Find California State Prison Prisoners

California State Prison Overview

CDCR's facility page for California State Prison, Los Angeles County identifies the Lancaster institution as the first and only state prison in Los Angeles County. It is operated by the California Department of Corrections and Rehabilitation, not by LASD. That distinction controls every lookup question. A person in Men's Central Jail, Twin Towers, CRDF, Pitchess, or the Inmate Reception Center is searched through the county jail system. A sentenced prisoner transferred to this institution is searched through CDCR.

The research describes California State Prison, Los Angeles County as a male prison with Level I, III, and IV housing. It holds minimum and maximum security inmates, plus people in medical and mental-health treatment tracks. CDCR also identifies the prison as a medical hub for Enhanced Outpatient and EOP Administrative Segregation care. The institution includes CCCMS and EOP mental-health services, a standalone Administrative Segregation Unit, and a Correctional Treatment Center.

CDCR Prisoner Lookup

The correct locator is California Incarcerated Records and Information Search, often called CIRIS. It searches people in CDCR custody by name or CDCR number. CA.gov describes CIRIS results as including the incarcerated person's name, CDCR number, age, current location, commitment counties, admission date, and Board of Parole Hearing dates and outcomes. LASD's Inmate Information Center does not become the main locator after a Los Angeles County defendant is received into CDCR custody.

The captured CDCR CIRIS search screen shows the statewide form used for sentenced-prisoner lookup.

The search fields are useful when a Los Angeles County case has a common name, because a CDCR number or commitment county can narrow the match.

1. Open CIRIS and choose name search or CDCR number search.
2. Enter the CDCR number if known. For a name search, enter the last name and add first name, middle name, age, or commitment county when available.
3. Check the current location field for California State Prison, Los Angeles County or another CDCR institution.
4. Review admission and parole-hearing information only as CDCR locator data. Court disposition still comes from the court record.

County Jail or State Prison

Los Angeles County inmate searches often fail when the wrong custody system is used. County jail custody covers booking, pretrial detention, short county sentences, holds, release processing, and movement among LASD facilities. State prison custody starts after a sentence and CDCR reception or classification. California State Prison, Los Angeles County is part of that second system.

California State Prison Visits

CDCR prison visitation is different from LASD jail visitation. The research notes that state prison visits require CDCR approval and CDCR scheduling rules. A county jail visitor may be dealing with short-term booking or housing limits, while a state-prison visitor must follow institution rules, approval status, and any current CDCR restrictions. The official CDCR facility and visiting pages should be checked before travel because schedules can change with housing status, security needs, medical operations, or statewide rules.

Visitors should confirm whether the person is in Facility A, B, C, D, ASU, CTC, or Minimum Support Facility housing before relying on a mailing or visiting assumption. A locator match proves CDCR custody, but it may not explain every temporary restriction.

Prison Mail and Money

CDCR mail at California State Prison, Los Angeles County uses facility-specific inmate housing addresses rather than the LASD central inmate mail address. The research states that mail addresses vary by Facility A or ASU, B, C, D, and the Minimum Support Facility. Include the incarcerated person's name, CDCR number, and last known housing. That CDCR number is important because Los Angeles County booking numbers do not serve the same role inside state prison.

LAC Prison Programs

California State Prison, Los Angeles County has more than general housing. CDCR material in the research describes a reentry hub and work or education programs that include commercial plumbing, commercial painting, masonry, computer literacy, and Facility C Re-entry. It also notes PIA laundry, soap, and manufacturing operations. These details help explain why the institution appears in a Los Angeles County inmate-population project even though it is not part of the county jail system.

ASU

Administrative Segregation Unit, a higher-control housing unit for security or management reasons.

CTC

Correctional Treatment Center, a medical-care setting inside the prison system.

EOP

Enhanced Outpatient Program, a CDCR mental-health level of care.

CCCMS

Correctional Clinical Case Management System, another CDCR mental-health care level.

Programs and housing do not change the locator path. Even if the commitment started with a Los Angeles County jail case, the search route remains CDCR CIRIS once CDCR has custody.

Records After Transfer

Several records can exist for the same person. LASD may have a booking or release record from the county jail stage. Los Angeles Superior Court holds case filings and final disposition. CDCR holds the current prison locator record and prison custody information. If a reader needs old proof that the person was in county custody before transfer, LASD Records and Identification Bureau may be the correct path. If the question is where the person is housed now as a sentenced prisoner, CIRIS is the better starting point.

For a broader county custody search before sentencing, the Los Angeles County jail inmate records page explains the LASD roster path. California State Prison, Los Angeles County should be treated as a state-prison page, not as a branch of the county jail roster.