Adams County, Illinois

county in Illinois, United States

Adams County is the westernmost county of the U.S. state of Illinois. As of the 2010 census, the population was 67,103.[1] Its county seat is Quincy.[2] Its name is in honor of the sixth President of the United States, John Quincy Adams.

Adams County was founded in 1825.


  1. "State & County QuickFacts". United States Census Bureau. Archived from the original on July 6, 2011. Retrieved July 3, 2014.
  2. "Find a County". National Association of Counties. Archived from the original on 2011-05-31. Retrieved 2011-06-07.