ZIP Code 94546

Zip Code: 94546
Type: Standard
Official USPS city name: Castro Valley
Official USPS State Code: CA
Official State Name: California
ZCTA: TRUE
Population: 44378.0
Density: 1795.9
Primary Official County Code: 6001
Primary Official County Name: Alameda
Official County Name: Alameda
Official County Code: 6001
Imprecise: FALSE
Military: FALSE
Timezone: America/Los_Angeles (04:51 AM Monday, May 12 2025-05-12 (GMT -0700))
Geo Point: 37.71498, -122.08002