East Haven is a town in New Haven County, Connecticut, in the United States. As of the 2020 census, the town population was 27,923. The town is located 3 miles east of New Haven, and is part of the South Central Connecticut Planning Region. East Haven is 35 miles from Hartford, 82 miles from New York City, 99 miles from Providence, Rhode Island, a…East Haven is a town in New Haven County, Connecticut, in the United States. As of the 2020 census, the town population was 27,923. The town is located 3 miles east of New Haven, and is part of the South Central Connecticut Planning Region. East Haven is 35 miles from Hartford, 82 miles from New York City, 99 miles from Providence, Rhode Island, and 140 miles from Boston.