Below is a list of Graton CA zip codes. For your research we have also included Graton Area Code, Time Zone, UTC and the local Sonoma County FIPS Code. Each Graton California zip code has a center Longitude / Latitude point (the Graton center is -122.86000061035 / 38.44100189209). For your convenience we have also indicated if that zip code in Graton observes Daylight Savings time.