Illinois
IL flag

Illinois

State

Territory

  • officials recorded 11
  • partly recorded 2
  • nothing recorded 89
GEOID
17
OCD-ID
ocd-division/country:us/state:il
POP
12,719,141 (2025)
CENTER
40.1242, -89.1486
SOURCE
census tiger

Government of Illinois

Bodies, seats, agencies and services that belong to Illinois itself. Jurisdictions inside it are listed separately below.

Within Illinois

Each of these governs itself. Counts are that jurisdiction's own records.

jurisdictions
102
agencies
298
bodies
21
officials
229
Name Agencies Bodies Officials
Cook 22 1 0
DuPage 20 1 1
Lake 20 1 1
Will 8 1 1
Kane 3 1 0
McHenry 31 1 19
Winnebago 24 1 21
Madison 34 2 34
St. Clair 31 1 29
Champaign 24 1 21
Sangamon 25 2 37
Peoria 34 7 45
McLean 22 1 20
Kendall 0 0 0
Rock Island 0 0 0
Tazewell 0 0 0
LaSalle 0 0 0
Kankakee 0 0 0
DeKalb 0 0 0
Macon 0 0 0
Vermilion 0 0 0
Williamson 0 0 0
Adams 0 0 0
Whiteside 0 0 0
Grundy 0 0 0
Boone 0 0 0
Jackson 0 0 0
Ogle 0 0 0
Henry 0 0 0
Knox 0 0 0
Coles 0 0 0
Macoupin 0 0 0
Stephenson 0 0 0
Woodford 0 0 0
Clinton 0 0 0
Franklin 0 0 0
Marion 0 0 0
Jefferson 0 0 0
Livingston 0 0 0
Monroe 0 0 0
Effingham 0 0 0
Christian 0 0 0
Lee 0 0 0
Fulton 0 0 0
Morgan 0 0 0
Bureau 0 0 0
Randolph 0 0 0
Montgomery 0 0 0
Logan 0 0 0
Iroquois 0 0 0

Showing the 50 largest of 102. Totals include all of them.