The Contra Costa County jail roster is a public resource that lists individuals currently held in county jail facilities in California. ContraCostaCourt.us can help you find publicly available information about current and recent inmates. You can also access jail roster information through the Contra Costa County Sheriff's Office website, by calling the jail directly, or by visiting in person. A jail roster search lets the public confirm whether someone is in custody, view current charges, and find booking details. The Contra Costa County Office of the Sheriff maintains the roster, which is updated regularly and hosted on the Sheriff's Office website. It serves as a transparency tool, giving community members direct access to custody information without needing to file a formal records request.
Search Current Inmates in Contra Costa Jail
There are several ways to look up someone currently held in a Contra Costa County jail facility.
Online Search
- Visit ContraCostaCourt.us to search for publicly available court record information tied to current or recent inmates.
- Go to the Contra Costa County Sheriff's Office website and navigate to the inmate locator or jail roster page. The roster is typically presented as a browsable list of current inmates. If a search field is available, enter the inmate's last name. If only a browsable list is provided, use your browser's built-in find function (Ctrl+F or Cmd+F) to locate a specific name.
- Review the results. Each listing generally shows the inmate's name, booking number, charges, booking date, and housing facility.
To begin a search, you will need:
- The individual's full legal name (first and last)
- A booking number, if known (this speeds up the search considerably)
Juvenile offenders are not listed on the public jail roster.
By Phone
Call the Contra Costa County Sheriff's Office main jail line to ask about a specific individual's custody status. Be prepared to provide the person's full legal name and date of birth. Non-emergency dispatch can also assist with general inquiries.
In Person
You can visit the jail lobby or public information window at the Contra Costa County Detention Facility in Martinez to request inmate information.
Contra Costa County Detention Facility
Lobby hours for public inquiries are generally during regular business hours on weekdays. Call ahead to confirm current hours, as they may change.
Find Contra Costa Jail Booking Records Online
A booking record is created each time an individual is processed into the Contra Costa County jail. During booking, jail staff collect personal information and document the circumstances of the arrest. The record generated at that point typically includes:
- A unique booking number
- Date and time of booking
- Charges at the time of arrest
- Arresting agency (e.g., local police department, Sheriff's Office, California Highway Patrol)
- Bail amount, if applicable
- Physical description and photograph
You can access booking records in several ways:
- Jail roster: The Sheriff's Office online roster displays booking details for individuals currently in custody.
- Court records: Once charges are filed, booking information often becomes part of the criminal case record. You can research criminal court records through the Superior Court of Contra Costa County's criminal records portal.
- Public records request: For records not available online, you can submit a request through the county's public records request process or use the Public Records Act Request Form. Under the California Public Records Act, booking logs are generally considered public records, though certain details — such as medical or juvenile information — are restricted.
If the person has been transferred to state prison, use the California Incarcerated Records & Information Search (CIRIS) maintained by the California Department of Corrections and Rehabilitation.
Search the Contra Costa Jail Roster by Last Name or Booking Number
The Contra Costa jail roster supports two primary search approaches:
Search by Last Name
- Enter the individual's last name in the search field (if available) or use your browser's find function on the roster page.
- Optionally add a first name to narrow results, especially for common surnames.
- Check spelling carefully — even a small typo can cause a valid record to be missed.
Search by Booking Number
- If you have a booking number (often provided by the arresting agency or a bail bondsman), enter it directly.
- This returns a single, specific record and is the fastest way to locate an inmate.
Tips for Better Results
- Use the individual's full legal name, not a nickname or alias.
- If the roster supports partial name searches, try entering just the first few letters of the last name if you are unsure of the exact spelling.
- Double-check for hyphenated last names or alternate spellings.
If No Results Appear
- The person may have already been released or transferred.
- There could be a delay between arrest and the record appearing on the roster.
- The name may be spelled differently in the system than expected.
- Call the jail at (925) 335-8700 to verify custody status if the online roster does not return results.
- For criminal case information after charges are filed, check the Superior Court of Contra Costa County public portal.
Jail Roster Updates and Search Limitations in Contra Costa
How Often Is the Roster Updated?
The Contra Costa County jail roster is generally updated on a frequent basis throughout the day, though it may not reflect changes in real time. New bookings, releases, and transfers are typically entered into the system as they are processed by jail staff, but there can be a lag between the event and the roster update — sometimes a few hours.
Known Limitations
| Limitation | What It Means for Users |
|---|---|
| Booking-to-roster delay | A recently arrested person may not appear on the roster for several hours after being brought to the facility. |
| Release timing | Once an inmate is released, their record is typically removed from the roster. This can happen before family members check the site. |
| Data entry lags | Charge updates, bail changes, or transfers may not be reflected immediately. |
| Current custody only | The roster shows who is in jail right now. It is not a historical archive of all past bookings. |
| Juvenile exclusions | Minors are never listed on the public roster. |
If you need older booking records or information about someone no longer in custody, contact the Sheriff's Office directly or submit a public records request to the appropriate county department. For individuals who have been sentenced to state prison, the California Department of Corrections and Rehabilitation maintains a separate inmate search tool.