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Find Someone at Folsom State Prison

Folsom is California's second-oldest prison, built from granite quarried on site, and it shares an 882-acre property with the separate CSP-Sacramento. Check the result reads Folsom State Prison, then start sending photos and letters.

Overview

Folsom State Prison is California’s second-oldest prison, built from granite quarried on site and holding its first incarcerated people in 1880. It sits near Represa on an 882-acre property it shares with a completely separate prison, California State Prison, Sacramento, so start at CDCR’s statewide CIRIS locator at ciris.mt.cdcr.ca.gov and confirm your result reads Folsom State Prison before you act.

Quick Facts

  • 1 CIRIS at ciris.mt.cdcr.ca.gov is the one tool that confirms someone is held at Folsom State Prison. There is no separate Folsom-run inmate lookup.
  • 2 Folsom shares its 882-acre grounds near Represa with a separate prison, California State Prison, Sacramento. A CIRIS record names one or the other, so read it closely before you act.
  • 3 A CIRIS record points to the person's CDCR number and current institution. Confirm that CDCR number before you mail Folsom's shared box, P.O. Box 715071.
  • 4 CIRIS lists people in CDCR state custody only. Someone in the Sacramento County jail, in federal custody, or already on parole won't show up here.
  • 5 A new commitment or a transfer can take a few days to post in CIRIS, so recheck Folsom before you drive out to Represa or send a deposit.

Families Also Ask

6 of 6 questions

Q

How do I find someone at Folsom State Prison?

Use CIRIS, CDCR's statewide inmate search tool, at ciris.mt.cdcr.ca.gov. Search by name or CDCR number, then confirm the result lists Folsom State Prison and not the neighboring California State Prison, Sacramento.

Inmate Search
Q

Why can't I find someone I know is at Folsom State Prison?

The most common reasons are a booking that hasn't posted yet, a release or parole, a transfer to another institution, or a name that doesn't match CDCR's spelling. Try name variations first, then call CDCR's Identification Unit at (916) 445-6713 with a date of birth.

Inmate Search
Q

How do I know my CIRIS result is Folsom State Prison and not CSP-Sacramento?

Read the institution name exactly as written. Folsom State Prison, known locally as 'Old Folsom,' and California State Prison, Sacramento, nicknamed 'New Folsom,' sit on the same grounds near Represa but run as two separate prisons with their own wardens and rules. Make sure your result reads Folsom State Prison before you visit, mail, or send money. A result naming California State Prison, Sacramento points to a different institution.

Inmate Search
Q

Can CIRIS tell me if someone is in Folsom's Minimum Support Facility?

CIRIS confirms the institution, Folsom State Prison, but it may not spell out the Minimum Support Facility, which holds Level I men outside the main perimeter. If your result only says Folsom, ask the person directly which facility they're in before you plan a visit.

Inmate Search
Q

Do I need a CDCR number to search Folsom?

No. A full legal name is enough to start. The CDCR number makes the match more certain, and you'll need it anyway for the visitor questionnaire, for mail, and for deposits once you've confirmed the person is at Folsom.

Inmate Search
Q

What happens if he's transferred out of Folsom State Prison?

CIRIS updates to show his new institution, though the change can lag the actual move by a few days. Recheck it before you send money, mail a letter, or travel, since a deposit or letter sent to Folsom after he leaves has to be reprocessed at the new prison.

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All information on this page comes directly from official government and facility sources. How we verify information › Last verified July 20, 2026.