Sioux County

Alton
Boyden
Granville
Hawarden
Hospers
Hull
Ireton
Maurice
Orange City
Rock Valley
Sioux Center
HASC code :US-IA-SI
FIPS 6-4 code :19167
Capital :Orange City
Largest city :Sioux Center
Elevation :High : Granville 1,450 ft
Low : Alton 0 ft
Population :31,589
Land Area :768 sq mi
(1,989 km²)
Density :41.13/sq mi
(15.88/km²)
Time zone :UTC -6
Website :http://www.siouxcounty.org