McLean County, Illinois

McLean County is the largest county by land area in the U.S. state of Illinois. According to the 2020 Census, it had a population of 170,954. Its county seat is Bloomington. McLean County is included in the Bloomington–Normal, IL Metropolitan Statistical Area.
  • Country: United States
  • State: Illinois
  • Founded: December 25, 1830
  • Named for: John McLean
  • Seat: Bloomington
  • Largest city: Bloomington
  • Congressional districts: 16th, 17th

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Data from: en.wikipedia.org