Ledyard ˈlɛdʒərd is a Town in New London County, Connecticut, United States, located along the Thames River. The town is named after Colonel William Ledyard, a Revolutionary War officer who was killed at the Battle of Groton Heights. The town is part of the Southeastern Connecticut Planning Region. The population was 15,413 at the 2020 census. The Foxwoods Resort Casino, owned and operated by the Mashantucket Pequot Tribe, is located in the northeastern section of Ledyard, on the reservation owned by the tribe.
Ledyard's zip code is 06339. Within the southwestern area of Ledyard is the district known as Gales Ferry, which has the postal code 06335. In the northeast is Mashantucket, with the postal code 06338.
Named for Colonel William Ledyard, slain commander of Colonial forces in the Battle of Groton Heights in September 1781, the Town was set off from Groton in 1836 by an act of the Connecticut Legislature. The western section, on the east bank of the Thames River