Many notable figures came from the area including conservationist John Muir and legendary baseball great Joe DiMaggio. California's first doctor, John Marsh, settled in 1837 on a large land grant that is now called Marsh Creek.
Contra Costa County, California Contra Costa County County seat Martinez Largest city Concord (population and land area) Richmond (total area) Government • Type Council–CAO33 more rows
The County Ordinance requires that you obtain a license for conducting business within the unincorporated areas, - even if your business is located outside our limits or you have a business license from another city.
County seat, Martinez. Created February 18, 1850. The name signifies “opposite coast,” because of its situation opposite San Francisco, in an easterly direction, on San Francisco Bay.
CCHP is the primary managed-care provider for Medi-Cal beneficiaries in Contra Costa and we also manage smaller plans for county employees and IHSS homecare workers. Our members have access to hundreds of family medicine doctors and specialists in our provider networks.
Nortonville, California. Nortonville is an unincorporated ghost town in Contra Costa County, California. It was located on Kirker Creek 5.5 miles (9 km) north-northeast of Mount Diablo, at an elevation of 801 feet (244 m).
The county has a strong economy, with major industries including healthcare, education, and technology. Some of the largest employers in Contra Costa County include Kaiser Permanente, Chevron, and the Mount Diablo Unified School District.
Cities & Communities of Contra Costa Antioch. Brentwood. Clayton. Concord. Town of Danville. El Cerrito. Hercules. Lafayette. Martinez. Town of Moraga. Oakley. Orinda. Pinole. Pittsburg. Pleasant Hill. Richmond. San Pablo. San Ramon. Walnut Creek.
Contra Costa County is a county located in the northern portion of the East Bay region of the San Francisco Bay Area of Northern California. The county seat is Martinez, but the largest city is Concord.