Additional
Information: Carroll County is located in the Northwestern part of Illinois, along the Mississippi River. The County Seat is Mt. Carroll, Illinois, located on US Highway 78.
Carroll County QuickFacts Carroll County QuickFacts: Highlights from the 2000 Census. Demographic data, estimated 2001 population, land area. (Carroll) http://quickfacts.census.gov/qfd/states/17/17015.html