Cornwallville, New York Cornwallville, New York Cornwallville is positioned in New York Cornwallville - Cornwallville Cornwallville is a hamlet in the town of Durham, Greene County, New York, United States. The zipcode is: 12418. Municipalities and communities of Greene County, New York, United States Ashland Athens Cairo Catskill Coxsackie Durham Greenville Halcott Hunter Jewett Lexington New Baltimore Prattsville Windham Stub icon This article about a locale in Greene County, New York is a stub.

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Hamlets in Greene County, New York - Hamlets in New York - Catskill Mountains, New York geography stubs