Carroll is a town in Coos County, New Hampshire, United States. The population was 763 at the 2010 census. The two largest villages are Twin Mountain and Bretton Woods. Carroll is an important access point for recreational areas in the White Mountains, including many 4,000-footers, the Zealand River area, the Presidential Range, and the Presidential Dry River Wilderness. The town is crossed by the Appalachian Trail and is home to the Mount Washington Hotel at Bretton Woods. It is also home to the Highland Center at Crawford Notch, the Appalachian Mountain Club's four-season lodge.