Below is a list of Alturas CA zip codes. For your research we have also included Alturas Area Code, Time Zone, UTC and the local Modoc County FIPS Code. Each Alturas California zip code has a center Longitude / Latitude point (the Alturas center is -120.55 / 41.5137). For your convenience we have also indicated if that zip code in Alturas observes Daylight Savings time. For more information on Alturas California you will find helpful business links and searches.