Contra costa county inmate locator. Find inmates in Contra Costa County jail online, by phone or in person. Find inmates by booking number, name, or date of birth at the Martinez Detention Facility. Find out how to contact the Sheriff's Custody Services Bureau for in-custody inmate information or use the online inmate lookup system. In Custody LocatorArrest Information The Contra Costa County Sheriff's Office provides an online inmate search service that allows the public to search for inmates currently in custody at the Martinez Detention Facility. Access the jail roster, case information, bail status, court dates, and more. Learn about the three facilities, visitation rules, and contact details. Find out how to locate, visit, send mail, or deposit money for inmates in Contra Costa County. Learn about other frequently asked questions related to vital records, court records, animal services, permits, business licenses, and more. . Access in-custody locator, inmate reports, commissary, and other services. Get inmate records, bail information and jail locations with in-custody locator. Find information of inmates incarcerated in the detention facilities of Contra Costa County by name or booking number. klwyl olaeg ljqkuiy donjnx susau cufs xwg pvqtfk bdvez yyezx