ZIP Code 94521 Demographics
Contra Costa County, California · ACS 2022 5-Year Estimates
Population & Income Overview
Key statistics for ZIP code 94521 compared to county averages.
Total Population
41,092
↓ 96.5% vs countyMedian HH Income
$121,368
↑ +1.1% vs countyMedian Home Value
$778,300
↓ 1.1% vs countyMedian Age
43.1 yrs
↓ +7.5% vs countyUnemployment Rate
5.6%
↑ 4.8% vs countyIncome & Housing Comparison
How ZIP 94521 compares to Contra Costa County and California overall. Data from ACS 2022 5-year estimates.
Source: ACS 2022 5-Year Estimates, Table B19013
Source: ACS 2022 5-Year Estimates, Table B25077
Education & Employment
Bachelor's Rate
27.1%
of adults 25+ hold a bachelor's degree or higher
Owner Occupancy
74.3%
of occupied housing units are owner-occupied
Median Gross Rent
$2,284
per month including utilities
Rent vs. Buy Affordability
Compare estimated monthly costs of home ownership vs renting in ZIP Code 94521 using local Census metrics.
Estimated Monthly Costs
How Does 94521 Compare?
Enter another ZIP code to see a side-by-side comparison.
Location & Neighboring Areas
Interactive map showing ZIP code 94521 (blue pin) and surrounding areas (purple pins). Click pins to view details.
Nearby ZIP Codes
ZIP codes geographically closest to 94521, sorted by distance.
About Contra Costa County
Contra Costa County is located in California and has a total population of 1,162,648. The county's median household income is $120,020 and median home value is $787,300. ZIP code 94521 is one of many ZCTAs within this county.
View all ZIP codes in Contra Costa CountyData source: American Community Survey (ACS) 2022 5-Year Estimates, U.S. Census Bureau. ZCTAs (ZIP Code Tabulation Areas) are used as proxies for USPS ZIP codes. Some USPS ZIP codes may not have a corresponding ZCTA.