ZIP code
94520
Concord, CA
94520 covers Concord in Contra Costa County, with 36,767 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 94520. Methodology
ZIP code map of 94520

About ZIP code 94520
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 94520. Not ACS. Methodology
People in 94520
Race
- White12,305
- Black or African American1,950
- American Indian or Alaska Native691
- Asian5,332
- Native Hawaiian and Pacific Islander313
- Other race11,866
- Two or more races5,926
Hispanic or Latino (any race): 18,606
Age
- Under 104,898
- 10 to 194,843
- 20 to 295,807
- 30 to 396,960
- 40 to 495,286
- 50 to 594,284
- 60 to 693,473
- 70 to 791,838
- 80 and older994
Income and housing in 94520
Education
- High school graduate79.0%
- Bachelor's degree29.9%
- Graduate degree7.7%
Places covering 94520
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
0.1% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 94520
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 28,941 | |
| 2006 | 30,336 | |
| 2007 | 33,821 | |
| 2008 | 34,010 | |
| 2009 | 37,644 | |
| 2010 | 39,491 | |
| 2011 | 36,321 | 39,420 |
| 2012 | 37,477 | 37,390 |
| 2013 | 37,489 | 36,720 |
| 2014 | 38,743 | 37,350 |
| 2015 | 39,484 | 37,240 |
| 2016 | 39,535 | 35,860 |
| 2017 | 39,027 | 35,390 |
| 2018 | 38,568 | 33,530 |
| 2019 | 38,753 | 32,590 |
| 2020 | 38,709 | 32,140 |
| 2021 | 36,107 | 30,430 |
| 2022 | 36,699 | 30,670 |
| 2023 | 36,767 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 94520
12 nearest ZIP centroids (any distance)
- 94519Concord1.3 miPop 19,918 · Income $123,366
- 94518Concord3.0 miPop 27,743 · Income $111,406
- 94523Pleasant Hill3.5 miPop 34,789 · Income $142,622
- 94521Concord4.5 miPop 41,118 · Income $127,312
- 94598Walnut Creek5.4 miPop 26,293 · Income $188,170
- 94597Walnut Creek5.6 miPop 24,235 · Income $142,685
- 94565Pittsburg5.9 miPop 99,933 · Income $95,035
- 94553Martinez6.7 miPop 48,600 · Income $121,023
- 94596Walnut Creek7.2 miPop 23,592 · Income $137,660
- 94549Lafayette7.8 miPop 28,247 · Income $231,195
- 94595Walnut Creek8.6 miPop 17,051 · Income $98,108
- 94569Port Costa9.2 miPop 194 · Income —
ZIP centroids within 2 miles
| ZIP | City | State | Distance (miles) | ACS population | Median income |
|---|---|---|---|---|---|
| 94519 | Concord | CA | 1.3 mi | 19,918 | $123,366 |
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 94520 FAQ
- What city is ZIP code 94520 in?
- 94520 is in Concord, CA.
- What county is 94520 in?
- 94520 is in Contra Costa County.
- What is the median household income in 94520?
- The median household income in 94520 is $79,790.
- Which ZIP codes are near 94520?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 94520.