Mass shootings in the U.S., by state 1982-2019

As of August 2019, California had the most mass shootings in the United States, with 20 total shootings since 1982. The source defines a mass shooting as a shooting where four or more people were killed.

Firearms in the U.S.

Mass shootings in the United States are disturbingly common. In comparison with other Western countries, there are significantly more shootings in the U.S., which some theorize is due to the relatively lax gun control laws. Gun control laws in the U.S. are dependent on the state, and the right to own a firearm is enshrined in the United States Constitution.

Mass shootings

The worst mass shooting in the U.S. was the Las Vegas Strip massacre in 2017, which resulted in 58 deaths and 546 injuries. 11 of the worst mass shootings in the United States have occurred since 2015. The vast majority of the shooters in these incidents are males, and since 2000, police have intercepted 277 active shooter incidents in the U.S.
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Number of mass shootings in the United States between 1982 and August 2019, by state
Total number of mass shootings
California20
Florida11
Texas11
Washington7
Colorado6
Pennsylvania5
Wisconsin4
New York4
Illinois4
Ohio4
Connecticut3
Maryland3
Michigan2
Kentucky2
Georgia2
North Carolina2
Minnesota2
Virginia2
Oregon2
Tennessee2
South Carolina2
Nevada2
Massachusetts1
Lousiana1
Mississippi1
Iowa1
Missouri1
Kansas1
Hawaii1
Nebraska1
District of Colombia1
Oklahoma1
Utah1
Arkansas1
Arizona1
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