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Monona County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 8,751. The county seat is Onawa.
Description adapted from Wikipedia, CC BY-SA 4.0.
The area around present-day Onawa was a stopping point in 1804 for Meriwether Lewis and William Clark during their exploration of the newly obtained Louisiana Purchase. Many years later, that site was memorialized as the Lewis and Clark State Park. Monona County was formed in 1851. It was perhaps named for an Indian word meaning "beautiful valley". Monona County was organized officially in the spring of 1854 having been a part of Benton County (every county west of Benton in a line) in 1851 and afterwards Harrison County between 1852 and 1854. When Ashton (originally called Bloomfield) was named the county seat in the fall of 1854, a log house served as the first courthouse. Ashton remained the county seat for only four years. That designation was moved to Onawa on April 5, 1858, and the first Monona County Courthouse was completed that same year.
Adapted from Wikipedia, CC BY-SA 4.0.
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