Data last rebuilt 2026-10-01

Car crash statistics in Grass Valley, CA

340 traffic crashes were reported in Grass Valley from 2021–2025, 115 with an injury and 2 with a death. Below: how many each year, what time of day, and the main causes officers recorded.
crashes, 2021–2025
340
crashes, 2021–2025
with an injury
115
with an injury
with a death
2
with a death

Is Grass Valley dangerous to drive?

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: 340 crashes were reported in Grass Valley from 2021–2025, 115 with an injury and 2 with a death. 34% (California: 40%) of crashes injured someone. 13% (California: 25%) were hit-and-run.

What the reports show about crashes in Grass Valley

  • 34% (California: 40%) of crashes injured someone.
  • 13% (California: 25%) were hit-and-run.
  • 24% (California: 26%) happened between 8 p.m. and 6 a.m.
  • The busiest hour was 3 p.m. (California: 5 p.m.).
  • 66% 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.

Main causes of crashes in Grass Valley

The main cause the reporting officer recorded, as a share of all 340 crashes. It is the officer's judgement at the scene.

  • Unsafe speed24% · 81
  • Unsafe turning or lane change21% · 71
  • Straying from the lane or driving on the wrong side16% · 56
  • Driving under the influence15% · 51
  • Failing to yield at an intersection or to turn3% · 11

By type of collision: hit object 39%, rear end 22%, side swipe 19%, other 5%.

What time crashes happen in Grass Valley

12 a.m.6 a.m.12 p.m.6 p.m.11 p.m.

Crashes in Grass Valley by year

YearCrashes
202183
202269
202355
202459
202574

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

People on foot, on bikes and on motorcycles in Grass Valley

  • 10 crashes (3%) involved a pedestrian.
  • 1 crashes (under 1%) involved a bicyclist.
  • 11 crashes (3%) involved a motorcyclist.

Common questions about crashes in Grass Valley

How many car accidents happen in Grass Valley each year?
Reported crashes in Grass Valley: 2021: 83, 2022: 69, 2023: 55, 2024: 59, 2025: 74. 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 Grass Valley?
The busiest hour for reported crashes in Grass Valley is 3 p.m.. 24% (California: 26%) happened between 8 p.m. and 6 a.m.
What causes crashes in Grass Valley?
The main cause the reporting officer recorded, as a share of all 340 crashes: unsafe speed 24%, unsafe turning or lane change 21%, straying from the lane or driving on the wrong side 16%, driving under the influence 15%, failing to yield at an intersection or to turn 3%.
How many people were killed in crashes in Grass Valley?
2 crashes killed someone in 340 reported crashes in Grass Valley from 2021–2025, and 115 crashes injured someone.
How many crashes in Grass Valley involve pedestrians, cyclists or motorcyclists?
10 involved a pedestrian (3%), 1 involved a bicyclist (under 1%), 11 involved a motorcyclist (3%), of 340 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.

Source: California Crash Reporting System (CCRS), 2021–2025. Every crash police reported is counted, whatever the vehicles. Busy streets show more crashes partly because more people use them. Data last rebuilt 2026-10-01. How the data works.