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
No Passport Processing Services from Monday, October 26th until Wednesday, November 4, 2026
The O’Brien County Auditor’s Office will not be processing passport applications from Monday, October 26th until Wednesday, November 4, 2026. To find a passport acceptance agent near you check the US Passport web page at: Travel.State.Gov
County Farm Land Rent Auction October 27, 2026
County Farmland Rent Bids The O’Brien County Board of Supervisors will open sealed bids at 10:00 a.m. October 27, 2026 for the rent of the O’Brien County Farm located on the N ½ of Section 5, Highland Township. The total acres are 297.43. The minimum bid will be $225.00 per acre. The lease will be … Read more
2026 General Election Nov 3rd ~ Sample Ballot
Absentee Voting: In person and mail out absentee voting for the 2026 General Election will begin on Wednesday, October 14th. Registration forms for mail out ballots must be received in the Auditor’s Office by 5:00 pm Monday, October 19, 2026. The application form can be downloaded by clicking Here – Absentee Ballot Request Form [PDF, … Read more
Position Opening – County Engineer
The O’Brien County Board of Supervisors is seeking qualified applicants for the position of County Engineer. Applicant must have an Iowa Professional Engineering License in Civil Engineering. O’Brien County (population 14,182) is located in Northwest Iowa with Primghar as the county seat. O’Brien County has one hospital, three public schools, four private schools, area community … Read more
No Driver’s License Services on Tuesdays
Due to the high volume of customer needs, the O’Brien County Treasurer’s Office will no longer be providing Driver’s License Services on Tuesdays. The Office is currently experiencing an excessive back-log of motor vehicle processing and will be using Tuesdays to get vehicle registrations and titles processed.