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Contra Costa County (/ ˌ k ɒ n t r ə ˈ k ɒ s t ə / ⓘ; Contra Costa, Spanish for 'Opposite Coast') is a county located in the U.S. state of California, in the East Bay of the San Francisco Bay Area. As of the 2020 United States Census, the population was 1,165,927. [6] The county seat is Martinez.
5 days ago · County Launches Expanded Basic Health Care Coverage for Residents who are Uninsured and Undocumented. Posted on September 6, 2024. Contra Costa Health is now offering affordable health care coverage to uninsured county residents wh...
Concord (/ ˈ k ɒ ŋ k ər d / KON-kerd) [10] is the most populous city in Contra Costa County, California, United States. According to an estimate completed by the United States Census Bureau, the city had a population of 129,295 in 2019, [ 11 ] making it the eighth most populous city in the San Francisco Bay Area .
In 2022, Contra Costa County, CA had a population of 1.16M people with a median age of 40.1 and a median household income of $120,020. Between 2021 and 2022 the population of Contra Costa County, CA grew from 1.16M to 1.16M, a 0.0865% increase and its median household income grew from $110,455 to $120,020, a 8.66% increase.
San Ramon (Spanish: San Ramón, meaning "Saint Raymond") is a city in Contra Costa County, California, United States, located within the San Ramon Valley, and 34 miles (55 km) east of San Francisco. San Ramon's population was 84,605 per the 2020 census, [9] making it the 4th largest city in Contra Costa County, behind Concord, Richmond and Antioch.
Contra Costa County is home to 19 cities and numerous unincorporated communities. See the County Supervisorial Districts map. For more information about local cities, visit the links below.
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Demographics. Contra Costa County Demographic Quick Facts. US Census Bureau Contra Costa County Profile. View Contra Costa County's Profile. 2024 Population Estimate: 1,146,626. 2024 Unincorporated County Population Estimate: 174,289. source: State of California Department of Finance, E-1 Population Estimates for Cities, County and the State.
