New Hampton is in Belknap County, A winter sports resort area, New Hampton is home to George Duncan State Forest and to the New Hampton School, a private preparatory school established in 1821. The primary village is located along New Hampshire Route 132, just south of its intersection with Route 104. In 1920, the New Hampton Fish Hatchery, the state's oldest fish hatchery, was established in the town. The town has a total area of 38.3 square miles and is bounded on the west and southwest by the Pemigewasset River. Pemigewasset Lake is in the center, and Winona Lake and Lake Waukewan are in the northeast. The highest point in New Hampton is 1,840 feet atop the west ridge of Hersey Mountain.