West County Detention Facility
West County Detention Facility
County Detention FacilityMailing Address
Contra Costa County Jail - [Facility Code]
[Inmate Full Name / ID]
P.O. Box 96777
Las Vegas, NV 89193
[Inmate Full Name / ID]
P.O. Box 96777
Las Vegas, NV 89193
Physical Address
5535 Giant Highway, Richmond, CA 94806
Governing Agency
Contra Costa County Sheriff's Office
Inmate ID
Inmate ID / Booking Number — Required
Last Verified
September 29, 2026
Facility Mailing and Service Information
Use the current Contra Costa County scanned personal-mail instructions and include the inmate's identifying information. Legal/privileged mail follows separate facility-direct routing.
Source: Official sourceLast verified: September 29, 2026
Verify current photograph size, quantity and content restrictions before mailing.
Source: Official sourceLast verified: September 29, 2026
Verify current publication/package source and content rules before ordering.
Source: Official sourceLast verified: September 29, 2026
Do not send cash with ordinary correspondence. Use the current approved account-deposit method.
Source: Official sourceLast verified: September 29, 2026
Verify current visitor approval, identification, scheduling and facility rules before travel.
Source: Official sourceLast verified: September 29, 2026
How to Address Your Letter
Use the current Contra Costa County scanned personal-mail instructions and include the inmate's identifying information. Legal/privileged mail follows separate facility-direct routing.
About West County Detention Facility
West County Detention Facility is a current Contra Costa County detention facility; routine personal mail is handled through the county's off-site scanning route.