Los Angeles Almanac Photo.
With its nine facilities around the county, the Los Angeles County Jail is the largest jail in the United States and fourth largest in the world. The jail has a rated capacity of 12,404 inmates and an average daily inmate population of 12,738 in the first quarter of 2025.
Also see: Los Angeles County Jail System by the Numbers
| Facility | Location | Average Inmate Count, March, end of 1st Quarter, 2025 |
|---|---|---|
| Biscailuz Center - Closed | 1060 N Eastern Ave, Monterey Park 90063 | --- |
| Century Regional Detention Facility (female inmates) | 11705 S Alameda St, Lynwood 90262; (213) 473-6100 |
1,392 (women) |
| Inmate Reception Center (temporary holding only) | 450 Bauchet St, Los Angeles 90012; Booking: (213) 893-5327; Release: (213) 893-5347; Cashier: (213) 473-6049 |
14,833 (bookings) |
| Access to Care (Los Angeles General Medical Center) | 20151 Marengo St, Los Angeles 90033; General: (323) 409-1000 |
26 |
| Men’s Central Jail | 441 Bauchet St, Los Angeles 90012; General: (213) 473-6100; Main Lobby: (213) 974-4082; Visiting Lobby: (213) 974-4927 |
4,112 (men) |
| Mira Loma Detention Center- Closed | 45100 60th West, Lancaster 93536 | --- |
| North County Correctional Facility | 29340 The Old Road, Castaic 91384; Inmate Info: (213) 473-6100 |
2,970 (men) |
| Pitchess Detention Center East Facility (Serves as a fire camp for inmate firefighters) | 29310 The Old Rd, Castaic 91384 Inmate Info: (213) 473-6100 |
12 (men) |
| Pitchess Detention Center North Facility | 29320 The Old Road, Castaic 91384; Inmate Info: (213) 473-6100 |
1,256 (men) |
| Pitchess Detention Center South Facility | 29330 The Old Road, Castaic 91384; Inmate Info: (213) 473-6100 |
423 (men) |
| Sybil Brand Institute for Women - Closed | 4500 E City Terrace Dr, Monterey Park 90063 | --- |
| Twin Towers Correctional Facility | 450 Bauchet St, Los Angeles 90012; General: (213) 893-5100 |
2,439 (men) |
Inmate Information: (213) 473-6100 or click here
Source: Los Angeles County Sheriff's Department
Los Angeles County Sheriff Custody Operations
Medical Services Bureau of the Los Angeles County Sheriff's Department is the largest correctional medical service provider in the world.
North County Correctional Facility was once also known as "SuperMax."
The facilities of the Pitchess Detention Center in Castaic were once known as Wayside Honor Rancho and was established as a minimum security facility in 1938 where inmates worked in a farm setting. The farm setting for the jail closed in 1992.
Until 2012, the Mira Loma Detention Facility was contracted by U.S. Immigration and Customs Enforcement (ICE) to house non-U.S. citizens detained for violations of U.S. immigration laws. It was the largest detention facility operated by U.S. immigration authorities in California. The facility operated as a regular county jail except that persons housed there were federal immigration detainees. Detainees were citizens of any one of more than sixty different countries and remained in detention at the facility until their cases were decided in U.S. Immigration Courts. ICE personnel assigned to Mira Loma handled all detainee transport, releasing, tracking and removal (or deportation). Los Angeles County Sheriff deputies and custody assistants only worked in immigration courtrooms at the facility.
The Mira Loma Detention Facility in Lancaster was originally established in 1941 in World War II as an airfield and facility for training pilot cadets for the British Royal Air Force and the Royal Canadian Air Force. After the U.S. itself entered the war, the facility became used to train pilots for the U.S. Army Air Force on a contract basis. It was known as Polaris Flight Academy. In 1944, the training school was renamed Mira Loma Flight Academy. It was deactivated in late 1945 and declared by the government to be a surplus facility. The County of Los Angeles later purchased the property.
