Below is a list of Kelseyville CA zip codes. For your research we have also included Kelseyville Area Code, Time Zone, UTC and the local Lake County FIPS Code. Each Kelseyville California zip code has a center Longitude / Latitude point (the Kelseyville center is -122.82900238037 / 38.967300415039). For your convenience we have also indicated if that zip code in Kelseyville observes Daylight Savings time.