ZIP code
94531
Antioch, CA
94531 covers Antioch in Contra Costa County, with 44,746 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 94531. Methodology
ZIP code map of 94531
About ZIP code 94531
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 94531. Not ACS. Methodology
People in 94531
Race
- White10,633
- Black or African American11,081
- American Indian or Alaska Native473
- Asian9,048
- Native Hawaiian and Pacific Islander586
- Other race7,114
- Two or more races6,407
Hispanic or Latino (any race): 13,122
Age
- Under 105,122
- 10 to 196,821
- 20 to 296,504
- 30 to 395,685
- 40 to 495,775
- 50 to 596,945
- 60 to 695,102
- 70 to 792,317
- 80 and older1,071
Income and housing in 94531
Education
- High school graduate89.6%
- Bachelor's degree31.6%
- Graduate degree8.9%
Places covering 94531
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Antioch100.0%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Contra Costa County100.0%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
0.0% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 94531
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 38,379 | |
| 2006 | 37,179 | |
| 2007 | 38,917 | |
| 2008 | 38,095 | |
| 2009 | 39,400 | |
| 2010 | 39,778 | |
| 2011 | 40,115 | 40,182 |
| 2012 | 41,237 | 40,360 |
| 2013 | 41,700 | 41,360 |
| 2014 | 42,587 | 41,510 |
| 2015 | 43,095 | 42,370 |
| 2016 | 44,263 | 42,130 |
| 2017 | 43,285 | 42,360 |
| 2018 | 43,788 | 42,160 |
| 2019 | 43,022 | 42,560 |
| 2020 | 42,163 | 43,900 |
| 2021 | 43,067 | 43,720 |
| 2022 | 44,115 | 44,560 |
| 2023 | 44,746 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 94531
12 nearest ZIP centroids (any distance)
- 94509Antioch3.1 miPop 71,013 · Income $81,512
- 94561Oakley5.4 miPop 45,386 · Income $130,859
- 94513Brentwood5.4 miPop 68,160 · Income $139,736
- 94548Knightsen7.0 miPop 637 · Income $183,100
- 94517Clayton7.7 miPop 12,164 · Income $164,860
- 94565Pittsburg8.9 miPop 99,933 · Income $95,035
- 94511Bethel Island9.4 miPop 2,144 · Income $78,393
- 94521Concord10.5 miPop 41,118 · Income $127,312
- 94505Discovery Bay11.5 miPop 15,316 · Income $154,063
- 94514Byron12.0 miPop 2,044 · Income $97,946
- 94588Pleasanton12.2 miPop 34,423 · Income $186,569
- 94512Birds Landing12.3 miPop 134 · Income —
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 94531, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
Default is 2 miles. Distances are between ZIP centroids. Widen the radius if nothing is in range.
ZIP code 94531 FAQ
- What city is ZIP code 94531 in?
- 94531 is in Antioch, CA.
- What county is 94531 in?
- 94531 is in Contra Costa County.
- What is the median household income in 94531?
- The median household income in 94531 is $123,428.
- Which ZIP codes are near 94531?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 94531.