Breesport is a hamlet and census-designated place in the town of Horseheads in Chemung County, New York, United States. The population was 626 at the 2010 census.It is the home of the Twin Tiers Christian Academy.Breesport is located on the eastern side of the town of Horseheads at 42°10′24″N 076°44′02″W / 42.17333°N 76.73389°W / 42.17333; -76.73389. Its elevation is 1,099 feet. Its eastern edge is the border between Horseheads and the town of Erin. New York State Route 223 passes through the center of Breesport, leading west 3 miles to NY-13 near the village of Horseheads and east 3.5 miles to Erin.According to the United States Census Bureau, Breesport has a total area of 1.640 square miles, of which 1.628 square miles is land and 0.012 square miles is water.