Martinez Detention Facility

Martinez Detention Facility runs visits in scheduled blocks posted on the facility's visiting page—check that schedule before you travel. You must register and be admitted no later than 30 minutes before a block ends, and registration opens shortly before each block starts. Up to four visitors can see an inmate at one time. Social visits are scheduled only by the inmate, not by outside visitors. Visits can be restricted or suspended by order of the Facility Commander or through formal disciplinary action, and visitors may be excluded for prior misconduct. The Office of the Sheriff may video-record visiting areas (except for confidential attorney consultations), so follow posted rules and staff directions during your visit.

Sending mail to someone at Martinez Detention Facility is straightforward, but expect security screening. The facility delivers all legitimate mail to and from incarcerated people without undue delay, following Detention Division security regulations. Policies for inmate correspondence are available to inmates and staff and reviewed annually. Incoming and outgoing mail is typically screened for contraband. Legal mail often receives special handling during inspections, with limits on reading during those checks. To avoid delays, address your envelope clearly with the person's full booked name and required identifier, include your return address, and avoid items that are difficult to inspect.

Martinez Detention Facility accepts mailed funds only as money orders or cashier's checks. Don't mail cash, and skip personal checks—those get returned to the sender. Money orders, cashier's checks, and traveler's checks must be made payable to the Office of the Sheriff and include the inmate's full name and booking number. If it isn't filled out correctly, it may be sealed in the inmate's property instead of being credited. Credit and debit card deposits aren't accepted by mail. To use a card, deposit through the lobby kiosks at the Martinez and West County Detention Facilities, by telephone at 1-866-0460, or online at www.smartdeposit.com. Double-check the inmate's name and booking/facility ID before sending anything to avoid delays.

For general questions, contact Martinez Detention Facility at 901 Court Street, Martinez, CA 94553 or call the main line at (925) 335-4600. Need inmate records, release paperwork, or related services? You'll usually get faster answers through the Records & ID Unit at 2530 Arnold Drive, Suite 170, Martinez, open Monday–Friday, 8 AM–5 PM. That office lists a phone at (925) 335-1570, fax (925) 335-1588, and email recordsinfo@so.cccounty.us, plus a separate inmate information number: (925) 646-4493. Bring valid government-issued ID—DMV renewal paper receipts aren't accepted. The unit notes a ten-day response window and accepts payment by cash (exact change) or check. If they can't resolve your issue, use the correct specialized contact channel for follow-up.