91310 is zip code located in Castaic, California. The population is , making 91310 the 2nd largest zipcode in Castaic.
There are 0 public schools in 91310 with an average Homefacts rating of NA. , and there are 1 registered sex offenders residing in the zip code 91310. Unemployment in 91310 is very high.
Zip codes within Castaic include 91384.