Contra Costa County Jail
California
Martinez Detention Facility
The Contra Costa County Office of the Sheriff runs the Martinez Detention Facility, the main jail, along with the West County Detention Facility in Richmond and the Marsh Creek Detention Facility in Clayton.
- Address
- 1000 Ward Street, Martinez, CA 94553
- Phone
- (925) 655-0000
How to find an inmate
To check whether someone is in custody in Contra Costa County, use the inmate lookup on the Contra Costa County Office of the Sheriff website. You can also call the Sheriff's Office at (925) 655-0000 with the person's full name and date of birth. If the person has been sentenced to state prison, use the CDCR Inmate Locator.
Visitation
Visiting at the Martinez Detention Facility and the other county jails is managed by the Contra Costa County Office of the Sheriff, and the rules differ by facility. Visitors usually need valid photo ID and may need to schedule in advance. Check the Sheriff's website or call the facility to confirm current visiting schedules and rules.
Bail and bond
Bail for people booked into the Martinez Detention Facility is set by the county bail schedule or by a Contra Costa County Superior Court judge. Bail is usually posted at the facility in Martinez or through a licensed bail bond agent. Call the facility to confirm the bail amount and accepted payment methods.
Mail and money
Mail for inmates should include the inmate's full name and booking number and must follow the Sheriff's mail rules for the facility where the person is held. Money can be deposited to inmate accounts through methods the Sheriff's Office approves. Check the Sheriff's website or call the facility to confirm current mail rules and deposit options.
Frequently asked questions
How do I find out if someone is in the Martinez Detention Facility?
Use the inmate lookup on the Contra Costa County Office of the Sheriff website at cocosheriff.org, or call (925) 655-0000.
What is the address of the Martinez Detention Facility?
The facility is at 1000 Ward Street, Martinez, CA 94553.
How do I post bail in Contra Costa County?
Bail can be posted at the detention facility or through a licensed bail bond agent. Call the facility to confirm the amount and payment methods.
Can I send money to an inmate at the Martinez Detention Facility?
Yes, through methods the Sheriff's Office approves. Check the Sheriff's website or call the facility for current options.