Cortland County, New York Zip Codes by Population (2024)

The most populated Zip Code in Cortland County, New York is 13045, located in Cortland. * 2024 populations estimated based on the latest ACS 5-year data.

Zip Code
City
Population
13045Cortland28,157
13077Homer6,646
13803Marathon4,278
13040Cincinnatus2,620
13101McGraw2,410
13158Truxton1,352
13141Preble655
13863Willet473
13784Harford294
13087Little York161
13738Blodgett Mills44