Census place · GEOID 0611915 · Contra Costa County
Castle Hill, CA ZIP codes
2 ZIP/ZCTAs intersecting this Census place (CDP) in Contra Costa County.
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: Census place Castle Hill (GEOID 0611915). Methodology
Combined population of ZIP/ZCTAs intersecting this place: 31,597 (2 ZIPs).
Combined population of ZIP/ZCTAs intersecting this place. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census place ACS headline above. Methodology
Map of Castle Hill, CA
ZIP/ZCTA overlap with Castle Hill
Population overlap
Share of each ZIP/ZCTA’s population located within Castle Hill, 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
ZIP codes intersecting Castle Hill
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 94507 | Alamo | Contra Costa County | 14,546 | $250,000+ |
| 94595 | Walnut Creek | Contra Costa County | 17,051 | $98,108 |