Campton is a town in Grafton County, New Hampshire, United States. The population was 3,343 at the 2020 census. Campton, which includes the villages of Blair, Campton Hollow, Lower Campton and West Campton, is home to Blair State Forest and Livermore Falls State Forest. It is located in the foothills of the White Mountains, and parts of the White Mountain National Forest are in the northeast and northwest.