Below is a list of Oroville WA zip codes. For your research we have also included Oroville Area Code, Time Zone, UTC and the local Okanogan County FIPS Code. Each Oroville Washington zip code has a center Longitude / Latitude point (the Oroville center is -119.05 / 48.9461). For your convenience we have also indicated if that zip code in Oroville observes Daylight Savings time. For more information on Oroville Washington you will find helpful business links and searches.