Below is a list of Okanogan County WA zip codes. For your research we have also included Okanogan County Area Code, Time Zone, UTC and the local County FIPS Code. Each Okanogan County Washington zip code has a center Longitude / Latitude point (the Okanogan County center is -119.6190032959 / 48.416301727295). For your convenience we have also indicated if that zip code in Okanogan County observes Daylight Savings time.