| Agency | ILEAS Region |
| Abraham Lincoln Capital Airport Police | 6 |
| Adams County Sheriff's Office | 6 |
| Albers Police Dept | 8 |
| Altamont Police Dept | 9 |
| Annawan Police Dept | 2 |
| Arcola Police Dept | 7 |
| Assumption Police Dept | 6 |
| Auburn Police Dept | 6 |
| Avon Police Dept | 6 |
| Baldwin Police Dept | 11 |
| Bethany Police Dept | 9 |
| Blue Island Police Dept | 4 |
| Breese Police Dept | 8 |
| Brooklyn Police Dept | 8 |
| Bull Valley Police Dept | 3 |
| Byron Police Dept | 2 |
| Cairo Police Dept | 11 |
| Campton Hills Police Dept | 3 |
| Carroll County Sheriff's Office | 2 |
| Carterville Police Dept | 11 |
| Catlin Police Dept | 7 |
| Chenoa Police Dept | 7 |
| Chicago Police Dept | 4 |
| Chillicothe Police Dept | 6 |
| Christian County Sheriff's Office | 6 |
| Clinton County Sheriff's Office | 8 |
| Clinton Police Dept | 7 |
| Coles County Sheriff's Office | 9 |
| Colfax Police Dept | 7 |
| Crawford County Sheriff's Office | 9 |
| Creve Coeur Police Dept | 7 |
| Dallas City Police Dept | 6 |
| Dana Police Dept | 3 |
| Delavan Police Dept | 7 |
| Donnellson Police Dept | 8 |
| Douglas County Sheriff's Office | 7 |
| Downs Police Dept | 7 |
| DuQuoin Police Dept | 11 |
| Durand Police Dept | 2 |
| Dwight Police Dept | 7 |
| East Carondelet Police Dept | 8 |
| East St. Louis Police Dept | 8 |
| Edinburg Police Dept | 6 |
| Edwards County Sheriff's Office | 9 |
| Edwardsville Police Dept | 8 |
| Effingham Police Dept | 9 |
| El Paso Police Dept | 7 |
| Enfield Police Dept | 11 |
| Erie Police Dept | 2 |
| Ewing Police Dept | 11 |
| Fairbury Police Dept | 7 |
| Fairmount Police Dept | 7 |
| Farmer City Police Dept | 7 |
| Farmington Police Dept | 6 |
| Fillmore Police Dept | 8 |
| Findlay Police Dept | 9 |
| Flossmoor Police Dept | 4 |
| Fondulac Park Dist Police Dept | 7 |
| Ford County Sheriff's Office | 7 |
| Forest Preserve District of Will County Police Dept | 3 |
| Forreston Police Dept | 2 |
| Fox Lake Police Dept | 4 |
| Fox River Grove Police Dept | 3 |
| Fox Valley Park Dist Police Dept | 3 |
| Freeport Park District Police | 2 |
| Freeport Police Dept | 2 |
| Fulton County Sheriff's Office | 6 |
| Galva Police Dept | 2 |
| Geneseo Police Dept | 2 |
| German Valley Police Dept | 2 |
| Gilberts Police Dept | 3 |
| Girard Police Dept | 8 |
| Golf Police Dept | 4 |
| Grand Ridge Police Dept | 3 |
| Grant Park Police Dept | 3 |
| Grantfork Police Dept | 8 |
| Granville Police Dept | 2 |
| Greene County Sheriff's Office | 8 |
| Greenfield Police Dept | 8 |
| Grundy County Sheriff's Office | 3 |
| Hamel Police Dept | 8 |
| Hamilton Police Dept | 6 |
| Hampshire Police Dept | 3 |
| Hancock County Sheriff's Office | 6 |
| Havana Police Dept | 6 |
| Hebron Police Dept | 3 |
| Henry County Sheriff's Office | 2 |
| Henry Police Dept | 2 |
| Heyworth Police Dept | 7 |
| Highland Police Dept | 8 |
| Hinckley Police Dept | 3 |
| Holiday Hills Police Dept | 3 |
| Hopedale Police Dept | 7 |
| Hudson Police Dept | 7 |
| Iroquois County Sheriff's Office | 7 |
| Island Lake Police Dept | 4 |
| Jackson County Sheriff's Office | 11 |
| Jerome Police Dept | 6 |
| Jo Daviess County Sheriff's Office | 2 |
| Johnson County Sheriff's Office | 11 |
| Kane Co Forest Pres Police Dept | 3 |
| Kankakee Police Dept | 3 |
| Kansas Police Dept | 7 |
| Kendall County Sheriff's Office | 3 |
| La Grange Park Police Dept | 4 |
| La Grange Police Dept | 4 |
| Ladd Police Dept | 2 |
| Lake County Sheriff's Office | 4 |
| Lanark Police Dept | 2 |
| LaSalle County Sheriff's Office | 3 |
| LaSalle Police Dept | 3 |
| Lawrence County Sheriff's Office | 9 |
| Lawrenceville Police Dept | 9 |
| Lee County Sheriff's Office | 2 |
| Leland Police Dept | 3 |
| LeRoy Police Dept | 7 |
| Lexington Police Dept | 7 |
| Lindenhurst Police Dept | 4 |
| Livingston Police Dept | 8 |
| Logan County Sheriff's Office | 7 |
| Lyons Police Dept | 4 |
| Macon County Sheriff's Office | 7 |
| Macoupin County Sheriff's Office | 8 |
| Mahomet Police Dept | 7 |
| Manito Police Dept | 6 |
| Marine Police Dept | 8 |
| Marseilles Police Dept | 3 |
| Marshall County Sheriff's Office | 2 |
| Maywood Police Dept | 4 |
| McClure Police Dept | 11 |
| McCook Police Dept | 4 |
| McLean County Sheriff's Office | 7 |
| McLean Police Dept | 7 |
| McLeansboro Police Dept | 11 |
| Merrionette Park Police Dept | 4 |
| Metra Police Dept | 4 |
| Metropolitan Airport Auth Police | 2 |
| Milledgeville Police Dept | 2 |
| Millstadt Police Dept | 8 |
| Minier Police Dept | 7 |
| Momence Police Dept | 3 |
| Monee Police Dept | 3 |
| Morgan County Sheriff's Office | 6 |
| Morrison Police Dept | 2 |
| Morrisonville Police Dept | 6 |
| Mounds Police Dept | 11 |
| Mount Morris Police Dept | 2 |
| Mount Pulaski Police Dept | 7 |
| Mount Sterling Police Dept | 6 |
| Mount Zion Police Dept | 7 |
| Moweaqua Police Dept | 9 |
| Murrayville Police Dept | 6 |
| Naperville Police Dept | 4 |
| Naplate Police Dept | 3 |
| Nauvoo Police Dept | 6 |
| New Athens Police Dept | 8 |
| Normal Police Dept | 7 |
| Norris City Police Dept | 11 |
| North Aurora Police Dept | 3 |
| North Riverside Police Dept | 4 |
| Northfield Police Dept | 4 |
| Oakwood Hills Police Dept | 3 |
| Ogle County Sheriff's Office | 2 |
| Palestine Police Dept | 9 |
| Pana Police Dept | 6 |
| Pawnee Police Dept | 6 |
| Pecatonica Police Dept | 2 |
| Peoria County Sheriff's Office | 6 |
| Peotone Police Dept | 3 |
| Pike County Sheriff's Office | 6 |
| Pleasant Hill Police Dept | 6 |
| Pleasant Plains Police Dept | 6 |
| Polo Police Dept | 2 |
| Prairie Grove Police Dept | 3 |
| Prospect Heights Police Dept | 4 |
| Pulaski County Sheriff's Office | 11 |
| Randolph County Sheriff's Office | 11 |
| Red Bud Police Dept | 11 |
| Richland County Sheriff's Office | 9 |
| Richmond Police Dept | 3 |
| Ridge Farm Police Dept | 7 |
| River Grove Police Dept | 4 |
| Roodhouse Police Dept | 8 |
| Rossville Police Dept | 7 |
| Round Lake Heights Police Dept | 4 |
| Roxana Police Dept | 8 |
| Rushville Police Dept | 6 |
| Saint Elmo Police Dept | 9 |
| Sandoval Police Dept | 9 |
| Sangamon County Sheriff's Office | 6 |
| Sauget Police Dept | 8 |
| Savanna Police Dept | 2 |
| Schuyler County Sheriff's Office | 6 |
| Scott County Sheriff's Office | 6 |
| Shannon Police Dept | 2 |
| Shelby County Sheriff's Office | 9 |
| Sparta Police Dept | 11 |
| Spring Grove Police Dept | 3 |
| Springfield Park Dist Police Dept | 6 |
| St Jacob Police Dept | 8 |
| Stanford Police Dept | 7 |
| Staunton Police Dept | 8 |
| Stephenson County Sheriff's Office | 2 |
| Stonington Police Dept | 6 |
| Streator Police Dept | 3 |
| Trenton Police Dept | 8 |
| Tuscola Police Dept | 7 |
| Valmeyer Police Dept | 8 |
| Vandalia Police Dept | 9 |
| Vienna Police Dept | 11 |
| Villa Grove Police Dept | 7 |
| Virden Police Dept | 8 |
| Waterloo Police Dept | 8 |
| Wayne Police Dept | 4 |
| West City Police Dept | 11 |
| Westville Police Dept | 7 |
| Wheeling Police Dept | 4 |
| White County Sheriff's Office | 11 |
| Whiteside County Sheriff's Office | 2 |
| Williamson Police Dept - Defunct | |
| Wilmington Police Dept | 3 |
| Winchester Police Dept | 6 |
| Winnebago Police Dept | 2 |
| Wonder Lake Police Dept | 3 |
| Worden Police Dept | 8 |
| Zeigler Police Dept | 11 |