| Category | Subcategory | Lat | Lon | Range |
|---|---|---|---|---|
| Departments | Energy / Argonne National Laboratory (Lemont) | 41.71368 | -87.98055 | 2 |
| Departments | Energy / Fermilab (Batavia) | 41.84516 | -88.23663 | 3 |
| Departments | United States Postal Service | 41.91505 | -88.10386 | 4 |
| Military | Civil Air Patrol | 41.82494 | -88.24029 | 18 |
