A radius map showing the Chicagoland area. Zone 1 - Downtown Chicago, Zone 2 - Chicago, Zone 3 - Outer Chicago City Limits and Inner Suburbs, Zone 4 - Ring Suburbs, Zone 5 - Newly Developing Suburbs, Zone 6 - Possible Future Development in Chicagoland.

Chicagoland is an informal name for the greater area surrounding Chicago. It has a population of about 9,443,356 (2005 est.) and an area of about 10,874 mi². It extends over 3 midwest states, and consists of about 12 counties:


  • Cook County
  • DuPage County
  • Grundy County
  • Kane County
  • Kankakee County
  • Lake County
  • McHenry County


  • Lake County
  • Porter County


  • Kenosha County

The term originated in the pages of the Chicago Tribune in the 1900s.

Smallwikipedialogo.png This page uses content from Wikipedia. The original article was at Chicagoland. The list of authors can be seen in the page history. As with Chicago, the text of Wikipedia is available under the GNU Free Documentation License.