| DuPage Division |
Illinois, USA |
| Eastern Iowa Division |
IA & IL, USA |
| Fox Valley Division |
Illinois, USA |
| Gateway Division |
IL & MO, USA |
| Illinois Terminal Division |
Illinois, USA |
| Illinois Valley Division |
Illinois, USA |
| Lake Shore Model Railroad Association |
Chicago, Illinois, USA |
| NMRA Midwest Region |
IL, IN, KY, MI, & WI, USA |
| North Shore & Western Model Railroad Club |
Illinois, USA |
| Northern Illinois Lego Train Club |
Illinois, USA |
| Oak Park Model Train Club |
Oak Park, Illinois, USA |
| River City Model Railroad Club |
Pekin, Illinois, USA |
| Rock River Valley Division |
IL & WI, USA |
| Will County Model Railroad Association |
Joliet, Illinois, USA |
