List of municipalities in Illinois

"Cities in Illinois" redirects here. For unincorporated communities, see List of unincorporated communities in Illinois. For CDPs, see List of census-designated places in Illinois.

Map of the United States with Illinois highlighted

Illinois is a state located in the Midwestern United States. According to the 2020 United States census Illinois is the 6th most populous state with 12,812,508 inhabitants but the 24th largest by land area spanning 55,499.0 square miles (143,742 km2) of land.[1] Illinois is divided into 102 counties and, as of 2020, contained 1,300 municipalities consisting of cities, towns, and villages.

The most populous city is Chicago with 2,746,388 residents while the least populous is Valley City with 14 residents.[2] The largest municipality by land area is Chicago, which spans 227.73 sq mi (589.8 km2), while the smallest is Irwin at 0.045 sq mi (0.12 km2).[2]

  1. ^ "Explore Census Data". data.census.gov. Retrieved July 7, 2022.
  2. ^ a b Cite error: The named reference census was invoked but never defined (see the help page).