Charlestown is a town in Sullivan County, New Hampshire, United States. The population was 4,806 at the 2020 census, down from 5,114 at the 2010 census. The town is home to Hubbard State Forest and the headquarters of the Student Conservation Association.
Not who you're looking for? Others named Charlestown: census-designated place in Charlestown, New Hampshire, Unite · city in Clark County, Indiana, United States · town in Washington County, Rhode Island, United States · neighborhood (former town) of Boston, Massachusetts, United
