Sevier -- U.S. County in Utah Population (2000): 18842 Housing Units (2000): 7016 Land area (2000): 1910.248937 sq. miles (4947.521825 sq. km) Water area (2000): 8.028677 sq. miles (20.794177 sq. km) Total area (2000): 1918.277614 sq. miles (4968.316002 sq. km) Located within: Utah (UT), FIPS 49 Location: 38.770438 N, 111.940807 W Headwords: Sevier Sevier, UT Sevier County Sevier County, UT