About Us

Sioux County, which is located in the northwest corner of Iowa, was named after the Sioux Indian tribe that roamed the western praries of Iowa. The name means "Little Snakes".

As of the 2010 U.S. Census, the population was 33,704. The County has a total area of 769 square miles. The county seat is located in Orange City.

Cities Of Sioux County - Populations

Alton - 1,216
Boyden - 707
Chatsworth - 79
Granville - 312
Hawarden - 2,546
Hospers - 698
Hull - 2,175
Ireton - 609
Matlock - 87
Maurice - 275
Orange City - 6,004
Rock Valley - 3,354
Sioux Center - 7,048