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ZIP Code 94546
Castro Valley, CA, Alameda County
Population
44,855
Land area
16sq mi
People per sq mi
2,811
City
Castro Valley
ZIP 94546 and nearby ZIP codes
ZIP 94546 at a glance
- ZIP 94546 (Castro Valley) is about 11 times as dense as California as a whole.
- The median household income is $128,385, 30% above the California median of $99,122.
- A typical owner-occupied home is valued at $1,043,500 (42% above California) and median rent is $2,539 a month.
Local data for ZIP 94546
Counts from official public data
Housing and community stats
ZIP 94546, American Community Survey 2020-2024
Median household income
$128,385
Poverty rate
6.6%
Median home value
$1,043,500
Prices -1.1% in a year
Median rent
$2,539/mo
Homeownership
66.3%
Bachelor's or higher
41.7%
Median age
41.7
Average commute
31.9 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
923
ZIP Business Patterns 2023
Employees
8,763
$528M annual payroll
PPP loans
$62.6M
1,191 loans
Campaign donations
$351K
53% D, 7% R, 2026 cycle
Environment and hazard risk
ZIP 94546, from FEMA, NOAA and EPA
Natural hazard risk
Very High
Top: earthquake
Storm events since 1996
603
Countywide, mostly strong wind
Flood insurance policies
3,420
0.8% of homes, county
July high / Jan low
75° / 43°F
16.0 inches of rain a year
Health statistics
Share of adults in ZIP 94546, CDC PLACES estimates
Obesity
23.4%
U.S. 33.3% -9.9 pts
Diabetes
10.7%
U.S. 12.1% -1.4 pts
Smoking
10.0%
U.S. 12.8% -2.8 pts
Uninsured (18-64)
6.8%
U.S. 11.1% -4.3 pts
Frequently asked questions
- What city is ZIP code 94546?
- ZIP code 94546 is in Castro Valley, CA (Alameda County).
- What county is ZIP code 94546 in?
- ZIP code 94546 is mostly in Alameda County, California.
- How many people live in ZIP code 94546?
- About 44,855 people live in the 94546 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.
Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.