Carroll -- U.S. County in New Hampshire Population (2000): 43666 Housing Units (2000): 34750 Land area (2000): 933.798516 sq. miles (2418.526952 sq. km) Water area (2000): 58.436862 sq. miles (151.350772 sq. km) Total area (2000): 992.235378 sq. miles (2569.877724 sq. km) Located within: New Hampshire (NH), FIPS 33 Location: 43.822605 N, 71.181589 W Headwords: Carroll Carroll, NH Carroll County Carroll County, NH