Below is a list of Boonville CA zip codes. For your research we have also included Boonville Area Code, Time Zone, UTC and the local Mendocino County FIPS Code. Each Boonville California zip code has a center Longitude / Latitude point (the Boonville center is -123.358 / 39.0044). For your convenience we have also indicated if that zip code in Boonville observes Daylight Savings time. For more information on Boonville California you will find helpful business links and searches.