In case of an emergency, dial 911
Troop Map
| Troop 1 | Rockford | Dispatched at Sterling | JoDaviess, Stepenson, Winnebago, Carroll, Lee, Ogle, Whiteside |
| Troop 2 | Moline | Dispatched at Sterling | Rock Island, Henry, Mercer, Bureau, Putnam, LaSalle |
| Troop 3 | Chicago | Dispatched at Chicago (Des Plaines) | Boone, McHenry, Lake, DeKalb, Kane, DuPage, Cook, Kendall, Grundy, Will |
| Troop 4 | Peoria | Dispatched at Pontiac | Henderson, Warren, Hancock, McDonough, Knox, Fulton, Stark, Peoria, Marshall, Woodford, Tazewell |
| Troop 5 | Bloomington | Dispatched at Pontiac | Livingston, Kankakee, Ford, Iroquois, McLean, DeWitt |
| Troop 6 | Springfield | Dispatched at Springfield | Adams, Pike, Schuyler, Brown, Mason, Cass, Morgan, Menard, Sangamon, Logan, Christian |
| Troop 7 | Champaign | Dispatched at Pontiac | Vermillion, Champaign, Piatt, Macon, Shelby, Moultrie, Douglas, Coles, Edgar |
| Troop 8 | Metro East | Dispatched at Collinsville (eventually moved to E. St. Louis) | Calhoun, Greene, Jersey, Macoupin, Montgomery, Madison, St. Clair, Clinton, Washington, Monroe, Bond |
| Troop 9 | Effingham | Dispatched at DuQuoin | Clark, Cumberland, Fayette, Effingham, Jasper, Crawford, Marion, Clay, Richland, Lawrence, Wayne, Edwards, Wabash, Hamilton, White |
| Troop 10 | Carbondale | Dispatched at DuQuoin | Jefferson, Randolph, Perry, Franklin, Jackson, Williamson, Saline, Gallatin, Union, Johnson, Pope, Hardin, Alexander, Pulaski, Massac |
| Troop 15 | Oakbrook | Dispatched at “Oak Brook) (Lisle) | Tollway |
