Data Last Updated: May 1, 2023

ZIP Codes for City of Castro Valley, CA


    
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Counties:	ALAMEDA, CA
Area Code(s):	510, 341
Timezone(s):	Pacific (GMT -08:00)
City Population:	61,388 (More Details)
CBSA:	San Francisco-Oakland-Berkeley, CA
Congressional District(s):	14, 15
Land Area:	739 square miles (county)
Water Area:	82 square miles (county)

2 ZIP Codes

Castro Valley, CA ZIP Code Boundaries

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Castro Valley, CA Covers 2 ZIP Codes

ZIP Code	Type	Population	% of Population	Aliases
94546	Standard	42,209	74.49%	HAYWARD
94552	Standard	14,454	25.51%	HAYWARD

Castro Valley, CA Demographic Information *

Total population**	61,388
Male population	29,827
Female population	31,561
Median age (years)	41.2
White Population	35,602
Black Population	4,260
Indian Population	329
Asian Population	13,140
Hawaiian Population	417
Hispanic Population	10,689
Median age (Male)	40.2
Median age (Female)	42.2
Total households	22,348
Family households (families)	16,112
Average household size	2.69
Average family size	3.15
Total housing units	23,392

* Demographic data is based on 2010 Census for the City of CASTRO VALLEY.
** City and ZIP Code Population will not be equal due to differences in their geographies.

References

U.S. Postal Service [Last Updated: 2/1/2023], https://www.usps.com
ZIP-Codes.com Internal Data Creation [Last Updated: 2/1/2023], https://www.zip-codes.com
U.S. Geological Survey [Updated as needed], https://www.usgs.gov/
U.S. Census [Updated Yearly], https://www.census.gov
U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010], https://www.census.gov