The murder rate in 2025 was the lowest in modern American history.

Preliminary data shows the murder rate fell nearly 20% from 2024, likely making it the lowest rate since reliable national data began to be collected in 1960.

Why was the murder rate so low?

I’m a professor of sociology and criminology who studies crime trends. In my book, “Crime Wave,” I explore how homicide rates have closely followed three trends over the past decade: alcohol consumption, drug abuse and firearm purchases. Now that the drug and alcohol crises are waning and gun purchases are falling, so too is the murder rate.

The 2015-2021 murder increase

The murder rate’s previous low came in 2014, capping a decline that had been more or less continuous since the early 1990s.

The murder rate usually rises and falls alongside other crimes, so through the 2010s, with property crime and overall youth offending dropping, criminologists expected the murder trend to follow suit.

Instead, the national murder rate increased sharply in 2015 and 2016, and then by an even larger margin in 2020.

Suddenly, it appeared that violent crime was spiraling out of control. By 2021, the homicide rate hit its highest level since the mid-1990s.

Popular, but incomplete, explanations

Some researchers and commentators attributed........

© The Conversation