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Clinton County is a county located in the state of Missouri. Based on the 2010 census, the county had a population of 20,743. Its county
seat is Plattsburg. The county was organized January 2, 1833 and named for Governor DeWitt Clinton of New York. The county seat of Plattsburg
derives it name from a town of a similar name that is the county seat of Clinton County, New York, which was also named for the Governor.
Clinton County is part of the Kansas City, MO-KS Metropolitan Statistical Area.
Named for DeWitt Clinton, governor of New York.
County QuickFacts: CensusBureau Quick Facts
A few people settled in Clinton County as early as 1828, but a permanent settlement did not properly begin until 1833. This county, like many others in Missouri, was named in honor of one of America's most famous men De Witt Clinton, Governor of New York and well known because of his carrying through the construction of the Erie Canal. Clinton died February 11, 1828. The county was organized from a part of Clay, in 1833. It was reduced to its present limits in 1841. (Eaton; Campbell, p. 161; HIST. OF HARRISON, 1921, p. 119; SESSION LAWS, 1832, p. 47)
Source: Ewing, Martha K. "Place Names In The Northwest Counties Of Missouri." M.A. thesis., University of Missouri-Columbia, 1929.
As reported by the Census Bureau, the county has a total area of 423 square miles (1,100 km2), of which 419 square miles (1,090 km2) is
land and 4.5 square miles (12 km2) (1.1%) is water
Bordering counties are as follows:
Cameron R-I School District - Cameron
Clinton County R-III School District - Plattsburg
East Buchanan County C-1 School District - Gower
Lathrop R-II School District - Lathrop