Chicago was a large city in the U.S state of Illinois and was the largest city in the American Midwest and the Third most popolous city in the same country.
As Charlie Frost had predicted during the 2012 apocalypse, Chicago was one of the many cities destroyed by the Yellowstone ash cloud hours after the Yellowstone Caldera erupted. Then the city was swept away during the Worldwide Flooding.
In the aftermath of the apocalypse, Chicago was left with extreme damage from the earthquakes, ash cloud and tsunamis and is rendered uninhabitable.
- Though Chicago was never seen, it is likely that the city was destroyed along with the rest of the world during the 2012 apocalypse.