Law Enforcement Agencies in Martinez, CA CA › Contra Costa County Agencies serving the city of Martinez in CA. Agency Types in Martinez Campus Police 1 agencies Coroners 1 agencies Municipal Police 1 agencies National Park 1 agencies Parole Probation 1 agencies Sheriff 1 agencies All Agencies in Martinez, CA Contra Costa Cmnty College District Contra Costa County Contra Costa County Contra Costa County Contra Costa County Probation Department Contra Costa County Contra Costa County Sheriffs Office Contra Costa County John Muir National Historic Site Contra Costa County Martinez Police Department Contra Costa County
