East Haven is a town in New Haven County, Connecticut, United States. As of the 2020 census, the town population was 27,923. The town is located 3 miles (5 km) east of New Haven, and is part of the South Central Connecticut Planning Region. East Haven is 35 miles (56 km) from Hartford, 82 miles (132 km) from New York City, 99 miles (159 km) from Providence, Rhode Island, and 140 miles (230 km) from Boston.