Zip Area Code

Castaic, California

Castaic, California, in Los Angeles County, has ZIP codes 91310 and 91384 and area code 661.

ZIP codes
91310, 91384
Area code
661
Time zone
Pacific Time
Coordinates
34.4858, -118.6242

ZIP codes in Castaic

ZIP codePost officeCountyArea codes
91310*CastaicLos Angeles County661
91384CastaicLos Angeles County661

* No mapped delivery area: P.O. boxes or a single organization. Area codes are those of the nearest ZIP code area.

Area code for Castaic

  • Area code 661

    In service since February 13, 1999. Local calls are dialed with seven digits; dialing 1 plus ten digits also works.

Time zone

Castaic is in the Pacific Time zone.

Towns near Castaic