Forestry Report
List of law enforcement agencies in Illinois
2026-11-15 05:59:31 · Cedar Herald Index
This is a list of law enforcement agencies in the state of Illinois.
According to the US Bureau of Justice Statistics' 2008 Census of State and Local Law Enforcement Agencies, the state had 877 law enforcement agencies employing 41,277 sworn police officers, about 321 for each 100,000 residents.
State agencies
Illinois Attorney General's Office
Department of Investigations
Illinois Attorney General Police
Illinois Commerce Commission Police
Illinois Department of Corrections
Illinois Department of Human Services Police Department
Illinois Department of Natural Resources
Illinois Conservation Police
Illinois Department of Revenue Police
Bureau of Criminal Investigations
Illinois Gaming Board
Illinois Law Enforcement Training and Standards Board
Illinois Secretary of State
Illinois Secretary of State Capitol Police
Illinois Secretary of State Police
Illinois State Fire Marshal Arson Investigation
Illinois State Police
County agencies
Sheriff's departments/offices
Adams County Sheriff's Office
Alexander County Sheriff's Office
Bond County Sheriff's Office
Boone County Sheriff's Office
Brown County Sheriff's Office
Bureau County Sheriff's Office
Calhoun County Sheriff's Office
Carroll County Sheriff's Office
Cass County Sheriff's Office
Champaign County Sheriff's Office
Christian County Sheriff's Office
Clark County Sheriff's Office
Clay County Sheriff's Office
Clinton County Sheriff's Office
Coles County Sheriff's Office
Cook County Sheriff's Office
Crawford County Sheriff's Office
Cumberland County Sheriff's Office
DeKalb County Sheriff's Office
Dewitt County Sheriff's Office
Douglas County Sheriff's Office
DuPage County Sheriff's Office
Edgar County Sheriff's Office
Edwards County Sheriff's Office
Effingham County Sheriff's Office
Fayette County Sheriff's Office
Ford County Sheriff's Office
Franklin County Sheriff's Office
Fulton County Sheriff's Office
Gallatin County Sheriff's Office
Greene County Sheriff's Office
Grundy County Sheriff's Office
Hamilton County Sheriff's Office
Hancock County Sheriff's Office
Hardin County Sheriff's Office
Henderson County Sheriff's Office
Henry County Sheriff's Office
Iroquois County Sheriff's Office
Jackson County Sheriff's Office
Jasper County Sheriff's Office
Jefferson County Sheriff's Office
Jersey County Sheriff's Office
Jo Daviess County Sheriff's Office
Johnson County Sheriff's Office
Kane County Sheriff's Office
Kankakee County Sheriff's Office
Kendall County Sheriff's Office
Knox County Sheriff's Office
LaSalle County Sheriff's Office
Lake County Sheriff's Office
Lawrence County Sheriff's Office
Lee County Sheriff's Office
Livingston County Sheriff's Office
Logan County Sheriff's Office
Macon County Sheriff's Office
Macoupin County Sheriff's Office
Madison County Sheriff's Office
Marion County Sheriff's Office
Marshall County Sheriff's Office
Mason County Sheriff's Office
Massac County Sheriff's Office
Mc Donough County Sheriff's Office
Mc Henry County Sheriff's Department
Mc Lean County Sheriff's Office
Menard County Sheriff's Office
Mercer County Sheriff's Office
Monroe County Sheriff's Office
Montgomery County Sheriff's Office
Morgan County Sheriff's Office
Moultrie County Sheriff's Office
Ogle County Sheriff's Office
Peoria County Sheriff's Office
Perry County Sheriff's Office
Piatt County Sheriff's Office
Pike County Sheriff's Office
Pope County Sheriff's Office
Pulaski County Sheriff's Office
Putnam County Sheriff's Office
Randolph County Sheriff's Office
Richland County Sheriff's Office
Rock Island County Sheriff's Office
Saint Clair County Sheriff's Office
Saline County Sheriff's Office
Sangamon County Sheriff's Office
Schuyler County Sheriff's Office
Scott County Sheriff's Office
Shelby County Sheriff's Office
Stark County Sheriff's Office
Stephenson County Sheriff's Office
Tazewell County Sheriff's Office
Union County Sheriff's Office
