Carroll County

  • County Seat:
    Mount Carroll
  • Previous Seats:
    Savanna, 1839; Mount Carroll, 1844
  • Area:
    468 square miles
  • Population:
    1,023 (1840 Census) - 15,387 (2010 Census)
  • Named for:
    John Carroll of Carrollton, Signer of Declaration of Independence
  • Created on:
    February 22, 1839
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