CLINTON, a city of Illinois, U.S.A., on Federal highway 51 and the Illinois Central railroad, 22m. S. of Bloomington; the county seat of De Witt county. The population in 1930 was 5,92o. It is in the heart of the corn belt ; and has railroad shops and cloth ing factories. It was settled about 1836, and was incorporated as a city in 1855.