Sioux County, Iowa
Sioux County is a county in Iowa with an estimated population of 36,246 in 2023. 11 cities, towns and Census places in it are indexed here.
Largest places in Sioux County
Sioux Center 8,543Orange City 6,397Rock Valley 4,045Hawarden 2,644Hull 2,432Alton 1,243Hospers 706Boyden 697Ireton 578Granville 303Maurice 272
About Sioux County
Sioux County is one of the counties of Iowa. County governments in Iowa handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.