Castro Valley (CA state) ZIP code
ZIP code of Castro Valley (CA) is 94546. Below you can find map of Castro Valley, or look up other ZIP codes in California or other US states. If Castro Valley's ZIP code is duplicated, and other places have same ZIP code number, you can use our ZIP code searcher by number 94546.
Castro Valley have more then one ZIP code. List of all Castro Valley's ZIP codes: 94546, 94552.