TX (48029)2
  42. Caddo Parish, LA (22017)2
  43. Capitol Planning Region, CT (09110)2
  44. Charleston County, SC (45019)2
  45. El Paso County, CO (08041)2
  46. Essex County, NJ (34013)2
  47. Fayette County, KY (21067)2
  48. Grayson County, TX (48181)2
  49. Gwinnett County, GA (13135)2
  50. Hamilton County, OH (39061)2
  51. Hennepin County, MN (27053)2
  52. Honolulu County, HI (15003)2
  53. Jackson County, MO (29095)2
  54. Jefferson County, CO (08059)2
  55. Kalamazoo County, MI (26077)2
  56. Kings County, CA (06031)2
  57. Kings County, NY (36047)2
  58. Lee County, FL (12071)2
  59. Marion County, FL (12083)2
  60. Mason County, WA (53045)2
  61. Monroe County, NY (36055)2
  62. Monterey County, CA (06053)2
  63. Multnomah County, OR (41051)2
  64. Oakland County, MI (26125)2
  65. Oklahoma County, OK (40109)2
  66. Palm Beach County, FL (12099)2
  67. Philadelphia County, PA (42101)2
  68. Pierce County, WA (53053)2
  69. Rice County, MN (27131)2
  70. Rockdale County, GA (13247)2
  71. San Joaquin County, CA (06077)2
  72. San Juan County, NM (35045)2
  73. Santa Barbara County, CA (06083)2
  74. Santa Clara County, CA (06085)2
  75. Sedgwick County, KS (20173)2
  76. Travis County, TX (48453)2
  77. Waukesha County, WI (55133)2
  78. Wyandotte County, KS (20209)2
  79. Allen County, IN (18003)1
  80. Anchorage Municipality, AK (02020)1
  81. Anderson County, TX (48001)1
  82. Anson County, NC (37007)1
  83. Baltimore city, MD (24510)1
  84. Bay County, FL (12005)1
  85. Beltrami County, MN (27007)1
  86. Bergen County, NJ (34003)1
  87. Berkshire County, MA (25003)1
  88. Bethel Census Area, AK (02050)1
  89. Blount County, AL (01009)1
  90. Boone County, KY (21015)1
  91. Brevard County, FL (12009)1
  92. Brewster County, TX (48043)1
  93. Bronx County, NY (36005)1
  94. Broome County, NY (36007)1
  95. Buchanan County, VA (51027)1
  96. Butler County, IA (19023)1
  97. Butler County, KS (20015)1
  98. Butler County, OH (39017)1
  99. Butts County, GA (13035)1
  100. Calcasieu Parish, LA (22019)1
  101. Caroline County, VA (51033)1
  102. Carson City, NV (32510)1
  103. Cattaraugus County, NY (36009)1
  104. Champaign County, IL (17019)1
  105. Champaign County, OH (39021)1
  106. Charles Mix County, SD (46023)1
  107. Chatham County, GA (13051)1
  108. Chaves County, NM (35005)1
  109. Chesapeake city, VA (51550)1
  110. Chittenden County, VT (50007)1
  111. Clackamas County, OR (41005)1
  112. Clay County, FL (12019)1
  113. Clayton County, GA (13063)1
  114. Clearwater County, MN (27029)1
  115. Cobb County, GA (13067)1
  116. Coconino County, AZ (04005)1
  117. Coles County, IL (17029)1
  118. Colquitt County, GA (13071)1
  119. Columbia County, GA (13073)1
  120. Coryell County, TX (48099)1
  121. Craighead County, AR (05031)1
  122. Cumberland County, NJ (34011)1
  123. DeKalb County, GA (13089)1
  124. DeKalb County, IL (17037)1
  125. Denton County, TX (48121)1
  126. Denver County, CO (08031)1
  127. District of Columbia, DC (11001)1
  128. Douglas County, GA (13097)1
  129. Douglas County, MO (29067)1
  130. Douglas County, OR (41019)1
  131. Edgecombe County, NC (37065)1
  132. Edgefield County, SC (45037)1
  133. El Dorado County, CA (06017)1
  134. Elbert County, GA (13105)1
  135. Ellis County, TX (48139)1
  136. Elmore County, AL (01051)1
  137. Erie County, OH (39043)1
  138. Erie County, PA (42049)1
  139. Faulkner County, AR (05045)1
  140. Fergus County, MT (30027)1
  141. Floyd County, GA (13115)1
  142. Forest County, WI (55041)1
  143. Franklin County, NC (37069)1
  144. Frederick County, MD (24021)1
  145. Fresno County, CA (06019)1
  146. Fulton County, NY (36035)1
  147. Galveston County, TX (48167)1
  148. Geauga County, OH (39055)1
  149. Genesee County, MI (26049)1
  150. Geneva County, AL (01061)1
  151. Giles County, TN (47055)1
  152. Gloucester County, VA (51073)1
  153. Grant County, WA (53025)1
  154. Greenville County, SC (45045)1
  155. Greenwood County, SC (45047)1
  156. Habersham County, GA (13137)1
  157. Halifax County, VA (51083)1
  158. Hamilton County, IN (18057)1
  159. Hamilton County, TN (47065)1
  160. Harford County, MD (24025)1
  161. Harlan County, KY (21095)1
  162. Harvey County, KS (20079)1
  163. Henderson County, KY (21101)1
  164. Henrico County, VA (51087)1
  165. Herkimer County, NY (36043)1
  166. Hidalgo County, TX (48215)1
  167. Hinds County, MS (28049)1
  168. Houston County, AL (01069)1
  169. Independence County, AR (05063)1
  170. Ingham County, MI (26065)1
  171. Iredell County, NC (37097)1
  172. Jackson County, MI (26075)1
  173. Johnson County, IA (19103)1
  174. Kennebec County, ME (23011)1
  175. Kent County, MI (26081)1
  176. Kern County, CA (06029)1
  177. Kitsap County, WA (53035)1
  178. Knox County, TN (47093)1
  179. Lake County, IN (18089)1
  180. Lake County, OH (39085)1
  181. Lancaster County, PA (42071)1
  182. Lane County, OR (41039)1
  183. Latah County, ID (16057)1
  184. Lauderdale County, MS (28075)1
  185. Lawrence County, TN (47099)1
  186. Lenoir County, NC (37107)1
  187. Leon County, FL (12073)1
  188. Levy County, FL (12075)1
  189. Lincoln County, MS (28085)1
  190. Lincoln County, SD (46083)1
  191. Macon County, IL (17115)1
  192. Madison County, TN (47113)1
  193. Madison Parish, LA (22065)1
  194. Mahoning County, OH (39099)1
  195. Marion County, IN (18097)1
  196. Marshall County, KY (21157)1
  197. McCracken County, KY (21145)1
  198. Mecklenburg County, NC (37119)1
  199. Merced County, CA (06047)1
  200. Mercer County, NJ (34021)1
  201. Meriwether County, GA (13199)1
  202. Modoc County, CA (06049)1
  203. Monongalia County, WV (54061)1
  204. Montgomery County, MD (24031)1
  205. Montgomery County, PA (42091)1
  206. Montgomery County, VA (51121)1
  207. Moore County, NC (37125)1
  208. Morgan County, IN (18109)1
  209. Muskegon County, MI (26121)1
  210. Muskogee County, OK (40101)1
  211. Nash County, NC (37127)1
  212. Nassau County, NY (36059)1
  213. New Castle County, DE (10003)1
  214. New York County, NY (36061)1
  215. Norfolk County, MA (25021)1
  216. Nueces County, TX (48355)1
  217. Okaloosa County, FL (12091)1
  218. Onondaga County, NY (36067)1
  219. Ouachita County, AR (05103)1
  220. Panola County, MS (28107)1
  221. Pinellas County, FL (12103)1
  222. Plymouth County, MA (25023)1
  223. Polk County, IA (19153)1
  224. Portsmouth city, VA (51740)1
  225. Powell County, MT (30077)1
  226. Prince William County, VA (51153)1
  227. Pueblo County, CO (08101)1
  228. Pulaski County, AR (05119)1
  229. Rankin County, MS (28121)1
  230. Richland County, SC (45079)1
  231. Richmond city, VA (51760)1
  232. Richmond County, GA (13245)1
  233. Roanoke city, VA (51770)1
  234. Rowan County, NC (37159)1
  235. Rutherford County, TN (47149)1
  236. Saginaw County, MI (26145)1
  237. Schuyler County, NY (36097)1
  238. Scott County, IL (17171)1
  239. Scott County, MO (29201)1
  240. Sheridan County, WY (56033)1
  241. Smith County, TX (48423)1
  242. Solano County, CA (06095)1
  243. Somerset County, PA (42111)1
  244. Spartanburg County, SC (45083)1
  245. St. Clair County, IL (17163)1
  246. St. Mary's County, MD (24037)1
  247. Stanly County, NC (37167)1
  248. Stearns County, MN (27145)1
  249. Stokes County, NC (37169)1
  250. Suffolk County, NY (36103)1
  251. Sullivan County, TN (47163)1
  252. Sumter County, AL (01119)1
  253. Tarrant County, TX (48439)1
  254. Tehama County, CA (06103)1
  255. Texas County, MO (29215)1
  256. Tishomingo County, MS (28141)1
  257. Troup County, GA (13285)1
  258. Uvalde County, TX (48463)1
  259. Volusia County, FL (12127)1
  260. Wake County, NC (37183)1
  261. Ware County, GA (13299)1
  262. Washburn County, WI (55129)1
  263. Washoe County, NV (32031)1
  264. Washtenaw County, MI (26161)1
  265. Weber County, UT (49057)1
  266. Western Connecticut Planning Region, CT (09190)1
  267. Will County, IL (17197)1
  268. Winnebago County, WI (55139)1
  269. Yuba County, CA (06115)1

8 incidents have no county or county equivalent label. That is a refusal to guess, not a count of zero, and those incidents stay in the table and on the map. The reasons an incident lands here:

  • near_boundary: the source point falls within the boundary tolerance, so no area is claimed rather than one being picked
  • overlap: the source point matched more than one area, so neither is claimed
  • outside: the source point falls outside every boundary in the layer
  • source_state_conflict: the derived area's state disagrees with the state the source row states, so neither is claimed
  • missing_point: the source row carries no coordinate at all
  • invalid_point: the source row's coordinate is not a usable position

Metropolitan areas

493 of 501 incidents in this selection carry a derived label, across 149 areas. These counts cover the whole selection, not the table page below.

Non-metropolitan: 59 incidents. They are inside a county and outside every metropolitan area in the layer: a known non-metropolitan classification, not an unknown one. These are counted, not missing, and they are kept out of the ranking below because they are not a metropolitan area. Micropolitan places fall in here too: the layer holds metropolitan statistical areas only.

  1. Los Angeles-Long Beach-Anaheim, CA Metro Area (31080)19
  2. Atlanta-Sandy Springs-Roswell, GA Metro Area (12060)18
  3. Chicago-Naperville-Elgin, IL-IN Metro Area (16980)17
  4. Miami-Fort Lauderdale-West Palm Beach, FL Metro Area (33100)14
  5. Seattle-Tacoma-Bellevue, WA Metro Area (42660)11
  6. Detroit-Warren-Dearborn, MI Metro Area (19820)10
  7. Phoenix-Mesa-Chandler, AZ Metro Area (38060)10
  8. New York-Newark-Jersey City, NY-NJ Metro Area (35620)9
  9. Houston-Pasadena-The Woodlands, TX Metro Area (26420)8
  10. Milwaukee-Waukesha, WI Metro Area (33340)7
Show the remaining 139 areas
  1. Washington-Arlington-Alexandria, DC-VA-MD-WV Metro Area (47900)7
  2. Birmingham, AL Metro Area (13820)6
  3. Dallas-Fort Worth-Arlington, TX Metro Area (19100)6
  4. Denver-Aurora-Centennial, CO Metro Area (19740)6
  5. Riverside-San Bernardino-Ontario, CA Metro Area (40140)6
  6. San Diego-Chula Vista-Carlsbad, CA Metro Area (41740)6
  7. Augusta-Richmond County, GA-SC Metro Area (12260)5
  8. Boston-Cambridge-Newton, MA-NH Metro Area (14460)5
  9. Cleveland, OH Metro Area (17410)5
  10. Jacksonville, FL Metro Area (27260)5
  11. Killeen-Temple, TX Metro Area (28660)5
  12. Las Vegas-Henderson-North Las Vegas, NV Metro Area (29820)5
  13. Nashville-Davidson--Murfreesboro--Franklin, TN Metro Area (34980)5
  14. Orlando-Kissimmee-Sanford, FL Metro Area (36740)5
  15. Pittsburgh, PA Metro Area (38300)5
  16. San Francisco-Oakland-Fremont, CA Metro Area (41860)5
  17. St. Louis, MO-IL Metro Area (41180)5
  18. Tulsa, OK Metro Area (46140)5
  19. Albuquerque, NM Metro Area (10740)4
  20. Baltimore-Columbia-Towson, MD Metro Area (12580)4
  21. Charlotte-Concord-Gastonia, NC-SC Metro Area (16740)4
  22. Cincinnati, OH-KY-IN Metro Area (17140)4
  23. Columbus, OH Metro Area (18140)4
  24. Durham-Chapel Hill, NC Metro Area (20500)4
  25. Kansas City, MO-KS Metro Area (28140)4
  26. Louisville/Jefferson County, KY-IN Metro Area (31140)4
  27. Montgomery, AL Metro Area (33860)4
  28. New Orleans-Metairie, LA Metro Area (35380)4
  29. Omaha, NE-IA Metro Area (36540)4
  30. Philadelphia-Camden-Wilmington, PA-NJ-DE-MD Metro Area (37980)4
  31. Tampa-St. Petersburg-Clearwater, FL Metro Area (45300)4
  32. Wichita, KS Metro Area (48620)4
  33. Auburn-Opelika, AL Metro Area (12220)3
  34. Fayetteville, NC Metro Area (22180)3
  35. Huntsville, AL Metro Area (26620)3
  36. Indianapolis-Carmel-Greenwood, IN Metro Area (26900)3
  37. Lafayette, LA Metro Area (29180)3
  38. Memphis, TN-MS-AR Metro Area (32820)3
  39. Mobile, AL Metro Area (33660)3
  40. Portland-Vancouver-Hillsboro, OR-WA Metro Area (38900)3
  41. Salt Lake City-Murray, UT Metro Area (41620)3
  42. Spokane-Spokane Valley, WA Metro Area (44060)3
  43. Tucson, AZ Metro Area (46060)3
  44. Virginia Beach-Chesapeake-Norfolk, VA-NC Metro Area (47260)3
  45. Austin-Round Rock-San Marcos, TX Metro Area (12420)2
  46. Cape Coral-Fort Myers, FL Metro Area (15980)2
  47. Charleston-North Charleston, SC Metro Area (16700)2
  48. Colorado Springs, CO Metro Area (17820)2
  49. Dothan, AL Metro Area (20020)2
  50. Farmington, NM Metro Area (22140)2
  51. Hanford-Corcoran, CA Metro Area (25260)2
  52. Hartford-West Hartford-East Hartford, CT Metro Area (25540)2
  53. Jackson, MS Metro Area (27140)2
  54. Kalamazoo-Portage, MI Metro Area (28020)2
  55. Lexington-Fayette, KY Metro Area (30460)2
  56. Little Rock-North Little Rock-Conway, AR Metro Area (30780)2
  57. Minneapolis-St. Paul-Bloomington, MN-WI Metro Area (33460)2
  58. Ocala, FL Metro Area (36100)2
  59. Oklahoma City, OK Metro Area (36420)2
  60. Raleigh-Cary, NC Metro Area (39580)2
  61. Richmond, VA Metro Area (40060)2
  62. Rochester, NY Metro Area (40380)2
  63. Rocky Mount, NC Metro Area (40580)2
  64. Salinas, CA Metro Area (41500)2
  65. San Antonio-New Braunfels, TX Metro Area (41700)2
  66. San Jose-Sunnyvale-Santa Clara, CA Metro Area (41940)2
  67. Santa Maria-Santa Barbara, CA Metro Area (42200)2
  68. Sherman-Denison, TX Metro Area (43300)2
  69. Shreveport-Bossier City, LA Metro Area (43340)2
  70. Stockton-Lodi, CA Metro Area (44700)2
  71. Urban Honolulu, HI Metro Area (46520)2
  72. Anchorage, AK Metro Area (11260)1
  73. Ann Arbor, MI Metro Area (11460)1
  74. Bakersfield-Delano, CA Metro Area (12540)1
  75. Binghamton, NY Metro Area (13780)1
  76. Blacksburg-Christiansburg-Radford, VA Metro Area (13980)1
  77. Bremerton-Silverdale-Port Orchard, WA Metro Area (14740)1
  78. Bridgeport-Stamford-Danbury, CT Metro Area (14860)1
  79. Burlington-South Burlington, VT Metro Area (15540)1
  80. Carson City, NV Metro Area (16180)1
  81. Champaign-Urbana, IL Metro Area (16580)1
  82. Chattanooga, TN-GA Metro Area (16860)1
  83. Columbia, SC Metro Area (17900)1
  84. Corpus Christi, TX Metro Area (18580)1
  85. Crestview-Fort Walton Beach-Destin, FL Metro Area (18880)1
  86. Decatur, IL Metro Area (19500)1
  87. Deltona-Daytona Beach-Ormond Beach, FL Metro Area (19660)1
  88. Des Moines-West Des Moines, IA Metro Area (19780)1
  89. Erie, PA Metro Area (21500)1
  90. Eugene-Springfield, OR Metro Area (21660)1
  91. Flagstaff, AZ Metro Area (22380)1
  92. Flint, MI Metro Area (22420)1
  93. Fort Wayne, IN Metro Area (23060)1
  94. Fresno, CA Metro Area (23420)1
  95. Gainesville, FL Metro Area (23540)1
  96. Grand Rapids-Wyoming-Kentwood, MI Metro Area (24340)1
  97. Greenville-Anderson-Greer, SC Metro Area (24860)1
  98. Iowa City, IA Metro Area (26980)1
  99. Jackson, MI Metro Area (27100)1
  100. Jackson, TN Metro Area (27180)1
  101. Jonesboro, AR Metro Area (27860)1
  102. Kingsport-Bristol, TN-VA Metro Area (28700)1
  103. Knoxville, TN Metro Area (28940)1
  104. Lake Charles, LA Metro Area (29340)1
  105. Lancaster, PA Metro Area (29540)1
  106. Lansing-East Lansing, MI Metro Area (29620)1
  107. Lexington Park, MD Metro Area (30500)1
  108. McAllen-Edinburg-Mission, TX Metro Area (32580)1
  109. Merced, CA Metro Area (32900)1
  110. Morgantown, WV Metro Area (34060)1
  111. Muskegon-Norton Shores, MI Metro Area (34740)1
  112. Ogden, UT Metro Area (36260)1
  113. Oshkosh-Neenah, WI Metro Area (36780)1
  114. Paducah, KY-IL Metro Area (37140)1
  115. Palm Bay-Melbourne-Titusville, FL Metro Area (37340)1
  116. Panama City-Panama City Beach, FL Metro Area (37460)1
  117. Pinehurst-Southern Pines, NC Metro Area (38240)1
  118. Pittsfield, MA Metro Area (38340)1
  119. Pueblo, CO Metro Area (39380)1
  120. Reno, NV Metro Area (39900)1
  121. Roanoke, VA Metro Area (40220)1
  122. Rome, GA Metro Area (40660)1
  123. Sacramento-Roseville-Folsom, CA Metro Area (40900)1
  124. Saginaw, MI Metro Area (40980)1
  125. Sandusky, OH Metro Area (41780)1
  126. Savannah, GA Metro Area (42340)1
  127. Sioux Falls, SD-MN Metro Area (43620)1
  128. Spartanburg, SC Metro Area (43900)1
  129. St. Cloud, MN Metro Area (41060)1
  130. Syracuse, NY Metro Area (45060)1
  131. Tallahassee, FL Metro Area (45220)1
  132. Trenton-Princeton, NJ Metro Area (45940)1
  133. Tyler, TX Metro Area (46340)1
  134. Utica-Rome, NY Metro Area (46540)1
  135. Vallejo, CA Metro Area (46700)1
  136. Vineland, NJ Metro Area (47220)1
  137. Winston-Salem, NC Metro Area (49180)1
  138. Youngstown-Warren, OH Metro Area (49660)1
  139. Yuba City, CA Metro Area (49700)1

8 incidents have no metropolitan area label. That is a refusal to guess, not a count of zero, and those incidents stay in the table and on the map. The reasons an incident lands here:

  • county_near_boundary: the county lookup was inconclusive (the point is within the boundary tolerance), so no metro is claimed either
  • county_overlap: the county lookup matched more than one area, so no metro is claimed either
  • county_outside: the point falls outside every county, so no metro is claimed either
  • missing_point: the source row carries no coordinate at all
  • county_invalid_point: the coordinate is not usable, so no metro is claimed

Still no rates. Counts by county or metro area are not rates by county or metro area. No population denominator compatible with these archives’ selection criteria is supplied, and dividing by one from elsewhere would compare a selected, definition-specific sample against a complete population.

Rates per population: unavailable

Counts are not rates. No compatible population denominator is supplied with these archives, and dividing archive counts by a population figure from elsewhere would compare a selected, definition-specific sample against a complete one. Until a matching denominator exists, this page shows counts only.

Incidents

Incidents all archived incidents. Page 5 of 17, 30 rows per page, 501 matching in total.
DateIncidentPlaceDefinitionLocation on mapSource rows
2016-04-09Memphis, TNMemphis, TennesseeCounty: Shelby County, TN (approximate, 2026 boundary)Metro: Memphis, TN-MS-AR Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
35.1495, -90.0490Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-04-07Chicago, ILChicago, IllinoisCounty: Cook County, IL (approximate, 2026 boundary)Metro: Chicago-Naperville-Elgin, IL-IN Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
41.8781, -87.6298Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-04-01Albuquerque, NMAlbuquerque, New MexicoCounty: Bernalillo County, NM (approximate, 2026 boundary)Metro: Albuquerque, NM Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
35.0853, -106.6056Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-26Louisburg, NCLouisburg, North CarolinaCounty: Franklin County, NC (approximate, 2026 boundary)Metro: Raleigh-Cary, NC Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
36.0990, -78.3011Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-25Lawrenceburg, TNLawrenceburg, TennesseeCounty: Lawrence County, TN (approximate, 2026 boundary)Metro: Non-metropolitan, a classification, not a missing value
  • Mass (Stanford definition)
35.2423, -87.3347Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-25Greenhill, ALGreenhill, AlabamaCounty: Madison County, AL (approximate, 2026 boundary)Metro: Huntsville, AL Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
34.7593, -86.6025Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-21Sherman, TXSherman, TexasCounty: Grayson County, TX (approximate, 2026 boundary)Metro: Sherman-Denison, TX Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
33.6357, -96.6089Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-21Sherman, TXSherman, TexasCounty: Grayson County, TX (approximate, 2026 boundary)Metro: Sherman-Denison, TX Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
33.6357, -96.6089Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-20Louisville, KYLouisville, KentuckyCounty: Jefferson County, KY (approximate, 2026 boundary)Metro: Louisville/Jefferson County, KY-IN Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
38.2527, -85.7585Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-20Louisville, KYLouisville, KentuckyCounty: Jefferson County, KY (approximate, 2026 boundary)Metro: Louisville/Jefferson County, KY-IN Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
38.2527, -85.7585Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-19Plantation, FLPlantation, FloridaCounty: Broward County, FL (approximate, 2026 boundary)Metro: Miami-Fort Lauderdale-West Palm Beach, FL Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
26.1276, -80.2331Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-19Wetumpka, ALWetumpka, AlabamaCounty: Elmore County, AL (approximate, 2026 boundary)Metro: Montgomery, AL Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
32.5437, -86.2119Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-19Plantation, FLPlantation, FloridaCounty: Broward County, FL (approximate, 2026 boundary)Metro: Miami-Fort Lauderdale-West Palm Beach, FL Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
26.1276, -80.2331Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-15Huffman High SchoolBirmingham, AlabamaCounty: Jefferson County, AL (approximate, 2026 boundary)Metro: Birmingham, AL Metro Area (approximate, 2026 boundary)
  • School (CNN definition)
33.6129, -86.6820Precision unknown; supplied by CNN school shootings archive.
2016-03-15Atlanta, GAAtlanta, GeorgiaCounty: Fulton County, GA (approximate, 2026 boundary)Metro: Atlanta-Sandy Springs-Roswell, GA Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
33.7490, -84.3880Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-13Fort Myers, FLFort Myers, FloridaCounty: Lee County, FL (approximate, 2026 boundary)Metro: Cape Coral-Fort Myers, FL Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
26.6406, -81.8723Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-12Elberton, GAElberton, GeorgiaCounty: Elbert County, GA (approximate, 2026 boundary)Metro: Non-metropolitan, a classification, not a missing value
  • Mass (Stanford definition)
34.1112, -82.8671Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-11Trenton, NJTrenton, New JerseyCounty: Mercer County, NJ (approximate, 2026 boundary)Metro: Trenton-Princeton, NJ Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
40.2171, -74.7429Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-11Detroit, MIDetroit, MichiganCounty: Wayne County, MI (approximate, 2026 boundary)Metro: Detroit-Warren-Dearborn, MI Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
42.3314, -83.0458Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-09Pittsburgh, PAPittsburgh, PennsylvaniaCounty: Allegheny County, PA (approximate, 2026 boundary)Metro: Pittsburgh, PA Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
40.4406, -79.9959Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-09Wilkinsburg, PAWilkinsburg, PennsylvaniaCounty: Allegheny County, PA (approximate, 2026 boundary)Metro: Pittsburgh, PA Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
40.4417, -79.8820Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-07Kansas City, KSKansas City, KansasCounty: Wyandotte County, KS (approximate, 2026 boundary)Metro: Kansas City, MO-KS Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
39.1141, -94.6275Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-07Lafayette, LALafayette, LouisianaCounty: Lafayette Parish, LA (approximate, 2026 boundary)Metro: Lafayette, LA Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
30.2241, -92.0198Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-07Kansas City, KSKansas City, KansasCounty: Wyandotte County, KS (approximate, 2026 boundary)Metro: Kansas City, MO-KS Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
39.1141, -94.6275Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-06Chelsea, MAChelsea, MassachusettsCounty: Suffolk County, MA (approximate, 2026 boundary)Metro: Boston-Cambridge-Newton, MA-NH Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
42.3918, -71.0328Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-06Chelsea, MAChelsea, MassachusettsCounty: Suffolk County, MA (approximate, 2026 boundary)Metro: Boston-Cambridge-Newton, MA-NH Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
42.3918, -71.0328Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-06Roswell, GARoswell, GeorgiaCounty: Fulton County, GA (approximate, 2026 boundary)Metro: Atlanta-Sandy Springs-Roswell, GA Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
34.0232, -84.3616Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-03-05Wichita, KSWichita, KansasCounty: Sedgwick County, KS (approximate, 2026 boundary)Metro: Wichita, KS Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
37.6872, -97.3301Precision unknown; supplied by Stanford Mass Shootings in America archive.
2016-02-29Madison Jr/Sr High SchoolMiddletown, OhioCounty: Butler County, OH (approximate, 2026 boundary)Metro: Cincinnati, OH-KY-IN Metro Area (approximate, 2026 boundary)
  • School (CNN definition)
39.5339, -84.4433Precision unknown; supplied by CNN school shootings archive.
2016-02-28Detroit, MIDetroit, MichiganCounty: Wayne County, MI (approximate, 2026 boundary)Metro: Detroit-Warren-Dearborn, MI Metro Area (approximate, 2026 boundary)
  • Mass (Stanford definition)
42.3314, -83.0458Precision unknown; supplied by Stanford Mass Shootings in America archive.

Overlaps between the two archives

Only explicit reviewed named-venue links merge source records. Other overlaps may remain; category counts are not additive.

  • Chardon High School · Chardon High School

    Manually reviewed date, state and named-school agreement in both pinned datasets.

    source row 1 · source row 2

  • Sandy Hook Elementary · Sandy Hook Elementary School

    Manually reviewed date, state and named-school agreement in both pinned datasets.

    source row 1 · source row 2

  • Sparks Middle School · Sparks Middle School

    Manually reviewed date, state and named-school agreement in both pinned datasets.

    source row 1 · source row 2

  • Marysville-Pilchuck High School · Marysville-Pilchuck High School

    Manually reviewed date, state and named-school agreement in both pinned datasets.

    source row 1 · source row 2

  • 2016-02-09 · unresolved candidate, counted separately

    Muskegon Heights: date/city and generic high-school description suggest overlap, but named-venue corroboration is insufficient; not merged. Stanford marks it uncertain.

Limits of this data

  • Historical selected incidents; reporting and definition differences prevent treating these as current national rates.
  • Only explicitly reviewed cross-source overlaps are merged; other overlaps may remain. Category counts are not additive.
  • Source coordinates have unknown precision and are not verified rooftop locations.
  • County and metro labels are approximate point-in-polygon estimates using January 1, 2026 Census boundaries, not event-date boundaries.
  • Near-boundary, ambiguous and missing points remain unknown; non-metropolitan is separate from unknown.
  • Rates are disabled because no compatible population denominator is supplied.

Archive version fed61bae40f2764e…, imported 2026-09-13 04:08:57 UTC, rendered 2026-09-13 15:28:21 UTC.