Illinois
2,821 jurisdictions across counties, municipalities, and townships.
Counties 102
- Adams County pop. 64,954
- Alexander County pop. 5,030
- Bond County pop. 16,596
- Boone County pop. 53,159
- Brown County pop. 6,421
- Bureau County pop. 32,883
- Calhoun County pop. 4,369
- Carroll County pop. 15,698
- Cass County pop. 12,773
- Champaign County pop. 205,943
- Christian County pop. 33,662
- Clark County pop. 15,300
- Clay County pop. 13,143
- Clinton County pop. 36,793
- Coles County pop. 46,765
- Cook County pop. 5,173,146
- Crawford County pop. 18,659
- Cumberland County pop. 10,345
- De Witt County pop. 15,341
- Dekalb County pop. 100,414
- Douglas County pop. 19,722
- Dupage County pop. 924,885
- Edgar County pop. 16,520
- Edwards County pop. 6,075
- Effingham County pop. 34,430
- Fayette County pop. 21,384
- Ford County pop. 13,511
- Franklin County pop. 37,442
- Fulton County pop. 33,197
- Gallatin County pop. 4,903
- Greene County pop. 11,843
- Grundy County pop. 52,989
- Hamilton County pop. 7,911
- Hancock County pop. 17,400
- Hardin County pop. 3,650
- Henderson County pop. 6,312
- Henry County pop. 48,907
- Iroquois County pop. 26,827
- Jackson County pop. 52,565
- Jasper County pop. 9,193
- Jefferson County pop. 36,877
- Jersey County pop. 21,333
- Jo Daviess County pop. 21,939
- Johnson County pop. 13,463
- Kane County pop. 515,588
- Kankakee County pop. 106,601
- Kendall County pop. 134,867
- Knox County pop. 49,268
- Lake County pop. 711,239
- Lasalle County pop. 108,965
Municipalities 1,294
- Village of Rio pop. 206
- Village of Ripley pop. 51
- Village of River Forest pop. 11,597
- Village of River Grove pop. 10,531
- Village of Riverdale pop. 10,397
- Village of Riverside pop. 9,061
- Village of Riverton pop. 3,497
- Village of Riverwoods pop. 3,765
- Village of Roanoke pop. 1,937
- Village of Robbins pop. 4,627
- Village of Roberts pop. 343
- Village of Rochester pop. 3,840
- Village of Rock City pop. 289
- Village of Rockbridge pop. 174
- Village of Rockdale pop. 1,990
- Village of Rockton pop. 7,781
- Village of Rockwood pop. 32
- Village of Romeoville pop. 40,469
- Village of Roscoe pop. 10,871
- Village of Rose Hill pop. 84
- Village of Roselle pop. 22,660
- Village of Rosemont pop. 3,855
- Village of Roseville pop. 873
- Village of Rossville pop. 1,203
- Village of Round Lake pop. 18,625
- Village of Round Lake Beach pop. 27,081
- Village of Round Lake Heights pop. 2,604
- Village of Round Lake Park pop. 7,688
- Village of Roxana pop. 1,452
- Village of Royal pop. 286
- Village of Royal Lakes pop. 167
- Village of Royalton pop. 1,049
- Village of Ruma pop. 307
- Village of Russellville pop. 93
- Village of Rutland pop. 255
- Village of Sadorus pop. 392
- Village of Sailor Springs pop. 90
- Village of Sammons Point pop. 207
- Village of San Jose pop. 467
- Village of Sandoval pop. 1,152
- Village of Sauget pop. 136
- Village of Sauk Village pop. 9,698
- Village of Saunemin pop. 398
- Village of Savoy pop. 8,823
- Village of Sawyerville pop. 265
- Village of Saybrook pop. 645
- Village of Scales Mound pop. 435
- Village of Schaumburg pop. 77,082
- Village of Schiller Park pop. 11,424
- Village of Schram City pop. 559
Townships 1,425
- Township of North Muddy pop. 772
- Township of North Okaw pop. 992
- Township of North Otter pop. 764
- Township of North Palmyra pop. 809
- Township of Northeast pop. 833
- Township of Northern pop. 445
- Township of Northfield pop. 89,863
- Township of Northville pop. 7,297
- Township of Norton pop. 914
- Township of Norwood Park pop. 26,878
- Township of Nunda pop. 38,401
- Township of O Fallon pop. 26,336
- Township of Oak Park pop. 53,224
- Township of Oakdale pop. 546
- Township of Oakland pop. 133
- Township of Oakley pop. 952
- Township of Oakwood pop. 3,125
- Township of Oblong pop. 2,757
- Township of Oconee pop. 781
- Township of Odell pop. 1,183
- Township of Odin pop. 1,564
- Township of Ogden pop. 1,516
- Township of Ohio pop. 816
- Township of Ohio Grove pop. 271
- Township of Okaw pop. 886
- Township of Okawville pop. 1,945
- Township of Old Ripley pop. 859
- Township of Old Town pop. 3,387
- Township of Olio pop. 4,683
- Township of Olive pop. 1,705
- Township of Olney pop. 9,972
- Township of Omaha pop. 423
- Township of Omega pop. 445
- Township of Omphghent pop. 2,448
- Township of Onarga pop. 1,599
- Township of Oneco pop. 1,268
- Township of Ontario pop. 901
- Township of Ophir pop. 437
- Township of Oquawka pop. 1,650
- Township of Ora pop. 506
- Township of Oran pop. 305
- Township of Orange pop. 255
- Township of Orange pop. 521
- Township of Orchard pop. 627
- Township of Oregon-Nashua pop. 4,776
- Township of Orel pop. 1,342
- Township of Orion pop. 1,114
- Township of Orland pop. 96,470
- Township of Orvil pop. 959
- Township of Osage pop. 242