Below is a list of Castella CA zip codes. For your research we have also included Castella Area Code, Time Zone, UTC and the local Shasta County FIPS Code. Each Castella California zip code has a center Longitude / Latitude point (the Castella center is -122.31900024414 / 41.140201568604). For your convenience we have also indicated if that zip code in Castella observes Daylight Savings time.