Below is a list of Endicott WA zip codes. For your research we have also included Endicott Area Code, Time Zone, UTC and the local Whitman County FIPS Code. Each Endicott Washington zip code has a center Longitude / Latitude point (the Endicott center is -117.68599700928 / 46.928199768066). For your convenience we have also indicated if that zip code in Endicott observes Daylight Savings time.