| Team name | Location | League | Level | Status |
|---|---|---|---|---|
| Aurora Hoodoos | Aurora, Illinois | Two-I League | professional | defunct |
| Aurora Indians | Aurora, Illinois | Two-I League | professional | defunct |
| Aurora Maroons | Aurora, Illinois | Two-I League | professional | defunct |
| Bloomington Blues | Bloomington, Illinois | Two-I League | professional | defunct |
| Burlington | Burlington, Iowa | Two-I League | professional | defunct |
| Cedar Rapids Canaries | Cedar Rapids, Iowa | Two-I League | professional | defunct |
| Champaign-Urbana Clippers | Champaign, Illinois | Two-I League | professional | defunct |
| Danville Browns | Danville, Indiana | Two-I League | professional | defunct |
| Davenport Pilgrims | Davenport, Iowa | Two-I League | professional | defunct |
| Decatur | Decatur, Illinois | Two-I League | professional | defunct |
| Dubuque Giants | Dubuque, Iowa | Two-I League | professional | defunct |
| Evansville Hoosiers | Evansville, Indiana | Two-I League | professional | defunct |
| Galesburg | Galesburg, Illinois | Two-I League | professional | defunct |
| Jacksonville Lunatics | Jacksonville, Illinois | Two-I League | professional | defunct |
| Joliet Convicts | Joliet, Illinois | Two-I League | professional | defunct |
| Joliet Giants | Joliet, Illinois | Two-I League | professional | defunct |
| Joliet Stone Citys | Joliet, Illinois | Two-I League | professional | defunct |
| Lafayette | Lafayette, Indiana | Two-I League | professional | defunct |
| Logansport | Logansport, Indiana | Two-I League | professional | defunct |
| Monmouth Maple Cities | Monmouth, Illinois | Two-I League | professional | defunct |
| Ottawa Modocs | Ottawa, Illinois | Two-I League | professional | defunct |
| Ottawa Pirates | Ottawa, Illinois | Two-I League | professional | defunct |
| Ottumwa Coal Palaces | Ottumwa, Iowa | Two-I League | professional | defunct |
| Peoria Canaries | Peoria, Illinois | Two-I League | professional | defunct |
| Peoria Distillers | Peoria, Illinois | Two-I League | professional | defunct |
| Quincy Ravens | Quincy, Illinois | Two-I League | professional | defunct |
| Rock Island-Moline Twins | Rock Island, Illinois | Two-I League | professional | defunct |
| Rockford Hustlers | Rockford, Illinois | Two-I League | professional | defunct |
| Sterling Blue Coats | Sterling, Illinois | Two-I League | professional | defunct |
| Terre Haute | Terre Haute, Indiana | Two-I League | professional | defunct |
| Terre Haute Hottentots | Terre Haute, Indiana | Two-I League | professional | defunct |