Summary
In 2025, the United States had the lowest number of mass killings in 20 years, with 17 incidents recorded. This represents a significant drop from previous years. A mass killing is when four or more people are killed in a single event.
Key Facts
- There were 17 mass killings in the U.S. in 2025, the lowest in two decades.
- A mass killing is defined as an event where four or more people are killed, excluding the perpetrator.
- The number of mass killings dropped by nearly 59% compared to 2019.
- The database tracking these killings is compiled by The Associated Press, USA Today, and Northeastern University.
- Data for 2025 showed a 24% decrease from 2024, which was already 20% lower than 2023.
- Experts suggest this decrease might be a "regression to the mean," where numbers return to more average levels after an unusual spike.
- Improved responses to violent incidents might be contributing to fewer deaths during such events.
- In 2025, 82% of mass killings involved firearms.
