Contra Costa County in California operates 4 jail facilities to serve the local criminal justice system. Below you will find detailed information about each facility, including addresses, contact numbers, and visiting hours.
Martinez Detention Facility (Main Jail)
The Martinez Detention Facility is one of the jail facilities serving Contra Costa County, California.
This main jail has a capacity of approximately 695 inmates.
Contact Information
The facility is located at 1000 Ward Street, Martinez, CA 94553.
For general inquiries or to verify inmate information, you can contact the jail directly at (925) 335-4600.
Additional information and online services may be available through their official website.
Visiting Hours & Visitation Policy
Visiting hours at Martinez Detention Facility are available during weekdays from Varies by housing unit; typically 8:00 AM - 9:00 PM and weekends from Varies by housing unit; typically 8:00 AM - 9:00 PM.
Important: All visits must be scheduled 24 hours in advance. Visitors must arrive 30 minutes early.
West County Detention Facility (Branch Facility)
The West County Detention Facility is one of the jail facilities serving Contra Costa County, California.
This branch facility has a capacity of approximately 1,096 inmates.
Contact Information
The facility is located at 5555 Giant Highway, Richmond, CA 94806.
For general inquiries or to verify inmate information, you can contact the jail directly at (510) 262-4200.
Additional information and online services may be available through their official website.
Visiting Hours & Visitation Policy
Visiting hours at West County Detention Facility are available during weekdays from Varies by housing unit; typically 8:00 AM - 9:00 PM and weekends from Varies by housing unit; typically 8:00 AM - 9:00 PM.
Important: Facility houses medium security male and female inmates. Appointments required.
Marsh Creek Detention Facility (Minimum Security)
The Marsh Creek Detention Facility is one of the jail facilities serving Contra Costa County, California.
This minimum security has a capacity of approximately 188 inmates.
Contact Information
The facility is located at 12000 Marsh Creek Road, Clayton, CA 94517.
For general inquiries or to verify inmate information, you can contact the jail directly at (925) 646-5700.
Additional information and online services may be available through their official website.
Visiting Hours & Visitation Policy
Visiting hours are available during weekends from Saturdays and Sundays only.
Important: Minimum security facility for sentenced inmates. Check official site for specific time slots based on last name.
John A. Davis Juvenile Hall (Juvenile Detention)
The John A. Davis Juvenile Hall is one of the jail facilities serving Contra Costa County, California.
This juvenile detention has a capacity of approximately 290 inmates.
Contact Information
The facility is located at 202 Glacier Drive, Martinez, CA 94553.
For general inquiries or to verify inmate information, you can contact the jail directly at (925) 957-2700.
Additional information and online services may be available through their official website.
Visiting Hours & Visitation Policy
Visiting hours at John A. Davis Juvenile Hall are available during weekdays from Varies by unit and weekends from Varies by unit.
Important: Visiting is restricted to parents, guardians, or legal custodians only.
