Below is a list of Mount Shasta CA zip codes. For your research we have also included Mount Shasta Area Code, Time Zone, UTC and the local Siskiyou County FIPS Code. Each Mount Shasta California zip code has a center Longitude / Latitude point (the Mount Shasta center is -122.32099914551 / 41.32149887085). For your convenience we have also indicated if that zip code in Mount Shasta observes Daylight Savings time.