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

Full Time Opening ~ Auditor’s Office

O’Brien County Auditor’s Office HAS A FULL TIME OPENING for a Payroll and Accounts Payable Clerk.  Must possess a two year degree, or two years’ work related experience in accounting or comparable field. Duties include: Accounts Payable, Payroll processing, Voter Registration/Election processing and other office related duties.  This person must be organized, dependable and motivated … Read more

Read More

2024 Primary Election Results ~ Official

Please click the link below for election results for the O’Brien County Primary Election. Official Election Results ~ O’Brien County Statewide Unofficial Election Results – Secretary of State

Read More

Notice of Public Hearing – Proposed County Budget for Fiscal 2025

The O’Brien County Board of Supervisors will hold a public hearing on Tuesday, April 2, 2024 at 9:00 a.m. Click Here for Fiscal 2025 County Proposed Property Tax Levy

Read More

Effective Tuesday, August 22, 2023 There will No Longer be 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.  This change will be effective beginning Tuesday August … Read more

Read More

O’Brien County Property Search

Property Search

Read More

Fireworks Permit Applications

Fireworks Permits are needed for any displays to be done in rural O’Brien County.  If a display is being planned for the July 4th holiday, those applications and proof of insurance need to be received for approval by June 25, 2020. Fireworks Permit Application

Read More