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COUNTY · 2020 ACS

Contra Costa County

California · 1,165,927 residents · 716.896 sq mi
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The short version

Contra Costa County is significantly wealthier than the US average, with a median household income of $103,997. Population has grown 23% since 2000. Median home value has more than doubled since 2000, reaching $655,500. Households here earn about 32% more than the California median.

At a glance
Wealthier
above the US median
US median: $66,278
Mid-age
median age 40.1
US median: 38.8
More educated
43% hold a bachelor's degree
US average: 33%
Less affordable
home values up 72%, inflation adjusted
US median home: $265,253
Section 01

Population & growth

Total population
1,165,927
+23%since 2000
from 948,816 in 2000
1990 – 2025
Population density
1,626 / sq mi
+23%since 2000
from 1,324 / sq mi in 2000
US average: 280
Median age
40.1
+10%since 2000
from 36.4 in 2000
US average: 38.8
Population, 1990 – 2024
768K876K985K1.1M1.2M1990201020202024Contra Costa County
20241.2M
1990201020202024
Section 02

Income & economy

Median household income
$103,997
+9%inflation adjusted, since 2000
from $63,675 in 2000
US average: $66,278
1990 – 2024
Per capita income
$50,118
+64%since 2000
from $30,615 in 2000
US average: $35,364
Households earning $100K+
64.1%
+12.5 ptssince 2009
from 51.6% in 2009
US average: 43.9%
Poverty rate
8.2%
+0.5 ptssince 2000
from 7.6% in 2000
US average: 12.8%
Workforce by industry, 2020
Information10%
US avg: 11.1%
Other services8%
US avg: 6.6%
Wholesale trade7.2%
US avg: 6.7%
Retail trade6.6%
US avg: 10%
Public administration5.5%
US avg: 4.7%
Finance & insurance5.4%
US avg: 5.5%
Professional, scientific, technical4.4%
US avg: 4.7%
Arts, entertainment, food2.5%
US avg: 2%
Transportation & warehousing2.3%
US avg: 2.5%
Education & health services1%
US avg: 0.8%
Agriculture, forestry, fishing0.6%
US avg: 1.7%
Construction0.5%
US avg: 1.2%
Manufacturing0.1%
US avg: 0.5%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$655,500
+72%inflation adjusted, since 2000
from $253,800 in 2000
US average: $265,253
1990 – 2024
Median gross rent
$1,928
+43%inflation adjusted, since 2000
from $898 in 2000
US average: $1,124
Owner-occupied
65.6%
−3.7 ptssince 2000
from 69.3% in 2000
34.4% rent
Afford Score
6.3
+58%since 2000
from 4.0 in 2000
1990 – 2024
RELATED:See current rent listings in Contra Costa County on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic57.9%(549,409)
Black9.2%(86,851)
Hispanic / Latino17.7%(167,776)
Asian10.8%(102,681)
Other0%
Diversity Score72.1%(683,869)
Segregation Score0%
2020
White, non-Hispanic39.1%(455,421)
Black8.4%(97,994)
Hispanic / Latino27%(314,900)
Asian18.4%(214,520)
Other6.2%(72,625)
Diversity Score90.6%(1,056,275)
Segregation Score41.1%(479,467)
Diversity Score
91
+26%since 2000
from 72 in 2000
1990 – 2024
Segregation Score
41
Section 05

Education

Bachelor's degree or higher
43.3%
+8.3 ptssince 2000
from 35.0% in 2000
US average: 32.9%
High school or higher
89.9%
+3.0 ptssince 2000
from 86.9% in 2000
US average: 88.5%
Graduate degree
16.6%
+4.4 ptssince 2000
from 12.2% in 2000
US average: 12.7%
Section 06

Commute & transportation

Average commute
38.5 min
+43%since 2000
from 26.9 min in 2000
US average: 26.9
Drive alone to work
65.7%
−4.6 ptssince 2009
from 70.3% in 2009
US average: 75.1%
No vehicle available
5.3%
−0.2 ptssince 2009
from 5.5% in 2009
US average: 8.4%
Section 07

Work & employment

Unemployment rate
5.5%
−4.0 ptssince 2011
from 9.5% in 2011
US average: 5.4%
Labor force participation
65.0%
−1.1 ptssince 2011
from 66.0% in 2011
US average: 63.4%
Management & professional
45.6%
−21.0 ptssince 2009
from 66.6% in 2009
US average: 39.3%
Section 08

People & community

Male
48.9%
−0.3 ptssince 2009
from 49.2% in 2009
Female
51.1%
+0.3 ptssince 2009
from 50.8% in 2009
Foreign born
24.8%
+1.7 ptssince 2009
from 23.1% in 2009
US average: 13.5%
Uninsured
5.0%
−83.1 ptssince 2013
from 88.1% in 2013
US average: 8.8%
Drill deeper

Places similar to Contra Costa County

Montgomery County
Pop 1,074,582
Collin County
Pop 1,297,179
Bergen County
Pop 977,026
Westchester County
Pop 1,015,743
Places similar to Contra Costa County
Head to head

Compare Contra Costa County to nearby counties

CONTRA COSTA COUNTY VS
Alameda County
Income$129,367+24%
Home value$1,090,100+66%
Population1,636,630+40%
SEE FULL COMPARISON →
CONTRA COSTA COUNTY VS
Solano County
Income$100,401−3%
Home value$617,700−6%
Population455,376−61%
SEE FULL COMPARISON →
CONTRA COSTA COUNTY VS
San Joaquin County
Income$92,179−11%
Home value$530,700−19%
Population823,815−30%
SEE FULL COMPARISON →
CONTRA COSTA COUNTY VS
San Mateo County
Income$158,855+53%
Home value$1,559,600+138%
Population743,568−36%
SEE FULL COMPARISON →
Frequently asked

How many people live in Contra Costa County, California?

Contra Costa County, California has about 1,165,927 residents according to the 2020 American Community Survey.

What is the median household income in Contra Costa County, California?

The typical household in Contra Costa County, California earns about $103,997 a year. Half of households make more than that, and half make less.

Is Contra Costa County, California expensive?

In Contra Costa County, California, the median home is worth about $655,500, and the typical rent is about $1,928 a month.

How educated are people in Contra Costa County, California?

About 43.3% of adults age 25 and over in Contra Costa County, California hold a bachelor's degree or higher.

What is the poverty rate in Contra Costa County, California?

About 8.2% of people in Contra Costa County, California live below the federal poverty line.

Has Contra Costa County, California grown since 1990?

Yes, Contra Costa County, California has grown since 1990. The population has added about 362,195 residents, a change of about 45 percent over that period.

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Explore from here

242 census tracts (top 20 by population)
Census Tract 3551.15Census Tract 3032.07Census Tract 3031.06Census Tract 3032.02Census Tract 3552.01Census Tract 3820Census Tract 3020.14Census Tract 3451.12Census Tract 3031.07Census Tract 3320Census Tract 3770Census Tract 3790Census Tract 3080.01Census Tract 3462.04Census Tract 3452.03Census Tract 3690.01Census Tract 3310Census Tract 3142Census Tract 3342Census Tract 3050
43 ZIP codes (top 30 by population)
ZIP 94565ZIP 94509ZIP 94513ZIP 94806ZIP 94553ZIP 94582ZIP 94531ZIP 94561ZIP 94804ZIP 94521ZIP 94583ZIP 94520ZIP 94523ZIP 94801ZIP 94526ZIP 94549ZIP 94803ZIP 94518ZIP 94598ZIP 94506ZIP 94530ZIP 94547ZIP 94596ZIP 94597ZIP 94563ZIP 94519ZIP 94564ZIP 94595ZIP 94556ZIP 94505
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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