Demographics
Contra Costa County Demographic Quick Facts
2022 Population Estimate: 1,156,555
source: State of California Department of Finance, E-1 Population Estimates for Cities, County and the State with Annual Percent Change - January 1, 2021 and 2022.
Learn more at the Department of Finance Population Estimate website
2020 Decennial Census Results
On August 12, 2021 the Census Bureau released the first local level 2020 Census data. Initial analysis is provided below. The State Department of Finance has additional detailed tables available.
Visit the State Department of Finance Census 2020 webpage.
Data Profile for all Cities, Towns, and Unincorporated Census Designated Places (PDF)
2020 County Population: 1,165,927
Contra Costa County saw an increase of 116,902 people (10% increase)
Source: 2020 Decennial Census
2020 City Population and Growth Rate
City | 2020 Population | 2010 Population | Growth Rate |
---|---|---|---|
Brentwood city | 64,292 | 51,481 | 19.9% |
Oakley city | 43,357 | 35,432 | 18.3% |
Pittsburg city | 76,416 | 63,264 | 17.2% |
San Ramon city | 84,605 | 72,148 | 14.7% |
Antioch city | 115,291 | 102,372 | 11.2% |
Richmond city | 116,448 | 103,701 | 10.9% |
Orinda city | 19,514 | 17,643 | 9.6% |
San Pablo city | 32,127 | 29,139 | 9.3% |
El Cerrito city | 25,962 | 23,549 | 9.3% |
Walnut Creek city | 70,127 | 64,173 | 8.5% |
Hercules city | 26,016 | 24,060 | 7.5% |
Lafayette city | 25,391 | 23,893 | 5.9% |
Moraga town | 16,870 | 16,016 | 5.1% |
Pleasant Hill city | 34,613 | 33,152 | 4.2% |
Martinez city | 37,287 | 35,824 | 3.9% |
Danville town | 43,582 | 42,039 | 3.5% |
Pinole city | 19,022 | 18,390 | 3.3% |
Concord city | 125,410 | 122,067 | 2.7% |
Clayton city | 11,070 | 10,897 | 1.6% |
2010 Population: 1,049,025
source: 2010 Decennial Census
2020 Countywide Population Estimate: 1,153,561
2020 Unincorporated County Population Estimate: 174,257
Source: California Department of Finance Demographic Research Unit
Explore Department of Finance Population Estimates for Cities, County, and the State
Population Characteristic Data
The Census Bureau's American Community Survey (ACS) provides detailed information about population characteristics. Explore Census ACS Data at data.census.gov
Learn More About ACS data - US Census Bureau's ACS Users Guide
-
Kristine Solseng
Principal PlannerPhone: 925-655-2905
-
Policy Planning
Physical Address
30 Muir Rd
Martinez, CA 94553
Phone: 925-655-2708