[5][6] For many millennia, the Great Plains of North America was inhabited by nomadic Native Americans.

In 1802, Spain returned most of the land to France, but keeping title to about 7,500 square miles.

In 1803, most of the land for modern day Kansas was acquired by the United States from France as part of the 828,000 square mile Louisiana Purchase for 2.83 cents per acre.

Explorers in the early 19th century came across abandoned mining sites along a creek south of the Marais des Cygnes river.

[8] Linn County is included in the Kansas City, MO-KS Metropolitan Statistical Area.

Following amendment to the Kansas Constitution in 1986, the county remained a prohibition, or "dry", county until 2004, when voters approved the sale of alcoholic liquor by the individual drink with a 30 percent food sales requirement.

[17] † means a community is designated a Census-Designated Place (CDP) by the United States Census Bureau.