Welcome to the official website for Sioux County, Iowa. We are "Putting the People of Sioux County First", and we hope you find the information you are looking for on our site.
A tentative agenda has been posted for the Tuesday, March 31, 2015 Board of Supervisors meeting. View the agenda here.
Public Notice: The Sioux County Courthouse and Treasurer's Office will be closing at 1:45 PM on Wednesday, April 15, 2015 for employee training. These offices will re-open at 8:00 AM on Thursday, April 16, 2015.