San Joaquin County Jail
San Joaquin County Jail
County JailMailing Address
999 W. Mathews Road, French Camp, CA 95231
Physical Address
999 W. Mathews Road, French Camp, CA 95231
Governing Agency
San Joaquin County Sheriff's Office
Inmate ID
Inmate ID / Booking Number — Required
Last Verified
September 29, 2026
Facility Mailing and Service Information
Verify the person's current custody/placement and identifier before mailing. Use the recipient's full legal name and follow the facility's current correspondence rules.
Source: Official sourceLast verified: September 29, 2026
Verify current photograph size, quantity and content restrictions before mailing.
Source: Official sourceLast verified: September 29, 2026
Verify current publication/package source and content rules before ordering.
Source: Official sourceLast verified: September 29, 2026
Do not send cash with ordinary correspondence. Use the current approved account-deposit method.
Source: Official sourceLast verified: September 29, 2026
Verify current visitor approval, identification, scheduling and facility rules before travel.
Source: Official sourceLast verified: September 29, 2026
How to Address Your Letter
Verify the person's current custody/placement and identifier before mailing. Use the recipient's full legal name and follow the facility's current correspondence rules.
About San Joaquin County Jail
San Joaquin County Jail is the county's principal adult detention facility in French Camp.