Car crash statistics in Rancho Cucamonga, CA

We don't rate cities as safe or unsafe: crash counts can't say how risky a street is, and busy streets have more crashes partly because more people use them. This page covers traffic crashes, not crime. What the records show: 8,030 crashes were reported in Rancho Cucamonga from 2021–2025, 2,604 with an injury and 54 with a death. 32% (California: 40%) of crashes injured someone. 16% (California: 25%) were hit-and-run.

• 32% (California: 40%) of crashes injured someone.
• 16% (California: 25%) were hit-and-run.
• 23% (California: 26%) happened between 8 p.m. and 6 a.m.
• The busiest hour was 3 p.m. (California: 5 p.m.).
• 34% were on a freeway.

Set against all reported crashes in California, 2021–2025. Without traffic counts these can't say how risky a street is.

The main cause the reporting officer recorded, as a share of all 8,030 crashes. It is the officer's judgement at the scene.

• Unsafe speed34% · 2,754
• Unsafe turning or lane change13% · 1,031
• Failing to yield at an intersection or to turn12% · 983
• Driving under the influence10% · 794
• Running a red light or stop sign9% · 760

By type of collision: rear end 35%, broadside 22%, side swipe 18%, hit object 13%.

The latest year can rise as late reports come in, and some police departments file months late.

• 159 crashes (2%) involved a pedestrian. See where they cluster
• 168 crashes (2%) involved a bicyclist.
• 243 crashes (3%) involved a motorcyclist. See where they cluster

How many car accidents happen in Rancho Cucamonga each year?

Reported crashes in Rancho Cucamonga: 2021: 1,742, 2022: 1,774, 2023: 1,676, 2024: 1,501, 2025: 1,337. The latest year can rise as late reports come in, and some police departments file their reports months late.

What time do most crashes happen in Rancho Cucamonga?

The busiest hour for reported crashes in Rancho Cucamonga is 3 p.m.. 23% (California: 26%) happened between 8 p.m. and 6 a.m.

What causes crashes in Rancho Cucamonga?

The main cause the reporting officer recorded, as a share of all 8,030 crashes: unsafe speed 34%, unsafe turning or lane change 13%, failing to yield at an intersection or to turn 12%, driving under the influence 10%, running a red light or stop sign 9%.

How many people were killed in crashes in Rancho Cucamonga?

54 crashes killed someone in 8,030 reported crashes in Rancho Cucamonga from 2021–2025, and 2,604 crashes injured someone.

How many crashes in Rancho Cucamonga involve pedestrians, cyclists or motorcyclists?

159 involved a pedestrian (2%), 168 involved a bicyclist (2%), 243 involved a motorcyclist (3%), of 8,030 reported crashes from 2021–2025.

Where does this data come from?

Police crash reports in the California Crash Reporting System (CCRS), published by the state on data.ca.gov. Every reported crash is counted, whatever the vehicles, and no locations are used.