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Historic Keokuk Iowa Driving Tour
Item 6 of 9

Constructed in 1888, Keokuk's historic post office and courthouse features a distinctive seven-story clock tower. The building is listed on the National Register of Historic Places in part because of its Late Victorian architecture which includes features such as a red brick exterior, round-arched windows and entryways, limestone trim, dormers, and decorative terra cotta. Lee County is the only one in Iowa with two county seats and this was the second courthouse constructed in the county (the other is in Fort Madison).


Lee County Courthouse was built in 1888. It is significant for its architecture and the fact that is it is the second courthouse in Lee County.

Sky, Wheel, Building, Car

Construction of the U.S. Post Office and Courthouse began in April 1887 and was completed in September 1888. Supervising Architect of the U.S. Treasury Department Mifflin E. Bell (1847-1904) designed it. Mifflin designed several courthouses in the country and was a member of the commission that built the Washington Monument. The tower was initially only five stories but that height was not tall enough for the clocks to be sufficiently seen. As a result, in 1890 two stories were dismantled and rebuilt with an additional 25 feet.

The Iowa General Assembly designated Keokuk as the second county seat in 1848 (Fort Madison became the first county seat in 1836). The reason for this was due the creation of the southern border with Missouri. In 1816, surveyor J.C. Sullivan drew the line but stopped at the western edge of the county at the Des Moines River. In an 1824 treaty with the federal government, the Ioway, Sac, and Fox tribes ceded their lands in Missouri. In the agreement what became North Lee was the tribes' territory and it was implied that the southern border, which is known as the "Sullivan Line," was extended to the Mississippi River. This is why Lee County has two county seats.

"Lee County Courthouses." Iowa Judicial Branch. Accessed December 24, 2021. https://www.iowacourts.gov/for-the-public/educational-resources-and-services/iowa-courts-history/iowa-county-courthouse-history/lee-county-courthouses.

Pickens, Buford L. "U.S. Post Office and Courthouse." National Park Service - National Register of Historic Places Nomination Form. January 24, 1974. https://npgallery.nps.gov/GetAsset/9a35816d-7a0d-40f4-b186-ba30f0ab6935.

Image Sources(Click to expand)

Michael Allen, via Wikimedia Commons: https://commons.wikimedia.org/wiki/File:LeeCountyIA_Courthouse_at_Keokuk.jpg