San Mateo County inmate search and jail information

San Mateo County’s two principal jail facilities are in Redwood City, even though arrests occur throughout the Peninsula and coast. Begin with the Sheriff’s inmate-locator link and verify the identity of any matching person. Maguire Correctional Facility on Bradford Street and Maple Street Correctional Center are distinct facilities, not alternate names for the same building. A police department serving an individual city may have made the arrest while the Sheriff maintains the subsequent custody record. Newly booked people may not have a settled housing assignment immediately.

The county court complex at County Center is close to Maguire, but that proximity should not be used to infer where someone is housed or where release will occur. Maple Street has its own access and visiting arrangements. Save the booking information and check the Superior Court’s case record for the next appearance, assigned department, and any order affecting release. Court notices rather than a general county address determine where to attend. If the person has moved between facilities, confirm the current location before sending correspondence or arranging a visit. Likewise, ask about the actual release point before scheduling transportation; a housing address, a courthouse address, and an authorized payment location can serve different purposes.

How to search for someone in custody

Start with the custody information published by the San Mateo County Sheriff’s Office. Have the person's full legal name and, ideally, a date of birth ready. If an online lookup is available, compare identifying details rather than relying on a name alone. If you obtain a booking number, keep it with your notes for later questions to jail staff, the court, or an attorney.

Official inmate search (external site).

Jail facilities

• Maguire Correctional Facility, 300 Bradford Street, Redwood City, CA 94063
• Maple Street Correctional Center, 1300 Maple Street, Redwood City, CA 94063

Visiting, phone calls and mail

Check the San Mateo Sheriff’s visiting instructions for Maguire or Maple Street as appropriate. Verify visitor registration, available visit format, identification, and restrictions before making plans. A reservation tied to a previous housing assignment may need review after a move. Use the current official communication and mail instructions rather than assuming both facilities use identical procedures.

Court and bail

Criminal cases here are handled by the San Mateo County Superior Court (400 County Center, Redwood City, CA 94063).

Bail and other release conditions should be checked against the active booking and court orders. A payment for one San Mateo case may not clear another hold. Confirm authorized payment handling and the actual release location, especially when the person has moved between Maguire and Maple Street.

Common questions

Official sources and record limitations

This guide links to San Mateo County Sheriff’s Office for custody procedures and San Mateo County Superior Court for court information. A booking record is not a conviction. Recent bookings, transfers, releases and protected records may not appear in a public lookup.