Northern Illinois

This article is about the geographic region. For the university, see Northern Illinois University. For that school's athletic program, see Northern Illinois Huskies.
Northern Illinois
Region of Illinois
Chicago, Illinois
Chicago, Illinois
Counties that are colored red are considered a part of the Northern Illinois region.
Counties that are colored red are considered a part of the Northern Illinois region.
Country United States
State Illinois
Largest cityChicago
Population
9.7 million

Northern Illinois is a region generally covering the northern third of the U.S. state of Illinois.[1][2] The region is by far the most populous of Illinois, with nearly 9.7 million residents as of 2010.

  1. ^ "Regions of Illinois". Illinois Department of Natural Resources. Retrieved 4 October 2013.
  2. ^ "Illinois Regions". Illinois Environmental Protection Agency. Retrieved 4 October 2013.