This page helps you use an inmate locator in Contra Costa County, California, and understand what to do after you find a custody record. It covers the Contra Costa County Office of the Sheriff In Custody Locator, inmate reports, visiting, mail, money, and contact options.
The Sheriff’s online locator is the main place to start for current in-custody information. Because custody details can change as a case moves through the judicial process, verify names, booking numbers, and facility details before planning a visit or sending mail.
Contra Costa County In Custody Locator
Use the Sheriff’s search the In Custody Locator to look for an arrested or in-custody person. The locator requires both name fields before you submit the search.
- First name
- Last name
Enter the name as completely as possible, then review the returned custody information carefully.
- Open the In Custody Locator.
- Enter both the first name and last name.
- Select the Find Inmate button.
- Use the most recent details shown by the Sheriff’s Office to confirm the person’s custody status.
If a name does not appear, contact the local jurisdiction for information rather than assuming the person is not in custody.
Inmate reports and custody status updates
The Sheriff’s inmate information area also provides access to inmate reports. The reports page requires a report selection before information can be viewed.
For custody status changes and criminal case information, the Sheriff’s locator directs users to California VINE. Use that service when you need notifications after an initial custody search.
Detention facilities and visiting hours
Contra Costa County custody services cover three detention facilities. Social visits are scheduled only by inmates, and visitors should read the Sheriff’s visiting rules and hours before going to a facility.
The table below summarizes the facility locations, phone numbers, and posted visiting hours.
| Facility | Address and phone | Visiting hours |
|---|---|---|
| Martinez Detention Facility | 901 Court Street, Martinez, CA 94553 (925) 335-4600 |
Monday, Tuesday, Wednesday, Saturday, and Sunday: 8:30 a.m. - 11:00 a.m.; 1:00 p.m. - 5:00 p.m.; 7:30 p.m. - 9:00 p.m. Thursday: 8:30 a.m. - 11:00 a.m.; 1:00 p.m. - 5:00 p.m. Friday: 7:30 p.m. - 9:00 p.m. |
| West County Detention Facility | 5555 Giant Highway, Richmond, CA 94806 (510) 262-4200 |
Monday - Thursday: 7:00 a.m.; 8:00 a.m.; 9:00 a.m.; 10:00 a.m.; 11:00 a.m.; 1:00 p.m.; 2:00 p.m. Saturday and Sunday: 7:00 a.m.; 8:00 a.m.; 9:00 a.m.; 10:00 a.m.; 11:00 a.m.; 1:00 p.m.; 2:00 p.m.; 3:00 p.m.; 4:00 p.m. |
| Marsh Creek Detention Facility | 12000 Marsh Creek Road, Clayton, CA 94517 (925) 646-5700 |
Saturday and Sunday: 1:00 p.m.; 2:00 p.m. |
Martinez visits allow up to four visitors at one time. West County visits allow up to three visitors at one time. Scheduled visitors must arrive within the posted timing rules for the facility.
Money, commissary, and inmate mail
Depositing money
The Sheriff’s deposit money instructions state that money orders, cashier’s checks, and traveler’s checks must be made out to the Office of the Sheriff, with the inmate’s name and booking number on the front. Personal checks or cash are returned to the sender.
Credit and debit card deposits are accepted through kiosks in the Martinez and West County Detention Facility lobbies, by telephone at 1-866-0460, or through the listed deposit website.
Commissary
The Sheriff’s commissary information directs users to the MyCarePack service for sending commissary items to an inmate housed in Contra Costa County jails.
Non-privileged mail
The Sheriff’s mail instructions route incoming non-privileged mail through Pigeonly Corrections’ processing center. Use the inmate’s name, booking number, facility name, and facility mailing code. The mailing-only address is PO Box 96777, Las Vegas, NV 89193.
Use these facility mailing codes for non-privileged mail.
| Facility | Mailing code |
|---|---|
| Martinez Detention Facility | 1117 |
| West County Detention Facility | 1118 |
| Marsh Creek Detention Facility | 1119 |
Privileged mail and official documents continue to go directly to the detention facility. Attorneys must use the Pigeonly Corrections authentication process for legal mail.
Contra Costa County inmate information contacts
Use these Sheriff’s Office and custody contacts for locator issues, facility questions, visiting, records, or general custody information.
-
Contra Costa County Office of the Sheriff, 1850 Muir Road, Martinez, CA 94553
Office: (925) 655-0000
Dispatch: (925) 646-2441
TTY: 711 -
Custody Services Administration
Phone: (925) 335-4644
TTY: 711 -
Martinez Detention Facility, 901 Court Street, Martinez, CA 94553
Phone: (925) 335-4600 -
West County Detention Facility, 5555 Giant Highway, Richmond, CA 94806
Phone: (510) 262-4200 -
Marsh Creek Detention Facility, 12000 Marsh Creek Road, Clayton, CA 94517
Phone: (925) 646-5700 -
Records & ID Unit
Phone: (925) 335-1570
TTY: 711
Common questions
How do I search for someone in custody in Contra Costa County?
Use the Sheriff’s In Custody Locator and enter both the first name and last name before selecting the Find Inmate button.
Why might a person not appear in the locator?
The Sheriff’s Office notes that custody information can change as a person moves through the judicial process. If a name does not appear, contact the local jurisdiction for information.
Can I register for custody status changes?
Yes. The Sheriff’s locator directs users to California VINE for custody status changes and criminal case information.
Who schedules social visits with inmates?
Social visits are scheduled only by inmates. Visitors should follow the facility’s visiting rules, registration process, and posted visiting hours.
Where do I send non-privileged inmate mail?
Non-privileged mail is processed through Pigeonly Corrections. Include the inmate’s name, booking number, facility name, and the correct facility mailing code, then send it to PO Box 96777, Las Vegas, NV 89193.
Can I send cash to an inmate by mail?
No. Personal checks or cash are returned to the sender. Money orders, cashier’s checks, and traveler’s checks must be made out to the Office of the Sheriff and include the inmate’s name and booking number.