List of California county jails


California's county jails function like county jails throughout the United States: they are used to incarcerated people pre-trial, through a trial and sentencing, and for some sentences of commitment. The majority of people incarcerated in California's county jails have not been sentenced.
Historically, time would be served in a county jail for sentences of less than a year, including sentences for misdemeanors and some felonies. In 2011, the Public Safety Realignment Act was signed into law in response to the Supreme Court case Brown v. Plata and the resulting court order to address prison overcrowding in the state. Realignment "shifted responsibility for all sentenced non-violent, non-serious, non-sex offenders from state to local jurisdictions", which decreased California prison populations, increased California county jail populations, and changed the types and distribution of crimes for which people were serving sentences in county jails.
For comparison, in December 2019 there were approximately 71,200 people incarcerated in California county jails, 124,027 people incarcerated in California state prisons, and 51,923 people on parole in California.

California county jails

Rated capacity and average daily population reports from the California Board of State and Community Corrections were used to determine what constitutes a distinct jail facility for this list.
JailCountyRated CapacityAverage Daily Population Notes
Santa Rita JailAlameda34892563
Amador County JailAmador7694
Butte County JailButte614538
Calaveras County Adult Detention FacilityCalaveras128100
Colusa County JailColusa9259
Marsh Creek Detention FacilityContra Costa18849
Martinez Detention FacilityContra Costa695418
West County Detention FacilityContra Costa1104628
Del Norte County JailDel Norte146104
El Dorado County Jail, PlacervilleEl Dorado303243
El Dorado County Jail, South Lake TahoeEl Dorado158140
Fresno County Main JailFresno1064952The Fresno County Sheriff has been under a Federal Consent Decree since 1993 in response to chronic overcrowding.
Fresno North Annex JailFresno11521564The Fresno County Sheriff has been under a Federal Consent Decree since 1993 in response to chronic overcrowding.
Fresno South Annex JailFresno528416The Fresno County Sheriff has been under a Federal Consent Decree since 1993 in response to chronic overcrowding.
Glenn County Adult Detention FacilityGlenn14496
Humboldt County Correctional FacilityHumboldt417388
Herbert Hughes Correctional CenterImperial314150
Imperial Adult Regional FacilityImperial288204
Imperial County Oren Fox Detention FacilityImperial27632The facility opened in 2018 with funds allocated under .
Inyo County JailInyo9639
Kern County Central Receiving FacilityKern292126
Lerdo Justice FacilityKern796701
Lerdo Maximum/Medium Security FacilityKern374152
Lerdo Pre-Trial FacilityKern1344870
Kings County JailKings373561
Lake County Hill Road FacilityLake286249
Lassen County Adult Detention FacilityLassen23194
Los Angeles Century Regional Detention FacilityLos Angeles17082148
Los Angeles Men's Central JailLos Angeles35124506
Los Angeles North County Correctional FacilityLos Angeles22143783
Los Angeles Pitchess Detention Center East FacilityLos Angeles92672The facility is currently closed, but is being used as a fire camp.
Los Angeles Pitchess North FacilityLos Angeles8321421
Los Angeles Pitchess South FacilityLos Angeles7821455
Los Angeles Twin Towers Correctional FacilityLos Angeles24323318Stated by the Sheriff's Office to be the world's largest jail and the world's largest mental health facility.
Madera Adult Correctional FacilityMadera560460The facility is run by the Madera County Department of Corrections, and not the Sheriff as is typical in California.
Marin County JailMarin349265
Mariposa County Adult Detention FacilityMariposa5843
Mendocino Adult Detention FacilityMendocino County295284
John Latorraca Correctional CenterMerced564416
Merced County JailMerced189176
Modoc County JailModoc4339
Mono County JailMono4826
Monterey County JailMonterey575669
Monterey County Rehabilitation FacilityMonterey250181
Napa County JailNapa276237The jail is run by the Napa County Department of Corrections, and not the Sheriff as is typical in California.
Wayne Brown Correctional FacilityNevada284195
Orange County Intake Release CenterOrange407455
James A. Musick FacilityOrange4490The facility is under temporary closure for renovations as of July, 2019, and is expected to re-open in 2022. It was also an ICE detention facility.
Orange County Men's JailOrange12191209
Orange County Women's JailOrange274294
Orange County Theo Lacy JailOrange20802894
Placer County Main JailPlacer492323
South Placer Minimum Security JailPlacer12091
South Placer JailPlacer300242
Plumas County JailPlumas6760
Blythe JailRiverside79114
Indio JailRiverside238348
Larry D. Smith Correctional FacilityRiverside14581450
Robert Presley Detention CenterRiverside760741
Southwest Detention Center Riverside11421141
Rio Cosumnes Correctional CenterSacramento16251624
Sacramento County Main JailSacramento23801877
San Benito Adult Detention CenterSan Benito142121
San Bernardino Central Detention CenterSan Bernardino772732Also used by the United States Marshals Service as a west coast hub for the transportation and housing of federal inmates.
Glen Helen Rehabilitation CenterSan Bernardino1070901
High Desert Detention CenterSan Bernardino20981235
West Valley Detention CenterSan Bernardino30722465
East Mesa Reentry FacilitySan Diego760700
San Diego County Facility #8San Diego200181
George Bailey Detention FacilitySan Diego13801522
Las Colinas Women's Detention FacilitySan Diego1216782
San Diego Central JailSan Diego946950
South Bay Detention FacilitySan Diego386395
Vista Detention FacilitySan Diego807714
San Diego Work Furlough And Residential Reentry CenterSan Diego483335This facility is operated by CoreCivic, and is under the jurisdiction of the San Diego County Probation Department, rather than the Sheriff.
San Francisco County Jail #2San Francisco392286
San Francisco County Jail #4San Francisco402288
San Francisco County Jail #5San Francisco768608
John J. Zunino FacilitySan Joaquin11951019
San Joaquin County Honor FarmSan Joaquin493290
San Luis Obispo County JailSan Luis Obispo714439
San Luis Obispo Honor FarmSan Luis Obispo6350
Maguire Correctional FacilitySan Mateo688489
Maple Street Correctional FacilitySan Mateo586430
Men's & Women's Transitional FacilitiesSan Mateo8839
Santa Barbara Medium Security FacilitySanta Barbara160151
Santa Barbara County Main JailSanta Barbara659707
Santa Clara County Elmwood Complex - Men's FacilitySanta Clara23992227
Santa Clara County Elmwood Complex - Women's FacilitySanta Clara634350
Santa Clara County Main JailSanta Clara1350663
Santa Cruz Blaine Street FacilitySanta Cruz County, California3218
Santa Cruz Main JailSanta Cruz County, California319282
Santa Cruz Rountree Medium FacilitySanta Cruz County, California9667
Shasta County Main JailShasta381431
Siskiyou County JailSiskiyou10486
Claybank FacilitySolano358222
Solano County Justice CenterSolano712231
Stanton Correctional FacilitySolano365255
Sonoma County Main Adult Detention FacilitySonoma848721
Sonoma County North County Detention FacilitySonoma561264
Stanislaus County Public Safety CenterStanislaus1014803
Stanislaus County Public Safety Center Units 1 & 2Stanislaus384281
Stanislaus County REACT CenterStanislaus288143
Sutter County JailSutter352250
Tehama County JailTehama191169
Trinity County Detention FacilityTrinity5354
Bob Wiley Detention FacilityTulare696604
Tulare County Men's Correctional FacilityTulare366237
Tulare County Pre-Trial FacilityTulare384347
Tulare County JailTulare272237
Tuolumne County JailTuolumne147144
Todd Road JailVentura796770
Ventura County Main JailVentura828747
Monroe Detention CenterYolo272239
Walter J. Leinberger Memorial CenterYolo12070
Yuba County JailYuba426372Also an Immigration and Customs Enforcement detention facility.

The following counties do not have jails: