Below is a list of Washington Mills NY zip codes. For your research we have also included Washington Mills Area Code, Time Zone, UTC and the local Oneida County FIPS Code. Each Washington Mills New York zip code has a center Longitude / Latitude point (the Washington Mills center is -75.271896362305 / 43.052700042725). For your convenience we have also indicated if that zip code in Washington Mills observes Daylight Savings time.