Below is a list of Asotin County WA zip codes. For your research we have also included Asotin County Area Code, Time Zone, UTC and the local County FIPS Code. Each Asotin County Washington zip code has a center Longitude / Latitude point (the Asotin County center is -117.05899810791 / 46.291900634766). For your convenience we have also indicated if that zip code in Asotin County observes Daylight Savings time.