Jefferson County

Jefferson County is an administrative county in southeastern Iowa covering about 437 square miles. The Skunk River flows through its northeastern section while the Des Moines River runs through the southwestern area.

The county was established in January 1839 and named in honor of Thomas Jefferson, the third U.S. president. Its creation occurred during the westward expansion period when Iowa was being settled.

The county operates under a three-member board of supervisors system, with regular Monday meetings at the courthouse allowing direct citizen participation in governance.

The county courthouse in Fairfield serves as the main administrative hub for county services during business days. Visitors seeking official information should plan their visit during standard operating hours.

The county maintains several fishing ponds and parks that serve as gathering spots for outdoor recreation. These green spaces give visitors and residents places to spend time in nature throughout the year.

Location: Iowa

Inception: 1839

Capital city: Fairfield

Shares border with: Washington County, Van Buren County, Wapello County, Davis County, Henry County, Keokuk County

Website: https://jeffersoncounty.iowa.gov

GPS coordinates: 41.03139,-91.94472

Latest update: December 7, 2025 20:46