According to the U.S. Bureau of Justice Statistics' 2008 Census of State and Local Law Enforcement Agencies, 509 law enforcement agencies exist in the U.S. state of California, employing 79,431 sworn police officers—about 217 for each 100,000 residents.2008 Census of State and Local Law Enforcement Agencies, by Brian A Reaves, US Department of Justice, Office of Justice Programs, Bureau of Justice Statistics, July 2011
California police officers' authority is derived from the California Penal Code (PC) beginning with Section 830. PC 830.1 includes the California Department of Justice (CA DOJ) along with local and county agencies. PC 830.2 includes the California Highway Patrol (CHP) and nine other state agencies. PC 830.3 includes 21 state agencies with law enforcement divisions.
The California Commission on Peace Officer Standards and Training maintains a list of state law enforcement agencies on its website.
State agencies
California Department of Justice Division of Law Enforcement California Bureau of Investigation California Bureau of Firearms California Bureau of Forensic Services California Bureau of Gambling Control Division of Medi-Cal Fraud & Elder Abuse California Department of Corrections and Rehabilitation Business, Consumer Services and Housing Agency California Department of Alcoholic Beverage Control California Department of Consumer Affairs Division of Investigation California Natural Resources Agency California Department of Fish and Wildlife California State Parks Peace Officers California Environmental Protection Agency California Department of Toxic Substances Control California State Transportation Agency California Department of Motor Vehicles Investigations Division California Highway Patrol California Department of Insurance Fraud Division California Government Operations Agency California Franchise Tax Board Criminal Investigations Bureau (CFTB-CIB) California Lottery Security Law Enforcement Division California Health and Human Services Agency California Department of Health Care Services California Department of Public Health California Department of State Hospitals Law Enforcement Office of Protective Services (California Department of State Hospitals Police) California Department of Developmental Services Office of Protective Services California Labor and Workforce Development Agency California Employment Development Department Investigation Division
County agencies
Alameda County Sheriff's Office Alameda County Probation Departmenthttps://www.probation.acpd.org/index.page Alpine County Sheriff's Office Amador County Sheriff's Office Butte County Sheriff's Department Calaveras County Sheriff's Department Colusa County Sheriff's Office Contra Costa County Sheriff's Office Del Norte County Sheriff's Office El Dorado County Sheriff's Office Fresno County Sheriff's Office Glenn County Sheriff's Office Humboldt County Sheriff's Office Imperial County Sheriff's Office Inyo County Sheriff's Office Kern County Sheriff's Office Kern County Probation Department Kern County Parks and Recreation Park Rangers Kings County Sheriff's Office Lake County Sheriff's Department Lassen County Sheriff's Office Los Angeles County Sheriff's Department (LASD) Los Angeles County Probation Department Madera County Sheriff's Department Marin County Sheriff's Office Mariposa County Sheriff's Department Mendocino County Sheriff's Office Merced County Sheriff's Office Modoc County Sheriff's Office Mono County Sheriff's Department Monterey County Sheriff's Office Napa County Sheriff's Department Nevada County Sheriff's Office Orange County Sheriff's Department Placer County Sheriff's Office Plumas County Sheriff's Office Riverside County Sheriff's Department Sacramento County Sheriff's Department Sacramento County Park Rangers San Benito County Sheriff's Office San Bernardino County Sheriff's Department San Bernardino County Probation Department San Diego County Sheriff's Department San Diego County Probation Department San Francisco Sheriff's Department San Joaquin County Sheriff's Department San Luis Obispo County Sheriff's Department San Mateo County Sheriff's Office Santa Barbara County Sheriff's Office Santa Clara County Sheriff's Office Santa Clara County Park Rangers Santa Clara County Department of Correction Santa Cruz County Sheriff's Office Shasta County Sheriff's Office Shasta County Marshal's Office Sierra County Sheriff's Office Siskiyou County Sheriff's Department Solano County Sheriff's Office Sonoma County Sheriff's Department Sonoma County Park Rangers Stanislaus County Sheriff's Department Sutter County Sheriff's Department Tehama County Sheriff's Office Trinity County Sheriff's Department Trinity County Marshal's Office Tulare County Sheriff's Office Tuolumne County Sheriff's Office Ventura County Sheriff's Office Yolo County Sheriff's Department Yuba County Sheriff's Department
Municipal agencies
Alameda Police Department Albany Police Department Alhambra Police Department Alturas Police Department Anaheim Police Department Anderson Police Department Angels Camp Police Department Antioch Police Department Arcadia Police Department Arcata Police Department Arroyo Grande Police Department Arvin Police Department Atascadero Police Department Atherton Police Department Atwater Police Department Auburn Police Department Avenal Police Department Azusa Police Department Bakersfield Police Department Baldwin Park Police Department Banning Police Department Barstow Police Department Bear Valley Police Department Beaumont Police Department Bell Police Department Bell Gardens Police Department Belmont Police Department Belvedere Police Department Benicia Police Department Berkeley Police Department Beverly Hills Police Department Bishop Police Department Blythe Police Department Brawley Police Department Brea Police Department Brentwood Police Department Brisbane Police Department Buena Park Police Department Burbank Police Department Burlingame Police Department Calexico Police Department California City Police Department Calipatria Police Department Calistoga Police Department Campbell Police Department Capitola Police Department Carlsbad Police Department Carmel Police Department Cathedral City Police Department Central Marin Police Authority (joint powers agency comprising the cities of Corte Madera, Larkspur, and San Anselmo) Ceres Police Department Chico Police Department Chino Police Department Chowchilla Police Department Chula Vista Police Department Citrus Heights Police Department Claremont Police Department Clayton Police Department Clearlake Police Department Cloverdale Police Department Clovis Police Department Coalinga Police Department Colma Police Department Colton Police Department Colusa Police Department Concord Police Department Corcoran Police Department Corning Police Department Corona Police Department Coronado Police Department Costa Mesa Police Department Cotati Police Department Covina Police Department Crescent City Police Department Culver City Police Department Cypress Police Department Daly City Police Department Davis Police Department Del Rey Oaks Police Department Delano Police Department Desert Hot Springs Police Department Dinuba Police Department Dixon Police Department Dos Pablos Police Department Downey Police Department East Palo Alto Police Department El Cajon Police Department El Centro Police Department El Cerrito Police Department El Monte Police Department El Segundo Police Department Elk Grove Police Department Emeryville Police Department Escalon Police Department Escondido Police Department Etna Police Department Eureka Police Department Exeter Police Department Fairfax Police Department Fairfield Police DepartmentFairfield police shoot, kill felon they say charged with knife; by Henry Lee, 15 January 2015.sfgate.com retrieved 26 January 2015 Farmersville Police Department Ferndale Police Department Firebaugh Police Department Folsom Police Department Fontana Police Department Fort Bragg Police Department Fortuna Police Department Foster City Police Department Fountain Valley Police Department Fowler Police Department Fremont Police Department Fresno Police Department Fullerton Police Department Galt Police Department Garden Grove Police Department Gardena Police Department Gilroy Police Department Glendale Police Department Glendora Police Department Gonzales Police Department Grass Valley Police Department Greenfield Police Department Gridley Police Department Grover Beach Police Department Guadlupe Police Department Gustine Police Department Hanford Police Department Hawthorne Police Department Hayward Police Department Healdsburg Police Department Hemet Police Department Hercules Police Department Hermosa Beach Police Department Hillsborough Police Department Hollister Police Department Huntington Beach Police Department Huntington Park Police Department Huron Police Department Imperial Police Department Indio Police Department Inglewood Police Department Ione Police Department Irvine Police Department Irwindale Police Department Jackson Police Department Kensington Police Department Kerman Police Department King City Police DepartmentThree King City police officers sent notice of termination; former Chief resigns; 12 January 2015, KSBW.com accessed 13 January 2015 Kingsburg Police Department La Habra Police Department La Mesa Police DepartmentOfficial Web Site, accessed 24 August 2014 La Palma Police Department La Verne Police Department Laguna Beach Police Department Lakeport Police Department Lathrop Police Department Lemoore Police Department Lincoln Police Department Lindsay Department of Public Safety Livermore Police Department Livingston Police Department Lodi Police Department Lompoc Police Department Long Beach Police Department Los Alamitos Police Department Los Altos Police Department Los Angeles Police Department Los Angeles Bureau of Street Services, Investigation and Enforcement Division Los Angeles Sanitation and Environmental, Compliance and Enforcement Division Los Banos Police Department Los Gatos/Monte Sereno Police Department Madera Police Department Mammoth Lakes Police Department Manhattan Beach Police Department Manteca Police Department Marina Police Department Martinez Police Department Marysville Police Department McFarland Police Department Mendota Police Department Menifee Police Department Menlo Park Police Department Maricopa Police Department Merced Police Department Mill Valley Police Department Milpitas Police Department Modesto Police Department Monrovia Police Department Montclair Police Department Montebello Police Department Monterey Police Department Monterey Park Police Department Moraga Police Department Morgan Hill Police Department Morro Bay Police Department Mount Shasta Police Department Mountain View Police Department Murrieta Police Department Napa Police Department National City Police Department Nevada City Police Department Newark Police Department Newman Police Department Newport Beach Police Department Novato Police Department Oakdale Police Department Oakland Police Department Oakland Housing Authority Police Department Oakley Police Department Oceanside Police Department Ontario Police Department Orange Police Department Orange Cove Police Department Orland Police Department Oroville Police Department Oxnard Police Department Pacific Grove Police Department Pacifica Police Department Palm Springs Police Department Palo Alto Police Department Palos Verdes Estates Police Department Paradise Police Department Parlier Police Department Pasadena Police Department Paso Robles Police Department Petaluma Police Department Piedmont Police Department Pinole Police Department Pismo Beach Police Department Pittsburg Police Department Placentia Police Department Placerville Police Department Pleasant Hill Police Department Pleasanton Police Department Pomona Police Department Port Hueneme Police Department Porterville Police Department