Bristol is a town in Grafton County, New Hampshire, United States. The population was 3,033 at the 2000 census. It is home to Wellington State Park and Sugar Hill State Forest. Surrounded by hills and lakes, Bristol includes the lower two-thirds of Newfound Lake, a resort area. The primary settlement in town, where over 55% of the population resides, is defined by the U.S. Census Bureau as the Bristol census-designated place (CDP) and is located at the intersection of New Hampshire Routes 3A and 104.