Monona County

US States / H-L / Iowa / Monona County

Monona County is named for the Native American word meaning “beautiful valley”.


Surrounding County Courthouses: 

N – Woodbury County

E – Crawford County

S – Harrison County

W – Burt County, Nebraska and Thurston County, Nebraska


Created:  January 15, 1851                    Map of Iowa highlighting Monona County

County Seat:

Ashton  1851 – 1858

Onawa   1858 – present


County Courthouse – Onawa


Location:  610 Iowa Avenue / 7th Street

Built:  1891 – 1892

Style:  Romanesque Revival and Victoriann

Architect:  S E Maxon

Contractor:  P H Wind


Description: The building faces south and is a two story red colored brick and stone structure. The building is located on landscaped grounds in the center of Onawa. The building has a square brick tower extending from the building at the south entrance. The entrance is a wide arch with stone trim. Above the entrance is a large arched window with three windows on the third story. In the center of the building rises a high square brick tower with peaked roof. The building houses the County District Court of the 3B Judicial District.


See:  National Register of Historic Places – Monona County Courthouse


See:  The 3B Judicial District includes Crawford County, Ida CountyPlymouth CountySioux County and Wodbury County.


History:  The county was created in 1851 and Ashton was selected as the county seat. The first courthouse after 1851 was the Mechanics Hall. The county seat was moved to Onawa in 1858. The second courthouse was a frame structure built by the Monona Land Company at a cost of $7,000. The third and present courthouse was constructed in 1891 to 1892.




County Courthouse – Onawa







Photos taken 2008