| Police department | County |
|---|---|
| Addison Police Department | Dupage |
| Albany Police Department | Whiteside |
| Albers Police Department | Clinton |
| Albion Police Department | Edwards |
| Aledo Police Department | Mercer |
| Alexis Police Department | Mercer |
| Algonquin Police Department | Kane |
| Alpha Police Department | Henry |
| Alsip Police Department | Cook |
| Altamont Police Department | Effingham |
| Alton Police Department | Madison |
| Amboy Police Department | Lee |
| Anna Police Department | Union |
| Annawan Police Department | Henry |
| Antioch Police Department | Lake |
| Apple River Police Department | Jo Daviess |
| Arcola Police Department | Douglas |
| Arlington Heights Police Department | Cook |
| Arthur Police Department | Douglas |
| Ashland Police Department | Cass |
| Assumption Police Department | Christian |
| Athens Police Department | Menard |
| Atkinson Police Department | Henry |
| Atlanta Police Department | Logan |
| Atwood Police Department | Douglas |
| Auburn Police Department | Sangamon |
| Aurora Police Department | Dupage |
| Aviston Police Department | Clinton |
| Avon Police Department | Fulton |
| Baldwin Police Department | Randolph |
| Bannockburn Police Department | Lake |
| Barrington Hills Police Department | Cook |
| Barrington Police Department | Cook |
| Bartlett Police Department | Cook |
| Bartonville Police Department | Peoria |
| Batavia Police Department | Kane |
| Beardstown Police Department | Cass |
| Beckemeyer Police Department | Clinton |
| Bedford Park Police Department | Cook |
| Beecher Police Department | Will |
| Belleville Police Department | St Clair |
| Bellwood Police Department | Cook |
| Belvidere Police Department | Boone |
| Bement Police Department | Piatt |
| Bensenville Police Department | Dupage |
| Benton Police Department | Franklin |
| Berkeley Police Department | Cook |
| Berwyn Police Department | Cook |
| Bethalto Police Department | Madison |
| Bethany Police Department | Moultrie |
| Blandinsville Police Department | Mcdonough |
| Bloomingdale Police Department | Dupage |
| Bloomington Police Department | Mclean |
| Blue Island Police Department | Cook |
| Blue Mound Police Department | Macon |
| Bluffs Police Department | Scott |
| Bolingbrook Police Department | Dupage |
| Bourbonnais Police Department | Kankakee |
| Bradford Police Department | Stark |
| Bradley Police Department | Kankakee |
| Braidwood Police Department | Grundy |
| Breese Police Department | Clinton |
| Bridgeport Police Department | Lawrence |
| Bridgeview Police Department | Cook |
| Brighton Police Department | Jersey |
| Broadview Police Department | Cook |
| Brookfield Police Department | Cook |
| Brooklyn Police Department | St Clair |
| Brookport Police Department | Massac |
| Buda Police Department | Bureau |
| Buffalo Grove Police Department | Cook |
| Buffalo-Mechanicsburg Police Department | Sangamon |
| Bull Valley Police Department | Mchenry |
| Bunker Hill Police Department | Macoupin |
| Burbank Police Department | Cook |
| Bureau Police Department | Bureau |
| Burnham Police Department | Cook |
| Burr Ridge Police Department | Cook |
| Bushnell Police Department | Mcdonough |
| Byron Police Department | Ogle |
| Cahokia Heights Police Department | St Clair |
| Cairo Police Department | Alexander |
| Calumet City Police Department | Cook |
| Calumet Park Police Department | Cook |
| Cambria Police Department | Williamson |
| Cambridge Police Department | Henry |
| Camp Point Police Department | Adams |
| Campton Hills Police Department | Kane |
| Canton Police Department | Fulton |
| Carbondale Police Department | Jackson |
| Carlinville Police Department | Macoupin |
| Carlyle Police Department | Clinton |
| Carmi Police Department | White |
| Carol Stream Police Department | Dupage |
| Carpentersville Police Department | Kane |
| Carrier Mills Police Department | Saline |
| Carrollton Police Department | Greene |
| Carterville Police Department | Williamson |
| Carthage Police Department | Hancock |
| Cary Police Department | Mchenry |
| Casey Police Department | Clark |
| Caseyville Police Department | St Clair |
| Catlin Police Department | Vermilion |
| Central City Police Department | Marion |
| Centralia Police Department | Clinton |
| Chadwick Police Department | Carroll |
| Champaign Police Department | Champaign |
| Chandlerville Police Department | Cass |
| Channahon Police Department | Grundy |
| Charleston Police Department | Coles |
| Chatham Police Department | Sangamon |
| Chenoa Police Department | Mclean |
| Cherry Police Department | Bureau |
| Cherry Valley Police Department | Boone |
| Chester Police Department | Randolph |
| Chicago Heights Police Department | Cook |
| Chicago Police Department | Cook |
| Chicago Ridge Police Department | Cook |
| Chillicothe Police Department | Peoria |
| Chrisman Police Department | Edgar |
| Christopher Police Department | Franklin |
| Cicero Police Department | Cook |
| Clarendon Hills Police Department | Dupage |
| Clifton Police Department | Iroquois |
| Clinton Police Department | Dewitt |
| Coal City Police Department | Grundy |
| Coal Valley Police Department | Henry |
| Cobden Police Department | Union |
| Coffeen Police Department | Montgomery |
| Colchester Police Department | Mcdonough |
| Colfax Police Department | Mclean |
| Collinsville Police Department | Madison |
| Colona Police Department | Henry |
| Columbia Police Department | Monroe |
| Cortland Police Department | Dekalb |
| Coulterville Police Department | Randolph |
| Country Club Hills Police Department | Cook |
| Countryside Police Department | Cook |
| Cowden Police Department | Shelby |
| Crest Hill Police Department | Will |
| Crestwood Police Department | Cook |
| Crete Police Department | Will |
| Creve Coeur Police Department | Tazewell |
| Crystal Lake Police Department | Mchenry |
| Dallas City Police Department | Hancock |
| Dana Police Department | La Salle |
| Danvers Police Department | Mclean |
| Danville Police Department | Vermilion |
| Darien Police Department | Dupage |
| De Pue Police Department | Bureau |
| De Soto Police Department | Jackson |
| Decatur Police Department | Macon |
| Deer Creek Police Department | Tazewell |
| Deerfield Police Department | Cook |
| DeKalb Police Department | Dekalb |
| Delavan Police Department | Tazewell |
| Des Plaines Police Department | Cook |
| Diamond Police Department | Grundy |
| Divernon Police Department | Sangamon |
| Dixmoor Police Department | Cook |
| Dixon Police Department | Lee |
| Dolton Police Department | Cook |
| Dongola Police Department | Union |
| Donnellson Police Department | Bond |
| Downers Grove Police Department | Dupage |
| Downs Police Department | Mclean |
| Du Quoin Police Department | Perry |
| Dunfermline Police Department | Fulton |
| Dupo Police Department | St Clair |
| Durand Police Department | Winnebago |
| Dwight Police Department | Grundy |
| Earlville Police Department | La Salle |
| East Alton Police Department | Madison |
| East Carondelet Police Department | St Clair |
| East Dubuque Police Department | Jo Daviess |
| East Dundee Police Department | Kane |
| East Hazel Crest Police Department | Cook |
| East Moline Police Department | Rock Island |
| East Peoria Police Department | Tazewell |
| East St. Louis Police Department | St Clair |
| Easton Police Department | Mason |
| Edinburg Police Department | Christian |
| Edwardsville Police Department | Madison |
| Effingham Police Department | Effingham |
| El Paso Police Department | Woodford |
| Elburn Police Department | Kane |
| Eldorado Police Department | Saline |
| Elgin Police Department | Cook |
| Elizabeth Police Department | Jo Daviess |
| Elk Grove Village Police Department | Cook |
| Ellis Grove Police Department | Randolph |
| Elmhurst Police Department | Cook |
| Elmwood Park Police Department | Cook |
| Elmwood Police Department | Peoria |
| Elwood Police Department | Will |
| Energy Police Department | Williamson |
| Enfield Police Department | White |
| Equality Police Department | Gallatin |
| Erie Police Department | Whiteside |
| Essex Police Department | Kankakee |
| Eureka Police Department | Woodford |
| Evanston Police Department | Cook |
| Evergreen Park Police Department | Cook |
| Fairbury Police Department | Livingston |
| Fairfield Police Department | Wayne |
| Fairmont City Police Department | Madison |
| Fairmount Police Department | Vermilion |
| Fairview Heights Police Department | St Clair |
| Fairview Police Department | Fulton |
| Farina Police Department | Fayette |
| Farmer City Police Department | Dewitt |
| Farmersville Police Department | Montgomery |
| Farmington Police Department | Fulton |
| Findlay Police Department | Shelby |
| Fisher Police Department | Champaign |
| Fithian Police Department | Vermilion |
| Flora Police Department | Clay |
| Flossmoor Police Department | Cook |
| Forest City Police Department | Mason |
| Forest Park Police Department | Cook |
| Forest View Police Department | Cook |
| Forreston Police Department | Ogle |
| Fox Lake Police Department | Lake |
| Fox River Grove Police Department | Lake |
| Frankfort Police Department | Will |
| Franklin Grove Police Department | Lee |
| Franklin Park Police Department | Cook |
| Freeburg Police Department | St Clair |
| Freeport Police Department | Stephenson |
| Fulton Police Department | Whiteside |
| Galena Police Department | Jo Daviess |
| Galesburg Police Department | Knox |
| Galva Police Department | Henry |
| Geneseo Police Department | Henry |
| Geneva Police Department | Kane |
| Genoa Police Department | Dekalb |
| Georgetown Police Department | Vermilion |
| German Valley Police Department | Stephenson |
| Germantown Police Department | Clinton |
| Gibson City Police Department | Ford |
| Gifford Police Department | Champaign |
| Gilberts Police Department | Kane |
| Gillespie Police Department | Macoupin |
| Girard Police Department | Macoupin |
| Glasford Police Department | Peoria |
| Glen Carbon Police Department | Madison |
| Glen Ellyn Police Department | Dupage |
| Glencoe Police Department | Cook |
| Glendale Heights Police Department | Dupage |
| Glenview Police Department | Cook |
| Glenwood Police Department | Cook |
| Godley Police Department | Grundy |
| Golf Police Department | Cook |
| Goodfield Police Department | Tazewell |
| Goreville Police Department | Johnson |
| Grafton Police Department | Jersey |
| Grand Ridge Police Department | La Salle |
| Grand Tower Police Department | Jackson |
| Grandview Police Department | Sangamon |
| Granite City Police Department | Madison |
| Grant Park Police Department | Kankakee |
| Grantfork Police Department | Madison |
| Granville Police Department | Putnam |
| Grayslake Police Department | Lake |
| Grayville Police Department | Edwards |
| Green Valley Police Department | Tazewell |
| Greenfield Police Department | Greene |
| Greenup Police Department | Cumberland |
| Greenview Police Department | Menard |
| Greenville Police Department | Bond |
| Gulfport Police Department | Henderson |
| Gurnee Police Department | Lake |
| Hamel Police Department | Madison |
| Hamilton Police Department | Hancock |
| Hampshire Police Department | Kane |
| Hanover Park Police Department | Cook |
| Hanover Police Department | Jo Daviess |
| Hardin Police Department | Calhoun |
| Harrisburg Police Department | Saline |
| Hartford Police Department | Madison |
| Harvard Police Department | Mchenry |
| Harvey Police Department | Cook |
| Harwood Heights Police Department | Cook |
| Havana Police Department | Mason |
| Hawthorn Woods Police Department | Lake |
| Hazel Crest Police Department | Cook |
| Hebron Police Department | Mchenry |
| Henning Police Department | Vermilion |
| Henry Police Department | Marshall |
| Herrin Police Department | Williamson |
| Herscher Police Department | Kankakee |
| Heyworth Police Department | Mclean |
| Hickory Hills Police Department | Cook |
| Highland Park Police Department | Lake |
| Highland Police Department | Madison |
| Highwood Police Department | Lake |
| Hillsboro Police Department | Montgomery |
| Hillsdale Police Department | Rock Island |
| Hillside Police Department | Cook |
| Hinckley Police Department | Dekalb |
| Hinsdale Police Department | Cook |
| Hodgkins Police Department | Cook |
| Hoffman Estates Police Department | Cook |
| Holiday Hills Police Department | Mchenry |
| Homer Glen Police Department | Will |
| Hometown Police Department | Cook |
| Homewood Police Department | Cook |
| Hoopeston Police Department | Vermilion |
| Hopedale Police Department | Tazewell |
| Hudson Police Department | Mclean |
| Huntley Police Department | Kane |
| Hurst Police Department | Williamson |
| Hutsonville Police Department | Crawford |
| Ina Police Department | Jefferson |
| Indian Head Park Police Department | Cook |
| Indianola Police Department | Vermilion |
| Inverness Police Department | Cook |
| Irving Police Department | Montgomery |
| Irvington Police Department | Washington |
| Island Lake Police Department | Lake |
| Itasca Police Department | Dupage |
| Iuka Police Department | Marion |
| Jacksonville Police Department | Morgan |
| Jerome Police Department | Sangamon |
| Jerseyville Police Department | Jersey |
| Johnsburg Police Department | Mchenry |
| Johnston City Police Department | Williamson |
| Joliet Police Department | Kendall |
| Jonesboro Police Department | Union |
| Justice Police Department | Cook |
| Kankakee Police Department | Kankakee |
| Kansas Police Department | Edgar |
| Kenilworth Police Department | Cook |
| Kewanee Police Department | Henry |
| Kildeer Police Department | Lake |
| Kincaid Police Department | Christian |
| Kingston Police Department | Dekalb |
| Kirkland Police Department | Dekalb |
| Knoxville Police Department | Knox |
| La Grange Park Police Department | Cook |
| La Grange Police Department | Cook |
| La Harpe Police Department | Hancock |
| La Moille Police Department | Bureau |
| La Salle Police Department | La Salle |
| Lacon Police Department | Marshall |
| Ladd Police Department | Bureau |
| Lake Bluff Police Department | Lake |
| Lake Forest Police Department | Lake |
| Lake in the Hills Police Department | Mchenry |
| Lake Villa Police Department | Lake |
| Lake Zurich Police Department | Lake |
| Lakemoor Police Department | Lake |
| Lakewood Police Department | Mchenry |
| Lanark Police Department | Carroll |
| Lansing Police Department | Cook |
| Lawrenceville Police Department | Lawrence |
| Le Roy Police Department | Mclean |
| Lebanon Police Department | St Clair |
| Leland Grove Police Department | Sangamon |
| Leland Police Department | La Salle |
| Lemont Police Department | Cook |
| Lena Police Department | Stephenson |
| Lewistown Police Department | Fulton |
| Lexington Police Department | Mclean |
| Libertyville Police Department | Lake |
| Lincoln Police Department | Logan |
| Lincolnshire Police Department | Lake |
| Lincolnwood Police Department | Cook |
| Lindenhurst Police Department | Lake |
| Lisle Police Department | Dupage |
| Litchfield Police Department | Montgomery |
| Livingston Police Department | Madison |
| Loami Police Department | Sangamon |
| Lockport Police Department | Will |
| Lombard Police Department | Dupage |
| Loves Park Police Department | Boone |
| Lovington Police Department | Moultrie |
| Ludlow Police Department | Champaign |
| Lynwood Police Department | Cook |
| Lyons Police Department | Cook |
| Machesney Park Police Department | Winnebago |
| Mackinaw Police Department | Tazewell |
| Macomb Police Department | Mcdonough |
| Madison Police Department | Madison |
| Mahomet Police Department | Champaign |
| Manhattan Police Department | Will |
| Manito Police Department | Mason |
| Mansfield Police Department | Piatt |
| Manteno Police Department | Kankakee |
| Maple Park Police Department | Dekalb |
| Marengo Police Department | Mchenry |
| Marine Police Department | Madison |
| Marion Police Department | Williamson |
| Marissa Police Department | St Clair |
| Markham Police Department | Cook |
| Maroa Police Department | Macon |
| Marquette Heights Police Department | Tazewell |
| Marseilles Police Department | La Salle |
| Marshall Police Department | Clark |
| Martinsville Police Department | Clark |
| Maryville Police Department | Madison |
| Mascoutah Police Department | St Clair |
| Mason City Police Department | Mason |
| Matteson Police Department | Cook |
| Mattoon Police Department | Coles |
| Maywood Police Department | Cook |
| Mazon Police Department | Grundy |
| McCook Police Department | Cook |
| McCullom Lake Police Department | Mchenry |
| McHenry Police Department | Mchenry |
| McLean Police Department | Mclean |
| McLeansboro Police Department | Hamilton |
| Melrose Park Police Department | Cook |
| Mendota Police Department | La Salle |
| Meredosia Police Department | Morgan |
| Merrionette Park Police Department | Cook |
| Metamora Police Department | Woodford |
| Metropolis Police Department | Massac |
| Midlothian Police Department | Cook |
| Milan Police Department | Rock Island |
| Milford Police Department | Iroquois |
| Milledgeville Police Department | Carroll |
| Millstadt Police Department | St Clair |
| Minier Police Department | Tazewell |
| Minooka Police Department | Grundy |
| Mokena Police Department | Will |
| Moline Police Department | Rock Island |
| Momence Police Department | Kankakee |
| Monee Police Department | Will |
| Monmouth Police Department | Warren |
| Montgomery Police Department | Kane |
| Monticello Police Department | Piatt |
| Morris Police Department | Grundy |
| Morrison Police Department | Whiteside |
| Morrisonville Police Department | Christian |
| Morton Grove Police Department | Cook |
| Morton Police Department | Tazewell |
| Mounds Police Department | Pulaski |
| Mount Carmel Police Department | Wabash |
| Mount Carroll Police Department | Carroll |
| Mount Morris Police Department | Ogle |
| Mount Olive Police Department | Macoupin |
| Mount Prospect Police Department | Cook |
| Mount Pulaski Police Department | Logan |
| Mount Sterling Police Department | Brown |
| Mount Vernon Police Department | Jefferson |
| Mount Zion Police Department | Macon |
| Moweaqua Police Department | Christian |
| Mundelein Police Department | Lake |
| Murphysboro Police Department | Jackson |
| Murrayville Police Department | Morgan |
| Naperville Police Department | Dupage |
| Nashville Police Department | Washington |
| Nauvoo Police Department | Hancock |
| Neoga Police Department | Cumberland |
| Neponset Police Department | Bureau |
| New Athens Police Department | St Clair |
| New Baden Police Department | Clinton |
| New Berlin Police Department | Sangamon |
| New Lenox Police Department | Will |
| New Windsor Police Department | Mercer |
| Newman Police Department | Douglas |
| Newton Police Department | Jasper |
| Niles Police Department | Cook |
| Nokomis Police Department | Montgomery |
| Normal Police Department | Mclean |
| Norridge Police Department | Cook |
| Norris City Police Department | White |
| North Aurora Police Department | Kane |
| North Chicago Police Department | Lake |
| North Pekin Police Department | Tazewell |
| North Riverside Police Department | Cook |
| North Utica Police Department | La Salle |
| Northbrook Police Department | Cook |
| Northfield Police Department | Cook |
| Northlake Police Department | Cook |
| O'Fallon Police Department | St Clair |
| Oak Brook Police Department | Cook |
| Oak Forest Police Department | Cook |
| Oak Lawn Police Department | Cook |
| Oak Park Police Department | Cook |
| Oakbrook Terrace Police Department | Dupage |
| Oakwood Hills Police Department | Mchenry |
| Oakwood Police Department | Vermilion |
| Oblong Police Department | Crawford |
| Oglesby Police Department | La Salle |
| Okawville Police Department | Washington |
| Olney Police Department | Richland |
| Olympia Fields Police Department | Cook |
| Onarga Police Department | Iroquois |
| Oquawka Police Department | Henderson |
| Oregon Police Department | Ogle |
| Orion Police Department | Henry |
| Orland Hills Police Department | Cook |
| Orland Park Police Department | Cook |
| Oswego Police Department | Kendall |
| Ottawa Police Department | La Salle |
| Palatine Police Department | Cook |
| Palestine Police Department | Crawford |
| Palmyra Police Department | Macoupin |
| Palos Heights Police Department | Cook |
| Palos Hills Police Department | Cook |
| Palos Park Police Department | Cook |
| Pana Police Department | Christian |
| Paris Police Department | Edgar |
| Park City Police Department | Lake |
| Park Forest Police Department | Cook |
| Park Ridge Police Department | Cook |
| Patoka Police Department | Marion |
| Pawnee Police Department | Sangamon |
| Paxton Police Department | Ford |
| Pecatonica Police Department | Winnebago |
| Pekin Police Department | Tazewell |
| Peoria Heights Police Department | Peoria |
| Peoria Police Department | Peoria |
| Peotone Police Department | Will |
| Peru Police Department | Bureau |
| Petersburg Police Department | Menard |
| Phoenix Police Department | Cook |
| Pierron Police Department | Bond |
| Pinckneyville Police Department | Perry |
| Pingree Grove Police Department | Kane |
| Pittsfield Police Department | Pike |
| Plainfield Police Department | Kendall |
| Plano Police Department | Kendall |
| Pleasant Plains Police Department | Sangamon |
| Pocahontas Police Department | Bond |
| Polo Police Department | Ogle |
| Pontiac Police Department | Livingston |
| Pontoon Beach Police Department | Madison |
| Posen Police Department | Cook |
| Potomac Police Department | Vermilion |
| Prairie du Rocher Police Department | Randolph |
| Prairie Grove Police Department | Mchenry |
| Princeton Police Department | Bureau |
| Prophetstown Police Department | Whiteside |
| Prospect Heights Police Department | Cook |
| Quincy Police Department | Adams |
| Ramsey Police Department | Fayette |
| Rantoul Police Department | Champaign |
| Raymond Police Department | Montgomery |
| Red Bud Police Department | Randolph |
| Richmond Police Department | Mchenry |
| Richton Park Police Department | Cook |
| Ridge Farm Police Department | Vermilion |
| Ridgway Police Department | Gallatin |
| River Forest Police Department | Cook |
| River Grove Police Department | Cook |
| Riverdale Police Department | Cook |
| Riverside Police Department | Cook |
| Riverton Police Department | Sangamon |
| Riverwoods Police Department | Lake |
| Robbins Police Department | Cook |
| Robinson Police Department | Crawford |
| Rochelle Police Department | Ogle |
| Rochester Police Department | Sangamon |
| Rock Falls Police Department | Whiteside |
| Rock Island Police Department | Rock Island |
| Rockdale Police Department | Will |
| Rockford Police Department | Ogle |
| Rockton Police Department | Winnebago |
| Rolling Meadows Police Department | Cook |
| Romeoville Police Department | Will |
| Roodhouse Police Department | Greene |
| Roscoe Police Department | Winnebago |
| Roselle Police Department | Cook |
| Rosemont Police Department | Cook |
| Rossville Police Department | Vermilion |
| Round Lake Beach Police Department | Lake |
| Round Lake Heights Police Department | Lake |
| Round Lake Park Police Department | Lake |
| Round Lake Police Department | Lake |
| Roxana Police Department | Madison |
| Royalton Police Department | Franklin |
| Ruma Police Department | Randolph |
| Rushville Police Department | Schuyler |
| Salem Police Department | Marion |
| San Jose Police Department | Logan |
| Sandoval Police Department | Marion |
| Sandwich Police Department | Dekalb |
| Sauget Police Department | St Clair |
| Sauk Village Police Department | Cook |
| Savanna Police Department | Carroll |
| Schaumburg Police Department | Cook |
| Schiller Park Police Department | Cook |
| Seneca Police Department | Grundy |
| Sesser Police Department | Franklin |
| Shannon Police Department | Carroll |
| Shawneetown Police Department | Gallatin |
| Shelbyville Police Department | Shelby |
| Sheldon Police Department | Iroquois |
| Sheridan Police Department | La Salle |
| Sherman Police Department | Sangamon |
| Shiloh Police Department | St Clair |
| Shorewood Police Department | Will |
| Sidell Police Department | Vermilion |
| Silvis Police Department | Rock Island |
| Skokie Police Department | Cook |
| Sleepy Hollow Police Department | Kane |
| Smithton Police Department | St Clair |
| Somonauk Police Department | Dekalb |
| Sorento Police Department | Bond |
| South Barrington Police Department | Cook |
| South Beloit Police Department | Winnebago |
| South Chicago Heights Police Department | Cook |
| South Elgin Police Department | Kane |
| South Holland Police Department | Cook |
| South Jacksonville Police Department | Morgan |
| South Pekin Police Department | Tazewell |
| South Roxana Police Department | Madison |
| Southern View Police Department | Sangamon |
| Sparta Police Department | Randolph |
| Spring Grove Police Department | Mchenry |
| Spring Valley Police Department | Bureau |
| Springfield Police Department | Sangamon |
| St. Anne Police Department | Kankakee |
| St. Charles Police Department | Dupage |
| St. Elmo Police Department | Fayette |
| St. Francisville Police Department | Lawrence |
| St. Jacob Police Department | Madison |
| Stanford Police Department | Mclean |
| Staunton Police Department | Macoupin |
| Steger Police Department | Cook |
| Sterling Police Department | Whiteside |
| Stickney Police Department | Cook |
| Stockton Police Department | Jo Daviess |
| Stone Park Police Department | Cook |
| Stonington Police Department | Christian |
| Streamwood Police Department | Cook |
| Streator Police Department | La Salle |
| Stronghurst Police Department | Henderson |
| Sugar Grove Police Department | Kane |
| Sullivan Police Department | Moultrie |
| Summerfield Police Department | St Clair |
| Summit Police Department | Cook |
| Sumner Police Department | Lawrence |
| Swansea Police Department | St Clair |
| Sycamore Police Department | Dekalb |
| Tampico Police Department | Whiteside |
| Taylorville Police Department | Christian |
| Teutopolis Police Department | Effingham |
| Thayer Police Department | Sangamon |
| Thomson Police Department | Carroll |
| Thornton Police Department | Cook |
| Tilton Police Department | Vermilion |
| Tinley Park Police Department | Cook |
| Tolono Police Department | Champaign |
| Tonica Police Department | La Salle |
| Toulon Police Department | Stark |
| Tower Lakes Police Department | Lake |
| Tremont Police Department | Tazewell |
| Trenton Police Department | Clinton |
| Troy Police Department | Madison |
| Tuscola Police Department | Douglas |
| Ullin Police Department | Pulaski |
| Union Police Department | Mchenry |
| University Park Police Department | Cook |
| Urbana Police Department | Champaign |
| Valmeyer Police Department | Monroe |
| Vandalia Police Department | Fayette |
| Venice Police Department | Madison |
| Vernon Hills Police Department | Lake |
| Vienna Police Department | Johnson |
| Villa Grove Police Department | Douglas |
| Villa Park Police Department | Dupage |
| Viola Police Department | Mercer |
| Virden Police Department | Macoupin |
| Virginia Police Department | Cass |
| Walnut Police Department | Bureau |
| Wamac Police Department | Clinton |
| Warren Police Department | Jo Daviess |
| Warrensburg Police Department | Macon |
| Warrenville Police Department | Dupage |
| Washburn Police Department | Marshall |
| Washington Park Police Department | St Clair |
| Washington Police Department | Tazewell |
| Waterloo Police Department | Monroe |
| Waterman Police Department | Dekalb |
| Watseka Police Department | Iroquois |
| Wauconda Police Department | Lake |
| Waukegan Police Department | Lake |
| Waverly Police Department | Morgan |
| Wayne City Police Department | Wayne |
| Wayne Police Department | Dupage |
| West Chicago Police Department | Dupage |
| West City Police Department | Franklin |
| West Dundee Police Department | Kane |
| West Frankfort Police Department | Franklin |
| West Salem Police Department | Edwards |
| Westchester Police Department | Cook |
| Western Springs Police Department | Cook |
| Westmont Police Department | Dupage |
| Westville Police Department | Vermilion |
| Wheaton Police Department | Dupage |
| Wheeling Police Department | Cook |
| White Hall Police Department | Greene |
| Williamsfield Police Department | Knox |
| Williamsville Police Department | Sangamon |
| Willisville Police Department | Perry |
| Willow Springs Police Department | Cook |
| Willowbrook Police Department | Dupage |
| Wilmette Police Department | Cook |
| Wilmington Police Department | Will |
| Winchester Police Department | Scott |
| Winfield Police Department | Dupage |
| Winnebago Police Department | Winnebago |
| Winnetka Police Department | Cook |
| Winthrop Harbor Police Department | Lake |
| Witt Police Department | Montgomery |
| Wonder Lake Police Department | Mchenry |
| Wood Dale Police Department | Dupage |
| Wood River Police Department | Madison |
| Woodhull Police Department | Henry |
| Woodridge Police Department | Dupage |
| Woodstock Police Department | Mchenry |
| Worden Police Department | Madison |
| Worth Police Department | Cook |
| Wyoming Police Department | Stark |
| Yates City Police Department | Knox |
| Yorkville Police Department | Kendall |
| Zeigler Police Department | Franklin |
| Zion Police Department | Lake |
Alphabetical.
Source: Federal Bureau of Investigation, Crime Data Explorer — law-enforcement agencies by state (API). Data captured September 30, 2026.