Plattsburg is a city in and the county seat of Clinton County, Missouri and is part of the Kansas City metropolitan area in the western part of the state, within the United States.

(This has been used for a contemporary man-made lake and surrounding housing development in the city.)

After the discovery that there was an earlier Springfield, Missouri, settlers named it "Plattsburg," after Plattsburgh, New York.

[5] The area was settled chiefly by migrants from the Upper South, especially central Kentucky and western Virginia.

It was near a region called "Little Dixie" in Missouri because of the strong Southern presence.

For a brief period of time during the 1830s, Plattsburg was home to a Federal land office for areas of northern Missouri that were newly opened to settlement by European Americans after the Platte Purchase in 1836.

The area became a leading producer of both hemp and tobacco, both major commodity products of the Bluegrass Region of central Kentucky.

As the county seat, Plattsburg was a center of trade and politics, with a variety of retail stores and professions.

In 1863, elements of William Quantrill's guerrilla band captured a unit of Federal troops encamped in the county courthouse located in Plattsburg.