Illinois
2,821 jurisdictions across counties, municipalities, and townships.
Counties 102
Municipalities 1,294
- City of North Chicago pop. 30,029
- City of Northlake pop. 12,664
- City of O Fallon pop. 32,292
- City of Oak Forest pop. 26,793
- City of Oakbrook Terrace pop. 2,725
- City of Oakland pop. 732
- City of Oglesby pop. 3,660
- City of Olney pop. 8,692
- City of Oneida pop. 684
- City of Oregon pop. 3,592
- City of Orient pop. 323
- City of Ottawa pop. 18,749
- City of Palos Heights pop. 11,819
- City of Palos Hills pop. 18,117
- City of Pana pop. 5,262
- City of Paris pop. 8,140
- City of Park City pop. 7,867
- City of Park Ridge pop. 38,810
- City of Paxton pop. 4,459
- City of Pekin pop. 31,448
- City of Peoria pop. 111,666
- City of Peru pop. 9,842
- City of Petersburg pop. 2,231
- City of Pinckneyville pop. 5,198
- City of Pittsfield pop. 4,193
- City of Plano pop. 12,191
- City of Polo pop. 2,262
- City of Pontiac pop. 11,359
- City of Princeton pop. 7,716
- City of Prophetstown pop. 1,929
- City of Prospect Heights pop. 15,691
- City of Quincy pop. 39,131
- City of Red Bud pop. 3,684
- City of Robinson pop. 7,187
- City of Rochelle pop. 9,367
- City of Rock Falls pop. 8,724
- City of Rock Island pop. 36,636
- City of Rockford pop. 147,711
- City of Rolling Meadows pop. 23,781
- City of Roodhouse pop. 1,545
- City of Rosiclare pop. 966
- City of Rushville pop. 3,026
- City of Salem pop. 7,187
- City of Sandwich pop. 7,178
- City of Savanna pop. 2,909
- City of Sesser pop. 1,865
- City of Shawneetown pop. 1,054
- City of Shelbyville pop. 4,609
- City of Silvis pop. 7,952
- City of South Beloit pop. 7,932
Townships 1,425
- Township of Harrison pop. 603
- Township of Harristown pop. 1,718
- Township of Harter pop. 6,077
- Township of Hartland pop. 1,878
- Township of Harvel pop. 190
- Township of Harwood pop. 628
- Township of Havana pop. 4,320
- Township of Haw Creek pop. 351
- Township of Hawthorne pop. 258
- Township of Hebron pop. 2,342
- Township of Helvetia pop. 8,323
- Township of Henderson pop. 1,126
- Township of Hennepin pop. 1,221
- Township of Henry pop. 2,553
- Township of Hensley pop. 1,019
- Township of Heralds Prairie pop. 627
- Township of Herrick pop. 537
- Township of Hickory pop. 104
- Township of Hickory Hill pop. 376
- Township of Hickory Point pop. 18,052
- Township of Highland pop. 262
- Township of Hillsboro pop. 6,540
- Township of Hillyard pop. 579
- Township of Hire pop. 198
- Township of Hittle pop. 555
- Township of Holland pop. 387
- Township of Hollis pop. 1,798
- Township of Homer pop. 40,737
- Township of Honey Creek pop. 713
- Township of Honey Creek pop. 1,455
- Township of Honey Point pop. 168
- Township of Hoosier pop. 314
- Township of Hope pop. 577
- Township of Hopedale pop. 1,821
- Township of Hopewell pop. 495
- Township of Hopkins pop. 1,998
- Township of Houston pop. 210
- Township of Hoyleton pop. 1,035
- Township of Hudson pop. 2,469
- Township of Humboldt pop. 1,203
- Township of Hume pop. 359
- Township of Hunt City pop. 258
- Township of Hunter pop. 247
- Township of Huntsville pop. 137
- Township of Hurlbut pop. 308
- Township of Hurricane pop. 226
- Township of Hutsonville pop. 1,001
- Township of Hutton pop. 772
- Township of Illini pop. 1,310
- Township of Illiopolis pop. 1,200