Car crash statistics in Half Moon Bay, 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: 337 crashes were reported in Half Moon Bay from 2021–2025, 162 with an injury and 4 with a death. 48% (California: 40%) of crashes injured someone. 29% (California: 25%) were hit-and-run.

• 48% (California: 40%) of crashes injured someone.
• 29% (California: 25%) were hit-and-run.
• 28% (California: 26%) happened between 8 p.m. and 6 a.m.
• The busiest hour was 5 p.m. (California: 5 p.m.).

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 337 crashes. It is the officer's judgement at the scene.

• Unsafe speed22% · 74
• Driving under the influence20% · 68
• Unsafe turning or lane change17% · 56
• Failing to yield at an intersection or to turn8% · 28
• Following too closely4% · 14

By type of collision: rear end 27%, broadside 18%, hit object 18%, side swipe 15%.

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

• 15 crashes (4%) involved a pedestrian.
• 17 crashes (5%) involved a bicyclist.
• 29 crashes (9%) involved a motorcyclist.

How many car accidents happen in Half Moon Bay each year?

Reported crashes in Half Moon Bay: 2021: 64, 2022: 75, 2023: 83, 2024: 61, 2025: 54. 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 Half Moon Bay?

The busiest hour for reported crashes in Half Moon Bay is 5 p.m.. 28% (California: 26%) happened between 8 p.m. and 6 a.m.

What causes crashes in Half Moon Bay?

The main cause the reporting officer recorded, as a share of all 337 crashes: unsafe speed 22%, driving under the influence 20%, unsafe turning or lane change 17%, failing to yield at an intersection or to turn 8%, following too closely 4%.

How many people were killed in crashes in Half Moon Bay?

4 crashes killed someone in 337 reported crashes in Half Moon Bay from 2021–2025, and 162 crashes injured someone.

How many crashes in Half Moon Bay involve pedestrians, cyclists or motorcyclists?

15 involved a pedestrian (4%), 17 involved a bicyclist (5%), 29 involved a motorcyclist (9%), of 337 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.