premise: Lexington County is a county located in the U.S. state of South Carolina. As of the 2010 census, the population was 262,391, and the 2016 population estimate was 286,186. Its county seat and largest town is Lexington. The county was created in 1785. Its name commemorates the Battle of Lexington in the American Revolutionary War.
hypothesis: Lexington County is underpopulated
reason: Lexington County has multiple founders