Cortland County, New York Zip Codes

Zip Code	City	Population
13045	Cortland	28,157
13077	Homer	6,646
13803	Marathon	4,278
13040	Cincinnatus	2,620
13101	McGraw	2,410
13158	Truxton	1,352
13141	Preble	655
13863	Willet	473
13784	Harford	294
13087	Little York	161
13738	Blodgett Mills	44

Population is the most recent figure from the U.S. Census Bureau's 2022 American Community Survey (ACS) 5-Year Estimates.