There are 13 zip codes in Tompkins County, New York. The most populated is 14850, located in Ithaca. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
1485065,740Ithaca
148866,544Trumansburg
130736,514Groton
148675,242Newfield
130684,778Freeville
130534,717Dryden
148823,678Lansing
148172,911Brooktondale
148532,202Ithaca
14881250Slaterville Springs
13062212Etna
1485495Jacksonville
1310252McLean

Zip Codes in Tompkins County, New York by Population (2024)