Cornwallville, NY is a city located in Greene County, New York and has a land area of 13.85 square miles (35.87 km2). The water area for the city is 0.00 square miles or 0.00 km2. There is one unique zip code in Cornwallville, New York and it is 12418. The area code(s) for Cornwallville is 518.
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