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911 Services | Contra Costa County Office of The Sheriff

Report

Resource Name:911 Services | Contra Costa County Office of The Sheriff

address

1850 Muir Road, Martinez, CA 94553

Eligibility

None

Required documents

None

Hours

24 hours daily
911

Voice

·

Main Number

925-655-0000

Voice

·

Administration

925-646-2441

Voice

·

Backdoor Number

Languages

English and Spanish

Application process

Call or visit website; if calling from a cell phone use backdoor number for emergencies or to report suspicious activity.

Fees

None

Service area

Contra Costa County
Provides oversight of county detention facilities, follow-up of felonies and crimes committed in the county, patrol services for unincorporated areas of the county, oversees the Office of Emergency Services, and other related services.

Last Assured

05/22/2025

What's Here

Providing organization

Contra Costa County Office of The Sheriff
Provides oversight of all Office of the Sheriff operations, including Coroner's Office, detention facilities, patrol services for unincorporated Contra Costa County, follow-up of felony and misdemeanor crimes committed in the County, oversees the County's Office of Emergency Services, and other related law enforcement and homeland security services. Also provides drop-off for unused/expired medications.