East Meadow is a hamlet and census-designated place in the Town of Hempstead in Nassau County, on Long Island, in New York. The population was 38,132 at the 2010 census. Many residents commut…East Meadow is a hamlet and census-designated place in the Town of Hempstead in Nassau County, on Long Island, in New York. The population was 38,132 at the 2010 census. Many residents commute to Manhattan, which is 30 miles away.