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Validated public datasetSource snapshot 2026-08-08Interpretation corrected 2026-10-02116 records

California County Road-User Collision Trends: 2021 and 2023

California OTS county tables report 231,107 people killed or injured in fatal-and-injury collisions across all 58 counties in 2023, compared with 229,586 in 2021. This dataset preserves each county row and source page; it is a two-point comparison, not a continuous annual series or a measure of fault.

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2023 all victims

231,107

Across 58 OTS county rows; +0.7% versus 2021.

2023 victims in pedestrian-involved crashes

13,294

+7.8% versus the 2021 county-row sum.

Validated source rows

116

58 counties for each of two official report years.

Methodology and provenance

The importer requests the official OTS ranking page for every California county for 2021 and 2023, verifies the page identity and required rows, and transcribes only the published victim counts and OTS ranks. Publication requires exactly 116 unique county-year records. The OTS Motorcycles, Pedestrians, and Bicyclists fields count people killed or injured in crashes involving that road user, regardless of which participant was hurt; Pedestrians 65+ specifically counts older pedestrian victims. Statewide values sum one field across the 58 county rows, and categories are never added together. Legacy CSV/JSON field names retain their original keys for compatibility; those names do not define victim identity.

Publisher trail: Hurt Advice, using California Office of Traffic Safety source tables.

Coverage: 2021/2023; California.

Source documents: 116. Source validation: SHA-256 of the official UTF-8 HTML after replacing only Cloudflare request identifiers that change on every response.

Open first primary-source link

What this dataset cannot prove

  • This is a two-point 2021-to-2023 comparison, not a continuous annual trend series. No missing year is interpolated.
  • OTS labels the values as victims killed and injured. They are not counts of crashes, claims, lawsuits, fault findings, or recoveries.
  • A motorcycle-, pedestrian-, or bicycle-involved count can include people who were not using that mode. It is not a count of injured motorcyclists, pedestrians, or bicyclists.
  • Population, travel volume, reporting practices, and exposure differ by county. Raw counts alone should not be used as a risk ranking.
  • The OTS ranks are reproduced as published and should be interpreted through OTS methodology, not as Hurt Advice ratings.

Accessible records

Inspect every published row

The HTML table and both downloads come from the same validated source snapshot. Official row links are included for verification.

Complete public table

California OTS county counts of people killed or injured in all crashes and road-user-involved crashes for 2021 and 2023. Every row links to its official source page.

On a small screen, swipe sideways to view every column. Keyboard users can focus the table region and use the arrow keys to scroll.

California OTS county counts of people killed or injured in all crashes and road-user-involved crashes for 2021 and 2023. Every row links to its official source page.
CountyYearAll victimsMotorcycle-involvedPedestrian-involvedBicycle-involvedOfficial source
Alameda20218,753416579398Official record
Alameda20239,509515673464Official record
Alpine202126403Official record
Alpine202345711Official record
Amador20213022454Official record
Amador20232402723Official record
Butte20211,143714943Official record
Butte2023979925134Official record
Calaveras20213064552Official record
Calaveras20233585874Official record
Colusa20212021520Official record
Colusa20231551050Official record
Contra Costa20214,454236211163Official record
Contra Costa20234,549234246175Official record
Del Norte20211961035Official record
Del Norte20231761194Official record
El Dorado2021773882114Official record
El Dorado20231,004773633Official record
Fresno20215,24322724195Official record
Fresno20235,377189292144Official record
Glenn2021173442Official record
Glenn2023166620Official record
Humboldt2021661463921Official record
Humboldt2023680503432Official record
Imperial202183029379Official record
Imperial2023770322413Official record
Inyo20211651655Official record
Inyo20231371273Official record
Kern20216,041271302106Official record
Kern20236,028287313134Official record
Kings2021910292412Official record
Kings20231,000374422Official record
Lake202155840167Official record
Lake202344334309Official record
Lassen2021198750Official record
Lassen20231761962Official record
Los Angeles202159,6032,8124,0791,877Official record
Los Angeles202358,7583,2634,0341,945Official record
Madera20211,128493212Official record
Madera20231,119515214Official record
Marin20211,0215665119Official record
Marin20231,32389101138Official record
Mariposa20211061500Official record
Mariposa20231031331Official record
Mendocino2021498431210Official record
Mendocino2023473561410Official record
Merced20212,5958711359Official record
Merced20232,386989951Official record
Modoc202165600Official record
Modoc202365830Official record
Mono2021103920Official record
Mono20231161001Official record
Monterey20212,3709314776Official record
Monterey20232,3158112687Official record
Napa2021919623733Official record
Napa2023859594927Official record
Nevada2021552341524Official record
Nevada2023512381413Official record
Orange202117,400726827871Official record
Orange202317,8099028921,116Official record
Placer20212,3611246769Official record
Placer20232,2771507384Official record
Plumas20211551222Official record
Plumas2023921171Official record
Riverside202114,744782477292Official record
Riverside202315,177929608367Official record
Sacramento202112,148597521383Official record
Sacramento202311,407565653529Official record
San Benito202140820108Official record
San Benito2023484231716Official record
San Bernardino202115,967792653232Official record
San Bernardino202315,118870651316Official record
San Diego202118,1591,3851,071768Official record
San Diego202318,7731,6931,122893Official record
San Francisco20214,232425619424Official record
San Francisco20234,260454664403Official record
San Joaquin20215,854226202136Official record
San Joaquin20236,095240275182Official record
San Luis Obispo20211,4541127289Official record
San Luis Obispo20231,254825869Official record
San Mateo20212,859153208210Official record
San Mateo20233,333204245216Official record
Santa Barbara20212,453126108174Official record
Santa Barbara20232,489118144252Official record
Santa Clara20217,716263451462Official record
Santa Clara20238,745368535540Official record
Santa Cruz20211,31511292118Official record
Santa Cruz20231,31510880149Official record
Shasta20211,057854922Official record
Shasta2023726603728Official record
Sierra202115300Official record
Sierra2023411401Official record
Siskiyou202130212120Official record
Siskiyou2023271522Official record
Solano20212,64912711376Official record
Solano20232,86815314098Official record
Sonoma20212,2241349478Official record
Sonoma20232,43813710694Official record
Stanislaus20214,886203200134Official record
Stanislaus20234,679211226145Official record
Sutter2021727301717Official record
Sutter2023734233424Official record
Tehama2021462191510Official record
Tehama20233713295Official record
Trinity20211451450Official record
Trinity20231071571Official record
Tulare20212,7361239345Official record
Tulare20233,01211113174Official record
Tuolumne202143544142Official record
Tuolumne20234334961Official record
Ventura20214,862250221220Official record
Ventura20235,130288188247Official record
Yolo20211,368584060Official record
Yolo20231,250546969Official record
Yuba2021599483212Official record
Yuba2023598503822Official record

How to cite this work

Suggested citation: Hurt Advice, "California County Road-User Collision Trends: 2021 and 2023," source snapshot 2026-08-08, interpretation corrected 2026-10-02, based on California Office of Traffic Safety county ranking tables. Cite the specific OTS row URL when quoting a county value.

Suggested citation: Hurt Advice, "California County Road-User Collision Trends: 2021 and 2023," source snapshot 2026-08-08, interpretation corrected 2026-10-02, based on California Office of Traffic Safety county ranking tables. Cite the specific OTS row URL when quoting a county value.

Underlying agency records retain their own terms. Always cite the original agency source for an official fact and label Hurt Advice calculations as derived.

Referral-service boundary

Hurt Advice is a lawyer-referral and legal-information service, not a law firm. This research does not provide legal advice, establish an attorney-client relationship, determine fault or coverage, or promise an outcome.

Read the source policy

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