Below is a list of Easton WA zip codes. For your research we have also included Easton Area Code, Time Zone, UTC and the local Kittitas County FIPS Code. Each Easton Washington zip code has a center Longitude / Latitude point (the Easton center is -121.17700195312 / 47.238399505615). For your convenience we have also indicated if that zip code in Easton observes Daylight Savings time.