Balmville is a hamlet in Orange County, New York, United States. It is part of the Poughkeepsie–Newburgh–Middletown, NY Metropolitan Statistical Area as well as the larger New York–Newark–Bridgeport, NY-NJ-CT-PA Combined Statistical Area. It is located in the southeastern part of the Town of Newburgh. The population was 3,197 at the 2020 census.