Grundy County, Illinois

county in Illinois, United States

Grundy County is a county in the U.S. state of Illinois. According to the 2020 census, it has a population of 52,533.[1] Its county seat is Morris.[2]


  1. "QuickFacts: Grundy 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.