Haddam is located in the south-central part of Connecticut, in Middlesex County. It was incorporated as its own town in 1668 and named Hadham. The town was renamed to Haddam later to match its spoken name. Haddam is the only town in the state being divided by the Connecticut River, which was the major source of income for the residents for more than two centuries. From 1968 until 2004, Haddam was home to the Connecticut Yankee nuclear power plant. Also, the town got its portion of recognition in 1923 when Wallace Stevens mentioned it in his poem "Thirteen Ways of Looking at a Blackbird". Today, Haddam is a residential community.