Cavalier -- U.S. County in North Dakota Population (2000): 4831 Housing Units (2000): 2725 Land area (2000): 1488.458592 sq. miles (3855.089893 sq. km) Water area (2000): 21.678216 sq. miles (56.146319 sq. km) Total area (2000): 1510.136808 sq. miles (3911.236212 sq. km) Located within: North Dakota (ND), FIPS 38 Location: 48.755148 N, 98.463479 W Headwords: Cavalier Cavalier, ND Cavalier County Cavalier County, ND