Below is a list of Saint Helena CA zip codes. For your research we have also included Saint Helena Area Code, Time Zone, UTC and the local Napa County FIPS Code. Each Saint Helena California zip code has a center Longitude / Latitude point (the Saint Helena center is -122.46700286865 / 38.503200531006). For your convenience we have also indicated if that zip code in Saint Helena observes Daylight Savings time.
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