Description: Southern California county boundaries and other jurisdictional boundaries including cities, supervisorial districts, communities, zip codes, school districts (Unified, Secondary and Elementary school districts), parks and water areas in Riverside County.Source for county boundaries, communities, school districts, parks and hydrography areas is the U.S. Census Tigerlines. Updated as of the 2020 U.S. Census. Source for cities, supervisorial districts and zip codes from Riverside County Information Technology (RCIT) GIS group. Updated as of January 2023.