Below is a list of Castaic CA zip codes. For your research we have also included Castaic Area Code, Time Zone, UTC and the local Los Angeles County FIPS Code. Each Castaic California zip code has a center Longitude / Latitude point (the Castaic center is -118.62100219727 / 34.488998413086). For your convenience we have also indicated if that zip code in Castaic observes Daylight Savings time.