Clark -- U.S. County in Nevada Population (2000): 1375765 Housing Units (2000): 559799 Land area (2000): 7910.335335 sq. miles (20487.673594 sq. km) Water area (2000): 180.319993 sq. miles (467.026617 sq. km) Total area (2000): 8090.655328 sq. miles (20954.700211 sq. km) Located within: Nevada (NV), FIPS 32 Location: 36.139215 N, 115.117901 W Headwords: Clark Clark, NV Clark County Clark County, NV