It was listed on the National Register of Historic Places in 2003 as a part of the PWA-Era County Courthouses of IA Multiple Properties Submission.

[3] In 1938, officials campaigned voters to approve the sale of $110,000 in bonds for construction of a new courthouse based on a matching grant of $90,000 from the PWA.

Voters approved a second referendum March 25, 1940, for an amount double the earlier authorization due to no promise of PWA funding.

[5] The interior featured multi-colored terrazzo floors, marble wainscoting, and glass block in office entrances and stairwell lights.

[4] The square is planted with deciduous and coniferous trees, and the county veteran's memorial sits in front of the main entrance.