Contra Costa County, CA ZIP Codes
California (CA) · 52 ZIP codes · 30 cities
52
ZIP codes
1,161,413
population (2021)
+10.7%
pop change since 2010
06013
FIPS code
Contra Costa County ZIP code map
About Contra Costa County
Contra Costa County is located in California and contains 52 ZIP codes across 30 cities and communities.
The county's population was 1,161,413 as of 2021,
an increase of
10.7% from 1,049,025 in 2010.
The timezone is Alaska Time (observes DST).
The Federal Information Processing System (FIPS) code for Contra Costa County is 06013.
| Population | |
|---|---|
| 2021 population | 1,161,413 |
| 2010 population | 1,049,025 |
| Change | +10.7% |
| County details | |
|---|---|
| State | California |
| FIPS code | 06013 |
| Timezone | Alaska |
| Daylight saving | Yes |
Cities in Contra Costa County
Alamo
Antioch
Bethel Island
Brentwood
Byron
Canyon
Clayton
Concord
Crockett
Danville
Diablo
Discovery Bay
El Cerrito
El Sobrante
Hercules
Knightsen
Lafayette
Martinez
Moraga
Oakley
Orinda
Pinole
Pittsburg
Pleasant Hill
Port Costa
Richmond
Rodeo
San Pablo
San Ramon
Walnut Creek
ZIP codes for Contra Costa County, CA (52)
Demographics & statistics
1,153,211
Population
40.4
Median age
$129,265
Median household income
$58,877
Per capita income
$909,362
Median home value
$2,398
Median monthly rent
67.3%
Home ownership
9.5%
Poverty rate
5.6%
Unemployment
286,380
Housing units
47.9%
Bachelor's or higher
Age distribution
Male
Female
30,421
Under 5
31,891
33,729
5–9
35,358
37,600
10–14
39,417
36,869
15–19
38,651
33,018
20–24
34,613
70,021
25–34
73,403
77,967
35–44
81,733
77,626
45–54
81,375
38,905
55–59
40,785
35,089
60–64
36,784
53,778
65–74
56,376
26,727
75–84
28,019
11,256
85+
11,800
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 255,962 | 20.6% |
| 18 and over | 897,249 | 79.4% |
| 65 and over | 187,956 | 17.7% |
| Median age | 40.4 years | |
Race & ethnicity
White
38.7%
Hispanic or Latino
16.5%
Asian
15.3%
Other race
10.7%
Two or more races
10.3%
Black or African American
7.3%
American Indian / Alaska Native
0.6%
Native Hawaiian / Pacific Islander
0.4%
| Group | Count | % |
|---|---|---|
| White | 535,341 | 38.7% |
| Hispanic or Latino | 228,398 | 16.5% |
| Asian | 211,663 | 15.3% |
| Other race | 147,974 | 10.7% |
| Two or more races | 142,902 | 10.3% |
| Black or African American | 101,242 | 7.3% |
| American Indian / Alaska Native | 8,335 | 0.6% |
| Native Hawaiian / Pacific Islander | 5,754 | 0.4% |
Household income
Under $10k
3.2%
$10k–$15k
2.1%
$15k–$25k
3.5%
$25k–$35k
3.7%
$35k–$50k
6.1%
$50k–$75k
10.4%
$75k–$100k
10.0%
$100k–$150k
17.6%
$150k–$200k
12.9%
$200k+
27.7%
| Range | % of households |
|---|---|
| Under $10k | 3.2% |
| $10k–$15k | 2.1% |
| $15k–$25k | 3.5% |
| $25k–$35k | 3.7% |
| $35k–$50k | 6.1% |
| $50k–$75k | 10.4% |
| $75k–$100k | 10.0% |
| $100k–$150k | 17.6% |
| $150k–$200k | 12.9% |
| $200k+ | 27.7% |
| Median income | $129,265 |
Housing
Home values
Under $50k
1.6%
$50k–$100k
0.8%
$100k–$150k
0.7%
$150k–$200k
0.7%
$200k–$300k
1.8%
$300k–$500k
10.7%
$500k–$1M
48.0%
$1M+
33.0%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $909,362 |
| Median rent / month | $2,398 |
| Owner occupied | 67.3% |
| Renter occupied | 30.0% |
| Vacant | 3.7% |
| Single-family detached | 66.9% |
| Large apartment buildings | 8.6% |
| Mobile homes | 1.3% |
| Median rooms | 5.7 |
| Avg household size (owned) | 2.74 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.3% |
| 2010–2019 | 4.2% |
| 2000–2009 | 10.2% |
| 1990–1999 | 11.8% |
| 1980–1989 | 15.0% |
| 1970–1979 | 17.5% |
| 1960–1969 | 13.1% |
| 1950–1959 | 12.7% |
| 1940–1949 | 6.6% |
| 1939 or earlier | 5.8% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 2.7% |
| 1 bedroom | 7.9% |
| 2 bedrooms | 21.0% |
| 3 bedrooms | 32.7% |
| 4 bedrooms | 24.8% |
| 5+ bedrooms | 8.2% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 4.8% |
| 1 vehicle | 26.5% |
| 2 vehicles | 36.8% |
| 3 or more | 29.2% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 66.7% |
| Electricity | 25.4% |
| Propane / LP gas | 2.0% |
| Wood | 0.6% |
| Solar | 1.5% |
| No fuel used | 0.9% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 219,487 | 53.4% |
| Cohabiting couple | 26,858 | 6.6% |
| Male householder, no spouse | 58,397 | 13.7% |
| Female householder, no spouse | 100,023 | 23.7% |
| Households with children under 18 | 144,181 | 32.9% |
| Households with seniors (65+) | 133,757 | 33.8% |
| Average household size | 2.70 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 36.2% | 31.8% |
| Married | 53.3% | 48.7% |
| Separated | 1.2% | 1.5% |
| Widowed | 2.3% | 7.3% |
| Divorced | 7.1% | 10.6% |
Education
Less than 9th grade
4.1%
Some HS, no diploma
4.2%
HS graduate
16.1%
Some college, no degree
19.2%
Associate's degree
8.4%
Bachelor's degree
28.5%
Graduate / professional
19.5%
| Metric | % |
|---|---|
| HS diploma or higher | 91.6% |
| Bachelor's or higher | 47.9% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 16,149 | 5.6% |
| Kindergarten | 14,163 | 4.7% |
| Elementary school | 113,315 | 37.2% |
| High school | 66,296 | 22.6% |
| College / grad school | 79,614 | 30.0% |
Employment
Industry of employment
Education & healthcare
23.1%
Professional & management
17.4%
Retail trade
9.9%
Arts, food & hospitality
8.7%
Finance & real estate
8.0%
Construction
7.1%
Manufacturing
6.0%
Transportation & utilities
5.8%
Other services
4.7%
Public administration
4.2%
Information
2.4%
Wholesale trade
2.0%
Agriculture & mining
0.7%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 50.0% |
| Service | 15.2% |
| Sales & office | 20.0% |
| Natural resources & construction | 6.4% |
| Production & transportation | 8.5% |
Employment type
| Type | % |
|---|---|
| Private sector | 77.4% |
| Government | 14.7% |
| Self-employed | 7.7% |
| Unpaid family workers | 0.2% |
Commute
| Method | % |
|---|---|
| Drive alone | 60.3% |
| Carpool | 9.0% |
| Public transit | 7.6% |
| Walk | 2.8% |
| Other means | 1.9% |
| Avg commute (minutes) | 35.9 |
Poverty
All people
9.5%
Under 18 years
8.8%
18 and over
9.1%
Married-couple families
2.9%
Female-led households
13.5%
Income support
| Source | % of households |
|---|---|
| Social Security | 30.6% |
| Retirement income | 26.4% |
| Supplemental Security | 4.5% |
| Cash public assistance | 2.4% |
| Food stamps / SNAP | 5.9% |
Health indicators
| Condition | % |
|---|---|
| High blood pressure | 26.0% |
| High cholesterol | 28.7% |
| Heart disease | 4.9% |
| Stroke | 2.4% |
| Asthma | 9.3% |
| Arthritis | 20.8% |
| Kidney disease | 2.5% |
| Pulmonary disease | 4.8% |
| Cancer | 6.1% |
| Behavior / access | % |
|---|---|
| Binge drinking | 17.9% |
| No physical activity | 17.8% |
| Less than 7 hrs sleep | 30.3% |
| Fair or poor health | 11.9% |
| Poor mental health | 13.1% |
| Poor physical health | 8.6% |
| No health insurance | 9.8% |
| Visited doctor (checkup) | 65.7% |
| Visited dentist | 70.8% |
| Cholesterol screening | 91.8% |
| Teeth loss | 8.2% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 41,393 | 4.6% |
| Disability | % |
|---|---|
| Any disability | 11.5% |
| Under 18 | 3.5% |
| 18–64 years | 8.5% |
| 65 and over | 32.4% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 77.1% |
| Public insurance | 32.5% |
| Uninsured under 19 | 2.4% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 1,090,899 | 95.1% |
| Spanish | 144,805 | 11.4% |
| Other Indo-European | 78,268 | 5.6% |
| Asian & Pacific Islander | 18,775 | 1.8% |
| Other languages | 43,911 | 3.8% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 859,072 | 76.8% |
| Born in same state | 840,104 | 75.2% |
| Born in different state | 648,318 | 56.2% |
| Foreign born | 18,968 | 1.6% |
| Naturalized citizen | 294,139 | 23.2% |
| Not a US citizen | 170,297 | 62.1% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 87,303 | 7.6% |
| Italian | 86,364 | 7.5% |
| Arab | 27,563 | 2.4% |
| Polish | 13,469 | 1.2% |
| English | 8,767 | 0.8% |
| Ancestry | Count | % |
|---|---|---|
| Dutch | 6,180 | 0.5% |
| Irish | 3,058 | 0.3% |
| German | 2,784 | 0.2% |
| Norwegian | 1,406 | 0.1% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 35.4% |
| Internet access | 94.6% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
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