Clinton County is located Southern Illinois. Clinton is by Washington, Marion, Madison and St. Clair
Counties. Clinton County was named for Dewitt Clinton of New York. He was the mayor, governor, senator, lawyer, financier and chief promoter of the Erie Canal. 

Some things to do in Clinton County are go to the Clinton County
Historical Society Museum in Carlyle Illinois, the County Fair, Clinton's Apple `n` Pork Festival, 1 of Illinois top 10 haunted houses and Terror on Washington Street. Carlyle has a lake for  boating, hunting and other great outdoor activities.

Clinton County's Courthouse is in Carlyle, Illinois. Some of the towns or cities  in Clinton County are
Carlyle, Posey, Hoffman, Trenton and many more.