The County of Contra Costa, California was incorporated in 1850 as one of the original 27 counties of the State of California, with the City of Martinez as the County Seat.
Contra Costa County is home to more than one million residents. Comprised of 19 cities and many established communities in the unincorporated area, it is the ninth most populous county in the state.
The most notable landmark in the county is Mount Diablo, rising 3,849 feet at the northern end of the Diablo Range. It is the centerpiece of Mt. Diablo State Park, one of many recreation areas residents and visitors can enjoy. The East Bay Regional Park District is comprised of more than 100,000 acres within 65 parks, including more than 1,200 miles of trails.
Our Mission: Contra Costa County is dedicated to providing public services which improve the quality of life of our residents and the economic viability of our businesses.
Our Vision: Contra Costa County is recognized as a world-class service organization where innovation and partnerships merge to enable our residents to enjoy a safe, healthy and prosperous life.
Our Values: Contra Costa County serves people, businesses and communities. Our organization and each one of our employees value:
- Clients and communities
- Accountability
- Partnerships
- Fiscal prudence
- Quality Services
- Organizational excellence
