Cities & Towns in Contra Costa County, CA

Contra Costa County, county in California, United States. As of 2020 county had an estimated population of 1,152,333 inhabitants. The county was created 174 years ago in 1850. Its county seat is Martinez.

There are 2 city/town in Contra Costa County, CA. The largest city of Contra Costa County is Concord with a population of 128,544. Other cities include and Clayton population 11,527

Concord
Concord

Concord, The third most populous city in Contra Costa County, California.

Clayton
Clayton

Clayton, City in California, United States

Spanning from the shores of San Francisco Bay to the rolling hills of the Diablo Range, Contra Costa County contains a diverse collection of cities and towns. Though considered part of the larger Bay Area, each community within Contra Costa has its own distinct vibe and appeal. Some of the most prominent cities include Richmond, Concord, Antioch, Walnut Creek, and San Ramon.

Contra Costa County is broadly divided into three sub-areas: West County, Central County, and East County. Each sub-area has its own unique features and characteristics that make it worth exploring. Here are some of the cities that you can find in each sub-area:

  • West County: This sub-area includes the cities of El Cerrito, Richmond, San Pablo, Pinole, and Hercules, as well as the unincorporated communities of Kensington, El Sobrante, North Richmond, Rodeo, Crockett, and Port Costa. West County is known for its industrial heritage, diverse population, and scenic waterfront. Some of the attractions in West County are the Rosie the Riveter WWII Home Front National Historical Park, the Richmond Art Center, the Point Pinole Regional Shoreline, and the Crockett Hills Regional Park.
  • Central County: This sub-area is further divided into three areas: Lamorinda, Walnut Creek/Concord/Clayton, and San Ramon Valley. Central County is the most populous and affluent sub-area of Contra Costa County, with many suburban communities, shopping centers, and business parks. Some of the attractions in Central County are the Mount Diablo State Park, the Lindsay Wildlife Experience, the Lesher Center for the Arts, and the Blackhawk Museum.
  • East County: This sub-area includes the cities of Antioch, Brentwood, Oakley, and Pittsburg, as well as the unincorporated communities of Bethel Island, Byron, Discovery Bay, and Knightsen. East County is the fastest-growing sub-area of Contra Costa County, with many new developments and agricultural lands. Some of the attractions in East County are the Black Diamond Mines Regional Preserve, the John Marsh House, the Big Break Regional Shoreline, and the Brentwood Farmers’ Market.

Richmond sits along the waterfront and is known for its heavy industry past. Inland, Concord provides accessibility to entertainment and retail options. Bordering the Sacramento-San Joaquin River Delta, Antioch offers recreational water activities. Walnut Creek serves as a financial hub while San Ramon boasts upscale residential neighborhoods.

Beyond these larger municipalities, Contra Costa County also contains tranquil bedroom communities like Lafayette, eclectic college towns like Moraga, and historic spots like the city of Martinez. While all within commuting distance of San Francisco, the cities and towns of Contra Costa County provide a tranquil escape from big city life. Each area offers its own blend of natural beauty, small-town spirit, and modern amenities.

 

All Contra Costa County Cities (Aphebetical)

List of cities, towns, neighborhoods & other populated places in Contra Costa County.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z all
City Name Title Population
Clayton City in California, United States 11,527
Concord The third most populous city in Contra Costa County, California. 128,544
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County Cities on Map (2)