Greater Chicago Industrial Zone
The Greater Chicago Industrial Zone (often referred to simply as "The Zone") is a Human city on Earth, located on the continent of North America near Lake Michigan. An outgrowth of the modern-day American city of Chicago, the Zone is a vast urban sprawl covering large parts of the "former" states of Illinois, Wisconsin, and Indiana. The Great Lakes Spaceport is located nearby.
While physically located in the United States, the Zone is a de-facto independent city-state, with its citizens feeling more loyalty to it and, to a lesser extent, the United Nations than to the US government. This loss of national identity was a natural consequence of human colonization of other planets and systems.
- Industrial Zone 08 - Home to the decommissioned Tactical Autonomous Robotic Defense System testing facility.
- Lake Michigan
- Blackstone Avenue
- Halsted Street
- The Seropian
- Dog and Pony
- Gut Check
- Severe Tire Damage
 List of appearances
- ^ Halo: Contact Harvest, page 37
- ^ Halo 3: ODST: Asklon cities list poster
- ^ Halo 2, multiplayer level Foundation