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Greene County is a county located in the state of Illinois. According to the 2010 census, it has a population of 13,886. Greene County was created on January 20, 1821. The county seat is Carrollton. The county is named for Nathanael Greene (1742-1786), Major General in the Continental Army.
Greene County was named for General Nathaniel Greene who was born in 1742 and died in 1786. He was a Major General in the American Revolution and became famous for his service in the southern region of the 13 colonies.
County QuickFacts: CensusBureau Quick Facts
Greene County was created on January 20, 1821 (Laws, 1821, p. 26) and was formed from Madison County. Present area,
or parts of it, formerly included in: Madison County (1812-1821) and St. Clair County (1790-1812).
The County was named for Nathaniel Greene, a Major General in the Revolution, who distinguished himself as commander in the Southern Colonies. The County Seat is Carrollton (1821-Present).
The county has a notable archaeological area known as the Koster Site, at which evidence of more than 7,000 years of human habitation has been
excavated. Exhibits of artifacts from the site are displayed at the Center for American Archeology in Kampsville, Illinois.
As reported by the Census Bureau, the county has a total area of 546 square miles (1,415 km2), of which, 543 square miles (1,407 km2) of it is land and 3 square miles (8 km2) of it (0.59%) is water.
Greene county is located in southwest Illinois. Part of the Two
Rivers National Wildlife Refuge is located in this county.
Bordering counties are as follows: