Welcome to the Sioux County Treasurer's web site. We hope this will provide you with information you need and make contacting us easier and more efficient. It is our goal to provide quality customer service to the residents of Sioux County through all our departments and be prudent and responsible in managing the financial assets of the county.
Dan Zomermaand * Motor Vehicle: 712-737-2222 * Tax Dept: (712)-737-3505 * Fax: (712)-737-8170
Term: 4 Years * Term Expires: 2026 * Lobby Hours: 8:00a.m. - 4:30p.m. * Transactions processed until 4:00p.m.