County

Contra Costa County

California

1,165,012 population$127,229 median income909,012 voting age0 active campaigns

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Officials Representing Contra Costa County

Congressional District Coverage

Contra Costa County is 68% in CA Congressional District 10, 27% in CA Congressional District 8, and 5% across 1 other district.

Area-weighted; population-weighted shares may differ in counties with large urban/rural density splits.

Median Income

$127,229

↑ 28%vs $99,122

Bachelor's+

45.2%

↑ 22%vs 37.1%

Under 18

22.0%

≈ California

Owner-Occupied

68.0%

↑ 22%vs 55.9%

White (non-Hispanic)

41.1%

↔ 4%vs 39.7%

Demographics

American Community Survey 2024 5-year estimates

Race & Ethnicity

White41.1%

Hispanic/Latino27.6%

Black8.3%

Asian18.9%

Two or More16.4%

Other15.4%

Income & Economy

Median Household Income$127,229

Per Capita Income$62,927

Poverty Rate8.4%

Unemployment6.5%

Education

High School+89.6%

Bachelor's+45.2%

Housing

Median Home Value$866,800

Median Rent$2,375

Owner-Occupied68.0%

Health Insurance

Uninsured4.6%

Age Distribution

Under 1822.0%

65 and Over17.1%

Median Age40.5

Overlapping Divisions