ZIP code
94597
Walnut Creek, CA
94597 covers Walnut Creek in Contra Costa County, with 24,235 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 94597. Methodology
ZIP code map of 94597

About ZIP code 94597
Acceptable cities: Lafayette
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 94597. Not ACS. Methodology
People in 94597
Race
- White14,286
- Black or African American742
- American Indian or Alaska Native109
- Asian4,479
- Native Hawaiian and Pacific Islander35
- Other race1,147
- Two or more races2,863
Hispanic or Latino (any race): 2,991
Age
- Under 102,577
- 10 to 192,093
- 20 to 292,884
- 30 to 394,652
- 40 to 493,073
- 50 to 592,950
- 60 to 692,677
- 70 to 791,782
- 80 and older973
Income and housing in 94597
Education
- High school graduate96.2%
- Bachelor's degree65.6%
- Graduate degree27.9%
Places covering 94597
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.
- Walnut Creek64.7%
- Contra Costa Centre27.2%
- Acalanes Ridge5.4%
- Lafayette0.2%
- Pleasant Hill0.0%
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
2.6% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 94597
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 17,494 | |
| 2006 | 17,433 | |
| 2007 | 18,451 | |
| 2008 | 18,149 | |
| 2009 | 18,891 | |
| 2010 | 19,688 | |
| 2011 | 20,473 | 20,059 |
| 2012 | 19,933 | 19,830 |
| 2013 | 20,070 | 20,330 |
| 2014 | 20,645 | 20,560 |
| 2015 | 21,271 | 20,970 |
| 2016 | 21,923 | 20,550 |
| 2017 | 23,030 | 20,860 |
| 2018 | 22,734 | 20,890 |
| 2019 | 23,108 | 20,790 |
| 2020 | 23,263 | 20,310 |
| 2021 | 23,725 | 20,060 |
| 2022 | 23,654 | 20,090 |
| 2023 | 24,235 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 94597
12 nearest ZIP centroids (any distance)
- 94523Pleasant Hill2.5 miPop 34,789 · Income $142,622
- 94596Walnut Creek2.8 miPop 23,592 · Income $137,660
- 94549Lafayette2.8 miPop 28,247 · Income $231,195
- 94598Walnut Creek3.1 miPop 26,293 · Income $188,170
- 94595Walnut Creek3.2 miPop 17,051 · Income $98,108
- 94518Concord3.5 miPop 27,743 · Income $111,406
- 94520Concord5.6 miPop 36,767 · Income $79,790
- 94507Alamo5.6 miPop 14,546 · Income $250,000+
- 94575Moraga5.7 miPop 1,005 · Income —
- 94519Concord5.9 miPop 19,918 · Income $123,366
- 94521Concord6.1 miPop 41,118 · Income $127,312
- 94556Moraga6.2 miPop 15,922 · Income $199,300
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 94597, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 94597 FAQ
- What city is ZIP code 94597 in?
- 94597 is in Walnut Creek, CA.
- What county is 94597 in?
- 94597 is in Contra Costa County.
- What is the median household income in 94597?
- The median household income in 94597 is $142,685.
- Which ZIP codes are near 94597?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 94597.