There are 12 zip codes in Montgomery County, New York. The most populated is 12010, located in Amsterdam. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
1201027,213Amsterdam
133396,084Fort Plain
133174,002Canajoharie
120722,992Fultonville
120682,509Fonda
120702,499Fort Johnson
120661,834Esperance
134281,533Palatine Bridge
121661,505Sprakers
13410536Nelliston
12069483Fort Hunter
12177455Tribes Hill

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