Below is a list of Etna CA zip codes. For your research we have also included Etna Area Code, Time Zone, UTC and the local Siskiyou County FIPS Code. Each Etna California zip code has a center Longitude / Latitude point (the Etna center is -122.8929977417 / 41.457000732422). For your convenience we have also indicated if that zip code in Etna observes Daylight Savings time.