The Most Dangerous Roads in Contra Costa County: 2026 Data Report (2026 edition)
Scranton Law Firm, https://scrantonlawfirm.com/contra-costa-dangerous-roads/
License: CC BY 4.0. Please credit "Scranton Law Firm analysis of NHTSA FARS data, 2019-2024".

contra-costa-fatal-crashes-2019-2024.csv  one row per fatal crash (469): date, hour, deaths, road, cross street, city, victim types, NHTSA-imputed alcohol share, coordinates
road-ranking-2019-2024.csv                deadliest roads: crashes, deaths, miles in county, deaths per mile, deaths per 100M vehicle miles (state highways)
fatality-rates-per-100k.csv               deaths per 100,000 residents: Contra Costa vs California vs U.S., 2019-2024

Sources: NHTSA FARS 2019-2024; Caltrans Traffic Census 2024 AADT; U.S. Census Bureau population estimates; OpenStreetMap. Methods are described on the report page.
