Below is a list of Cortland County NY zip codes. For your research we have also included Cortland County Area Code, Time Zone, UTC and the local County FIPS Code. Each Cortland County New York zip code has a center Longitude / Latitude point (the Cortland County center is -76.089599609375 / 42.596099853516). For your convenience we have also indicated if that zip code in Cortland County observes Daylight Savings time.