Welcome to O’Brien County
O’Brien County is uniform in shape, a perfect square, 24 miles each way. 16 townships of six square miles. Two rivers, the Little Sioux and Ocheydan. Smaller streams are Mill Creek, Waterman Creek and branches of the Floyd River. The County was named by the Iowa Legislature. It is named for an Irish Patriot, William Smith O’Brien.
Latest News & Announcements
PRESS RELEASE – FOR IMMEDIATE RELEASE – 1215-2020 The O’Brien County Courthouse will be moving to a modified Phase 2 on December 15, 2020. Temporary safety measures have been implemented. During Phase 2 of the O’Brien County Courthouse Reopening Plan, the following guidelines will be followed: Both east and west entrances will Read More »Read More
The O’Brien County Board of Supervisors adopted County Ordinance No. 25, an Ordinance regulating the operations of off-highway vehicles in the county. The ordinance will be effective April 1, 2017. The full ordinance is on the web page.Read More