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Zip Code information for Castro Valley, California.

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California Zip Codes

Castro Valley Zip Codes

What are the Castro Valley, California Zip Codes for 2020, 2019

Primary Zip Codes for Castro Valley

Zip Code	Primary City	Secondary City
94546	Castro Valley	Hayward
94552	Castro Valley	Hayward

Cities sharing Zip Codes with Castro Valley

Zip Code	Primary City	Secondary City	More Information
94546	Castro Valley	Hayward	Hayward population stats
94552	Castro Valley	Hayward	Hayward population stats

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