Below is a list of Oswego County NY zip codes. For your research we have also included Oswego County Area Code, Time Zone, UTC and the local County FIPS Code. Each Oswego County New York zip code has a center Longitude / Latitude point (the Oswego County center is -76.155097961426 / 43.415901184082). For your convenience we have also indicated if that zip code in Oswego County observes Daylight Savings time.