ZIP code
94521
Concord, CA
94521 covers Concord in Contra Costa County, with 41,118 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 94521. Methodology
ZIP code map of 94521
About ZIP code 94521
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 94521. Not ACS. Methodology
People in 94521
Race
- White24,192
- Black or African American1,418
- American Indian or Alaska Native313
- Asian7,255
- Native Hawaiian and Pacific Islander174
- Other race3,453
- Two or more races6,080
Hispanic or Latino (any race): 8,555
Age
- Under 104,524
- 10 to 194,895
- 20 to 294,461
- 30 to 395,797
- 40 to 495,528
- 50 to 596,324
- 60 to 695,700
- 70 to 793,643
- 80 and older2,013
Income and housing in 94521
Education
- High school graduate94.5%
- Bachelor's degree44.0%
- Graduate degree13.8%
Places covering 94521
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
2.1% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 94521
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 39,355 | |
| 2006 | 38,066 | |
| 2007 | 39,882 | |
| 2008 | 38,589 | |
| 2009 | 38,632 | |
| 2010 | 38,881 | |
| 2011 | 41,880 | 39,179 |
| 2012 | 40,854 | 39,110 |
| 2013 | 41,354 | 39,560 |
| 2014 | 41,138 | 39,680 |
| 2015 | 41,575 | 39,780 |
| 2016 | 41,854 | 39,630 |
| 2017 | 43,850 | 39,410 |
| 2018 | 43,103 | 39,460 |
| 2019 | 43,281 | 39,080 |
| 2020 | 42,891 | 38,880 |
| 2021 | 42,388 | 38,280 |
| 2022 | 41,092 | 37,770 |
| 2023 | 41,118 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 94521
12 nearest ZIP centroids (any distance)
- 94518Concord2.9 miPop 27,743 · Income $111,406
- 94519Concord3.4 miPop 19,918 · Income $123,366
- 94598Walnut Creek3.5 miPop 26,293 · Income $188,170
- 94565Pittsburg4.5 miPop 99,933 · Income $95,035
- 94520Concord4.5 miPop 36,767 · Income $79,790
- 94596Walnut Creek5.7 miPop 23,592 · Income $137,660
- 94523Pleasant Hill5.8 miPop 34,789 · Income $142,622
- 94517Clayton6.0 miPop 12,164 · Income $164,860
- 94597Walnut Creek6.1 miPop 24,235 · Income $142,685
- 94507Alamo7.1 miPop 14,546 · Income $250,000+
- 94528Diablo7.7 miPop 1,000 · Income —
- 94595Walnut Creek7.8 miPop 17,051 · Income $98,108
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 94521, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 94521 FAQ
- What city is ZIP code 94521 in?
- 94521 is in Concord, CA.
- What county is 94521 in?
- 94521 is in Contra Costa County.
- What is the median household income in 94521?
- The median household income in 94521 is $127,312.
- Which ZIP codes are near 94521?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 94521.