Below is a list of Westernville NY zip codes. For your research we have also included Westernville Area Code, Time Zone, UTC and the local Oneida County FIPS Code. Each Westernville New York zip code has a center Longitude / Latitude point (the Westernville center is -75.381103515625 / 43.30530166626). For your convenience we have also indicated if that zip code in Westernville observes Daylight Savings time.