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ZIP 94531 · Antioch

Who lives in ZIP code 94531 (Antioch, CA): age, income, housing, education and work.

Source: uszips 2026 (ACS-based ZIP file)

2026 ZIP profile

Antioch, CA · Contra Costa County

uszips 2026
People46,387
Median age38.8
Household income$120,927
Home value$701,241
Median rent$3,150/mo
Poverty8.3%
College degree+32.2%
Commute44 min

Place

Metro area
San Francisco-Oakland-Fremont, CA
Wider region
San Jose-San Francisco-Oakland, CA
Metro division
Oakland-Fremont-Berkeley, CA
Time zone
Pacific
Density
1,277 / sq mi
Housing units
13,905

County

Contra Costa100%

Share of the ZIP's people in each county.

Age mix

Under 1010.8%
10–1913.8%
20s14.1%
30s12.9%
40s12.6%
50s14.6%
60s12.7%
70s6.1%
80+2.3%

12.8% are 65 or older; 78.1% are adults.

Household income

Under $25K6.6%
$25K–50K9.4%
$50K–75K9.0%
$75K–100K14.7%
$100K–150K20.4%
$150K+39.8%

60.2% of households earn $100K+. Median per person: $49,944.

Education (adults 25+)

Less than high school9.8%
High school24.7%
Some college33.2%
Bachelor's22.3%
Graduate9.9%

52.7% of degrees are in STEM fields.

Race

White26.0%
Black25.0%
Asian21.1%
Native American1.4%
Pacific Islander0.2%
Other11.6%
Two or more14.7%

23.6% Hispanic or Latino (of any race).

Households & family

Married
48.9%
Never married
37.4%
Divorced
9.7%
Widowed
3.9%
Family size
3.53
Dual-income families
58.8%

Housing

Own their home
73.2%
Rent burden
36.9%
Men / women
48% / 52%

Work

In labor force
66.1%
Unemployment
7.2%
Self-employed
11.6%
Farmers
0.0%

Community

Charitable givers
36.4%
Veterans
3.9%
With a disability
13.3%
No health insurance
4.0%
Limited English
5.9%

Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.

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