94546 is zip code located in Castro Valley, California. The population is 42,766, making 94546 the largest zipcode in Castro Valley.
There are 15 public schools in 94546 with an average Homefacts rating of A-. , and there are 24 registered sex offenders residing in the zip code 94546. Unemployment in 94546 is moderate.
Zip codes within Castro Valley include 94552.