Haddam is a town in Middlesex County, Connecticut, United States. The population was 7,157 at the 2000 census. The town was also home to the now decommissioned Connecticut Yankee nuclear reactor.HistoryHaddam, in Middlesex County, is located in south-central Connecticut in the lower Connecticut River Valley. It is also home to Cockaponset State Forest. Incorporated in October 1668 as Hadham, It was later renamed Haddam due to people saying Hadham too fast. Haddam is the only town in Connecticut divided by the Connecticut River. It contains five villages – Hidden Lake, Higganum, Shailerville, and Tylerville on the west side of the river, and Haddam Neck on the east. For the first two hundred years of the town’s existence, the Connecticut River was a major source of income and transportation. Today, the town of Haddam is a residential community.GeographyAccording to the United States Census Bureau, the town has a total area of 46.3sqmi, of which, 44.0sqmi of it is land and 2.3sqmi of it (5.01%) is water. It is located in the Connecticut River Valley with a majority of the town's eastern border along the Connecticut River. However, part of the border is the Salmon River on the east side, which causes the Connecticut river to divide the community of Haddam Neck from the rest of the town. Haddam is the only town in Connecticut with residents on both sides of the river, however there is no modern bridge or ferry within the town limits.
