Outside Agencies Disclaimer The websites linked to on this page are not maintained by Riverside Co. TLMA. We assume no responsibility for the accuracy of the data available on these external sites. Riverside County Departments & Agencies Agency / Department Website Link Phone Number County of Riverside Home Page Aging, Office on 1.800.510.2020 1.951.867.3800 Agricultural Commissioner 1.951.955.3045 Assessor-County Clerk-Recorder 1.951.955.6200 Auditor-Controller (951) 955-3800 Board of Supervisors See website for district phone numbers Clerk of the Board 1.951.955.1060 Community Action 1.951.955.4900 1.800.511.1110 Cooperative Extension See website Coroner 1.951.443.2300 County Fair/Desert Expo Center See website District Attorney See website Economic Development Agency (EDA) 1.951.955.8916 EDA - Housing/CDBG 1.800.909.0079 Edward-Dean Museum 1.951.845.2626 Environmental Health 1.888.722.4234 Fire Department 1.951.940.6900 Flood Control 1.951.955.1200 Human Resources 1.951.955.3500 Law Library 1.951.955,6390 Library Administration See website Mental Health 1.951.358.4500 Probation 1.951.955.2830 Public Defender 1.951.955.6000 Public Health 1.951.358.5000 Public Social Services (DPSS) 1.951.358.3000 Purchasing & Material Services 1.951.955.4937 Regional Parks and Open Space District See website Registrar of Voters 1.951.486.7200 1.800.773.VOTE Sheriff Administration 1.951.955.2400 Riverside County Regional Medical Center 1.951.486.4000 Superior Court of California, County of Riverside See website Treasurer-Tax Collector 1.951.955.3900 Veterans' Services 1.951.955.6050 Waste Management 1.951.486.3200 Incorporated Cities in Riverside County Banning Beaumont Blythe Calimesa Canyon Lake Cathedral City Coachella Corona Desert Hot Springs Hemet Indian Wells Indio La Quinta Lake Elsinore Menifee Moreno Valley Murrieta Norco Palm Desert Palm Springs Perris Rancho Mirage Riverside San Jacinto Temecula Wildomar Local Government Associations Coachella Valley Association of Governments (CVAG) Western Riverside Council of Governments (WRCOG) Native American Tribes (Not a complete list) Agua Caliente B.C.I. Cabazon B.M.I. Torres Martinez D.C.I.