New Durham is a town in Strafford County, New Hampshire, United States. The population was 2,693 at the 2020 census. It is drained by the Merrymeeting, Cocheco and Ela rivers, and is known for Merrymeeting Lake. New Durham is home to the Powder Mill Fish Hatchery, located on Merrymeeting Road. Also located here is the Lions Club's Camp Pride, a camp for children and adults with special needs.