Combined Violent and Property Crime Offenses Known to Law Enforcement in Contra Costa County, CA was 1476.00000 Known Incidents in January of 2020, according to the United States Federal Reserve. Historically, Combined Violent and Property Crime Offenses Known to Law Enforcement in Contra Costa County, CA reached a record high of 4374.00000 in January of 2005 and a record low of 1476.00000 in January of 2020. Trading Economics provides the current actual value, an historical data chart and related indicators for Combined Violent and Property Crime Offenses Known to Law Enforcement in Contra Costa County, CA - last updated from the United States Federal Reserve on May of 2024.