LaSalle County, Illinois

LaSalle County is located in the North Central region of the U.S. state of Illinois. It has an population of 109,658 in 2020.[1] Its county seat and largest city is Ottawa.[2]

  1. "QuickFacts: LaSalle County, Illinois". United States Census Bureau. Retrieved August 11, 2023.
  2. "Find a County". National Association of Counties. Archived from the original on 2011-05-31. Retrieved 2011-06-07.

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