| Top 10 Deadliest Mass Shootings, United States, 2012-2023 |
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| Rank |
Incident date |
State |
City or county |
Number killed |
Number injured |
| 1 |
October 1, 2017 |
Nevada |
Las Vegas |
61 |
439 |
| 2 |
June 12, 2016 |
Florida |
Orlando |
50 |
53 |
| 3 |
December 14, 2012 |
Connecticut |
Sandy Hook |
28 |
2 |
| 4 |
November 5, 2017 |
Texas |
Sutherland Springs |
27 |
20 |
| 6 |
August 3, 2019 |
Texas |
El Paso |
23 |
23 |
| 5 |
October 16, 1991 |
Texas |
Killeen |
24 |
27 |
| 7 |
May 24, 2022 |
Texas |
Uvalde |
22 |
17 |
| 8 |
October 25, 2023 |
Maine |
Lewiston |
19 |
13 |
| 9 |
February 14, 2018 |
Florida |
Pompano Beach (Parkland) |
17 |
17 |
| 10 |
December 2, 2015 |
California |
San Bernardino |
16 |
19 |
Source: Gun Violence Archive. |
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