US Census Data

Contra Costa County vs Ventura County

A side-by-side comparison of Contra Costa County and Ventura County: population, income, housing, and more.

Contra Costa County and Ventura County are counties in California. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Contra Costa County has the higher population (1,161,458 vs 838,259 in Ventura County). Contra Costa County has the higher median household income ($125,727 vs $107,327 in Ventura County). Contra Costa County has the higher median home value ($830,800 vs $768,400 in Ventura County).

Population, income & housing

Contra Costa CountyVentura County
Population1,161,458838,259
Median age40.3 yrs39.4 yrs
Median household income$125,727$107,327
Median home value$830,800$768,400
Median gross rent$2,322$2,248
Housing units426,585294,651
Homeownership rate67.7%64.2%
Bachelor's degree or higher44.9%35.7%
Unemployment rate5.9%5.5%

Trends (ACS 5-year, 2019–2023)

Contra Costa CountyVentura County
Population1,142,251 → 1,161,458 (+1.7%)847,263 → 838,259 (-1.1%)
Median household income$99,716 → $125,727 (+26.1%)$88,131 → $107,327 (+21.8%)
Median home value$625,800 → $830,800 (+32.8%)$588,400 → $768,400 (+30.6%)
Median gross rent$1,819 → $2,322 (+27.7%)$1,776 → $2,248 (+26.6%)

Contra Costa County

Population
1,142,2511,161,458
Median household income
$99,716$125,727
Median home value
$625,800$830,800
Median gross rent
$1,819$2,322

Ventura County

Population
847,263838,259
Median household income
$88,131$107,327
Median home value
$588,400$768,400
Median gross rent
$1,776$2,248

Age & race/ethnicity

Age distribution (share)

Contra Costa CountyVentura County
Under 55.4%5.4%
5 to 1716.8%16.8%
18 to 248.0%8.9%
25 to 3412.3%13.2%
35 to 4414.0%12.8%
45 to 5413.7%12.8%
55 to 6413.2%13.3%
65 to 749.8%9.9%
75 and over6.9%7.0%

Race & ethnicity (share)

Contra Costa CountyVentura County
White (non-Hispanic)39.3%42.9%
Black or African American8.2%1.7%
American Indian & Alaska Native0.2%0.2%
Asian18.3%7.1%
Native Hawaiian & Pacific Islander0.4%0.2%
Some other race0.7%0.5%
Two or more races5.8%3.8%
Hispanic or Latino27.3%43.8%

Educational attainment (age 25+)

Share of adults 25+

Contra Costa CountyVentura County
No high school diploma10.4%14.7%
High school graduate17.7%19.5%
Some college or associate's27.0%30.2%
Bachelor's degree27.4%22.2%
Graduate or professional degree17.5%13.5%

Commute to work

How workers get to work (share)

Contra Costa CountyVentura County
Drove alone60.8%72.3%
Carpooled9.7%9.9%
Public transit6.5%0.7%
Walked1.8%1.6%
Bicycle0.4%0.4%
Worked from home19.2%14.1%
Other means1.6%1.0%

Housing

Units in structure (share)

Contra Costa CountyVentura County
1-unit, detached67.5%62.9%
1-unit, attached8.7%11.6%
2 to 4 units5.8%5.9%
5 to 19 units6.6%8.4%
20 or more units10.0%7.2%
Mobile home & other1.6%4.1%

Poverty & households

Contra Costa CountyVentura County
Poverty rate8.3%9.0%
Average household size2.792.97
Mean commute (minutes)3626
Median year structure built19781977

Full profiles

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