Cass County (Missouri)

Cass County is a county located in the western part of the U.S. state of Missouri. As of the 2010 census, the population was 99,478. Its county seat is Harrisonville. The county was organized in 1835 as Van Buren County but was renamed in 1849 after U.S. Senator Lewis Cass of Michigan who later became a presidential candidate.Cass County is part of the Kansas City, Missouri Metropolitan Statistical Area.HistoryThe Harrisonville area was originally inhabited by the Dhegihan Native American subgroup. The Osage, Quapaw, Omaha, Ponca and Kansa tribes make up this Siouan linguistic group. The Kansa tribal range extended southward from the Kansas-Missouri River junction as far as the northern edge of Bates County, Missouri, taking in the sites of modern Pleasant Hill, Garden City, Archie and Drexel. On their southeastern border they were neighbors of the Osage, although there is no evidence that either of these tribes ever had a truly permanent settlement in the territory of Cass County.