|McLean County Illinois Cities/Towns - Anchor, Arrowsmith, Bellflower, Bloomington (County Seat), Carlock, Chenoa, Colfax, Cooksville, Danvers, Downs, Ellsworth, Gridley, Heyworth, Hudson, Le Roy, Lexington, McLean, Normal, Saybrook, Stanford, Towanda
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McLean County is a county in the U.S. state of Illinois. As of 2000, the population was 150,433. Its county seat is Bloomington.
McLean County was formed in 1830. It was named for John McLean, United States Senator for Illinois, who died in 1830.