Start with a place
Search a California city or ZIP area, then compare its reported crash patterns with statewide context.
Independent civic research
California crash data, made readable.
The Crash Data Project turns California public collision records into maps, local profiles, road research, and plain-language analysis. Every public finding carries its source, reporting window, and limitations.
Explore the public record
Start with the question you have.
The project is organized around durable research paths, not a single dashboard. Move from a broad pattern to the place, road, map, or report that can support it.
Find a place
Follow a road
Review maintained highway corridor profiles with reporting windows, mapped records, city tables, and limitations.
Inspect the geography
Use the research map to filter reported crashes by date, place, severity, road, vehicle, and location coverage.
Read a finding
Open maintained reports with a defined question, fixed window, supporting evidence, methodology, and citation.
Latest available briefing
The Pulse follows the records, not the calendar.
The Pulse is a rolling 90-day view of the newest California crash records available in the warehouse. Its source date and reporting window are shown explicitly.
Read the latest PulseSource data through
Jul 11, 2026
Reported crashes
71,801
ZIP areas represented
1,656
Reporting window: Apr 13, 2026 to Jul 11, 2026. Counts may change when source agencies revise public records.
Support the public work
Help keep California crash data readable.
Sponsorship helps sustain careful data cleaning, public maps, maintained research pages, and transparent source notes. Sponsors are disclosed publicly and cannot influence the records, methods, findings, or corrections.
Source and independence
Useful evidence starts with visible limits.
The project uses California Highway Patrol California Crash Reporting System public records. It is independent civic research operated by Meru AI and is not affiliated with or endorsed by CHP or any government agency.
Crash counts are not exposure-adjusted risk rates. Source records, road labels, city labels, and derived locations may be incomplete or revised.
Read sources, methodology, and privacyUse the work responsibly.
Journalists, educators, researchers, planners, and community organizations can cite maintained pages, build an embed, or contact the project about a local question.