Below is a list of Oroville CA zip codes. For your research we have also included Oroville Area Code, Time Zone, UTC and the local Butte County FIPS Code. Each Oroville California zip code has a center Longitude / Latitude point (the Oroville center is -121.55100250244 / 39.500301361084). For your convenience we have also indicated if that zip code in Oroville observes Daylight Savings time.