ZIP code
94509
Antioch, CA
94509 covers Antioch in Contra Costa County, with 71,013 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 94509. Methodology
ZIP code map of 94509
About ZIP code 94509
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 94509. Not ACS. Methodology
People in 94509
Race
- White22,079
- Black or African American12,970
- American Indian or Alaska Native1,224
- Asian5,961
- Native Hawaiian and Pacific Islander958
- Other race16,912
- Two or more races9,827
Hispanic or Latino (any race): 28,840
Age
- Under 109,326
- 10 to 1910,121
- 20 to 299,570
- 30 to 3910,026
- 40 to 498,480
- 50 to 598,783
- 60 to 697,469
- 70 to 794,108
- 80 and older2,048
Income and housing in 94509
Education
- High school graduate82.4%
- Bachelor's degree18.9%
- Graduate degree4.8%
Places covering 94509
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.
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 94509
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 55,659 | |
| 2006 | 54,719 | |
| 2007 | 57,684 | |
| 2008 | 55,320 | |
| 2009 | 56,656 | |
| 2010 | 57,942 | |
| 2011 | 61,266 | 58,540 |
| 2012 | 61,665 | 57,710 |
| 2013 | 62,651 | 59,320 |
| 2014 | 63,351 | 59,270 |
| 2015 | 64,406 | 60,890 |
| 2016 | 64,412 | 61,080 |
| 2017 | 66,741 | 61,220 |
| 2018 | 66,933 | 60,080 |
| 2019 | 68,166 | 59,890 |
| 2020 | 69,295 | 60,500 |
| 2021 | 71,669 | 58,020 |
| 2022 | 70,889 | 57,790 |
| 2023 | 71,013 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 94509
12 nearest ZIP centroids (any distance)
- 94531Antioch3.1 miPop 44,746 · Income $123,428
- 94565Pittsburg6.4 miPop 99,933 · Income $95,035
- 94561Oakley6.6 miPop 45,386 · Income $130,859
- 94517Clayton8.2 miPop 12,164 · Income $164,860
- 94513Brentwood8.3 miPop 68,160 · Income $139,736
- 94548Knightsen8.9 miPop 637 · Income $183,100
- 94521Concord9.0 miPop 41,118 · Income $127,312
- 94512Birds Landing9.6 miPop 134 · Income —
- 94511Bethel Island10.3 miPop 2,144 · Income $78,393
- 94519Concord10.9 miPop 19,918 · Income $123,366
- 94571Rio Vista11.4 miPop 10,973 · Income $85,212
- 94518Concord11.8 miPop 27,743 · Income $111,406
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 94509, 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 94509 FAQ
- What city is ZIP code 94509 in?
- 94509 is in Antioch, CA.
- What county is 94509 in?
- 94509 is in Contra Costa County.
- What is the median household income in 94509?
- The median household income in 94509 is $81,512.
- Which ZIP codes are near 94509?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 94509.