ZIP Code 91310
Castaic, California · Los Angeles County
No38573
Zip91310
TypePO BOX
Decommissioned0
Primary CityCastaic
Acceptable CitiesSanta Clarita
Unacceptable Cities—
StateCA
LstateCalifornia
CountyLos Angeles County
TimezoneAmerica/Los_Angeles
Area Codes661
World RegionNA
CountryUS
Latitude34,49
Longitude-118,61