Millerton is a village in Dutchess County, New York, United States with a population of 903 at the 2020 census. The village was named after Sidney Miller, a rail contractor who helped bring the railroad to that area. Millerton is part of the Poughkeepsie-Newburgh-Middletown Metropolitan Statistical Area of New York as well as the larger New York-Newark-Bridgeport NY-NJ-CT-PA Combined Statistical Area.