City | 2026 Pop.↓ |
|---|---|
| Aurora | 181,666 |
| Arlington Heights | 75,772 |
| Addison | 35,742 |
| Algonquin | 31,039 |
| Alton | 24,865 |
| Alsip | 18,357 |
| Antioch | 15,105 |
| Auburn | 4,416 |
| Anna | 4,062 |
| Aledo | 3,483 |
| Arcola | 2,924 |
| Abingdon | 2,807 |
| Aviston | 2,473 |
| Arthur | 2,272 |
| Amboy | 2,192 |
| Altamont | 2,179 |
| Athens | 1,865 |
| Albion | 1,825 |
| Arbury Hills | 1,733 |
| Atlanta | 1,619 |
| Andalusia | 1,171 |
| Ashland | 1,150 |
| Albers | 1,111 |
| Assumption | 1,104 |
| Atwood | 1,096 |
| Ashton | 922 |
| Atkinson | 917 |
| Astoria | 873 |
| Argenta | 863 |
| Annawan | 852 |
| Apple Canyon Lake | 850 |
| Albany | 834 |
| Alexis | 748 |
| Ashkum | 712 |
| Argyle | 690 |
| Avon | 665 |
| Alpha | 648 |
| Aroma Park | 644 |
| Ashmore | 624 |
| Alhambra | 610 |
| Ava | 540 |
| Andover | 532 |
| Augusta | 526 |
| Ashley | 446 |
| Altona | 445 |
| Allendale | 433 |
| Arenzville | 352 |
| Apple River | 331 |
| Alexander | 318 |
| Armington | 301 |
| Alma | 299 |
| Alto Pass | 297 |
| Arrowsmith | 267 |
| Addieville | 255 |
| Allerton | 237 |
| Alvan (Alvin) | 212 |
| Alsey | 183 |
| Arlington | 162 |
| Anchor | 154 |
| Adams | 149 |
| Adair | 134 |
| Allenville | 128 |
| Adeline | 71 |
| Annapolis | 63 |
| Andres | 52 |
| Alden | 44 |
City | 2026 Pop.↓ |
|---|---|
| Decatur | 67,179 |
| Des Plaines | 58,378 |
| Downers Grove | 50,404 |
| DeKalb | 40,424 |
| Danville | 27,902 |
| Darien | 22,011 |
| Dolton | 20,517 |
| Deerfield | 19,625 |
| Dixon | 14,365 |
| Du Quoin | 5,525 |
| Dwight | 4,001 |
| Dupo | 3,721 |
| Deer Park | 3,639 |
| Dixmoor | 2,936 |
| Diamond | 2,729 |
| Davis Junction | 2,571 |
| Dunlap | 1,582 |
| De Pue | 1,558 |
| Delavan | 1,541 |
| De Soto | 1,385 |
| Durand | 1,378 |
| Downs | 1,168 |
| Divernon | 1,100 |
| Danvers | 1,057 |
| Dieterich | 878 |
| Dallas City | 758 |
| Deer Creek | 645 |
| Dalzell | 633 |
| Dongola | 633 |
| Davis | 566 |
| Danforth | 564 |
| Damiansville | 559 |
| Dawson | 504 |
| Dahlgren | 493 |
| Dakota | 475 |
| Dix | 453 |
| De Land | 444 |
| Dalton City | 427 |
| Dowell | 363 |
| Dundas | 325 |
| Dayton | 323 |
| Dunfermline | 249 |
| Donovan | 236 |
| Du Bois | 179 |
| Dana | 161 |
| De Witt | 160 |
| Donnellson | 151 |
| Dover | 134 |
| Dorchester | 124 |
| Dewey | 87 |
| Detroit | 74 |
| Deer Grove | 39 |
City | 2026 Pop.↓ |
|---|---|
| Elgin | 115,569 |
| Evanston | 76,028 |
| Elmhurst | 46,141 |
| Elk Grove Village | 31,659 |
| Edwardsville | 26,384 |
| Elmwood Park | 23,500 |
| East Peoria | 21,989 |
| East Moline | 20,229 |
| Evergreen Park | 19,147 |
| East St. Louis | 17,559 |
| Effingham | 12,427 |
| Elburn | 7,246 |
| East Alton | 5,589 |
| Eureka | 5,111 |
| Eldorado | 3,542 |
| East Dundee | 3,119 |
| El Paso | 2,717 |
| Elwood | 2,242 |
| Elmwood | 2,019 |
| Earlville | 1,585 |
| Erie | 1,475 |
| East Dubuque | 1,449 |
| East Hazel Crest | 1,240 |
| Edinburg | 1,048 |
| Energy | 956 |
| Essex | 851 |
| Elkville | 828 |
| Enfield | 768 |
| East Galesburg | 728 |
| Elizabeth | 691 |
| Edgington | 558 |
| Elsah | 537 |
| Evansville | 531 |
| Equality | 492 |
| East Lynn | 485 |
| Emden | 449 |
| Elkhart | 434 |
| Edgewood | 388 |
| East Carondelet | 366 |
| Ellis Grove | 324 |
| Easton | 294 |
| Ewing | 293 |
| Elliott | 271 |
| East Gillespie | 248 |
| East Cape Girardeau | 243 |
| Elizabethtown | 223 |
| Eagle Lake | 202 |
| Ellsworth | 178 |
| Eldred | 139 |
| Elvaston | 139 |
| Eagarville | 112 |
| Eddyville | 96 |
| Emington | 96 |
| Ellisville | 84 |
| Exeter | 82 |
| East Brooklyn | 75 |
| El Dara | 60 |
| Elwin | 41 |
City | 2026 Pop.↓ |
|---|---|
| Freeport | 23,040 |
| Frankfort | 21,576 |
| Franklin Park | 17,981 |
| Fairview Heights | 16,038 |
| Forest Park | 13,720 |
| Fox Lake | 10,828 |
| Frankfort Square | 9,893 |
| Flossmoor | 9,290 |
| Fox River Grove | 4,893 |
| Fairfield | 4,769 |
| Flora | 4,597 |
| Freeburg | 4,487 |
| Forsyth | 3,587 |
| Fairbury | 3,580 |
| Fulton | 3,519 |
| Fairmont | 2,397 |
| Farmington | 2,275 |
| Fox Lake Hills | 2,238 |
| Fairmont City | 2,132 |
| Fisher | 2,087 |
| Forest Lake | 1,829 |
| Farmer City | 1,792 |
| Ford Heights | 1,738 |
| Forreston | 1,394 |
| Flanagan | 1,017 |
| Forrest | 1,009 |
| Franklin Grove | 862 |
| Forest View | 757 |
| Farmersville | 664 |
| Findlay | 653 |
| Fairmount | 586 |
| Franklin | 582 |
| Farina | 521 |
| Fithian | 469 |
| Fairview | 406 |
| Flat Rock | 321 |
| Fillmore | 293 |
| Fayetteville | 283 |
| Freeman Spur | 270 |
| Forest City | 209 |
| Fieldon | 157 |
| Ferris | 122 |
| Fowler | 118 |
| Fidelity | 95 |
| Foosland | 72 |
| Fults | 26 |
| Florence | 16 |
City | 2026 Pop.↓ |
|---|---|
| Glenview | 47,484 |
| Glendale Heights | 32,558 |
| Gurnee | 30,395 |
| Glen Ellyn | 28,701 |
| Galesburg | 28,267 |
| Granite City | 26,659 |
| Grayslake | 21,126 |
| Geneva | 21,114 |
| Godfrey | 17,577 |
| Glen Carbon | 13,907 |
| Gages Lake | 10,823 |
| Gilberts | 9,261 |
| Glencoe | 8,698 |
| Glenwood | 8,354 |
| Greenville | 7,442 |
| Geneseo | 6,495 |
| Genoa | 5,591 |
| Grandwood Park | 5,336 |
| Green Oaks | 4,075 |
| Germantown Hills | 3,440 |
| Gibson City | 3,355 |
| Galena | 3,187 |
| Gillespie | 3,066 |
| Georgetown | 2,975 |
| Galva | 2,366 |
| Girard | 1,758 |
| Gilman | 1,666 |
| Grayville | 1,473 |
| Gridley | 1,423 |
| Germantown | 1,391 |
| Grandview | 1,382 |
| Gardner | 1,367 |
| Greenup | 1,324 |
| Granville | 1,318 |
| Grant Park | 1,269 |
| Goreville | 1,053 |
| Griggsville | 1,037 |
| Greenfield | 985 |
| Goodfield | 964 |
| Gifford | 880 |
| Glasford | 837 |
| Grafton | 804 |
| Galatia | 777 |
| Greenview | 711 |
| Garden Prairie | 689 |
| Godley | 651 |
| Golden | 623 |
| Golconda | 615 |
| Green Valley | 600 |
| Golf | 508 |
| Grand Ridge | 505 |
| Grand Tower | 473 |
| German Valley | 413 |
| Good Hope | 347 |
| Grantfork | 329 |
| Greenwood | 313 |
| Grand Detour | 248 |
| Gladstone | 215 |
| Gays | 209 |
| Galt | 201 |
| Gorham | 167 |
| Gilson | 140 |
| Garrett | 126 |
| Glasgow | 107 |
| Goofy Ridge | 101 |
| Golden Gate | 60 |
| Gulfport | 38 |
City | 2026 Pop.↓ |
|---|---|
| Hoffman Estates | 50,497 |
| Hanover Park | 36,390 |
| Highland Park | 30,889 |
| Huntley | 29,310 |
| Homer Glen | 24,960 |
| Harvey | 19,736 |
| Homewood | 18,632 |
| Hinsdale | 17,612 |
| Hickory Hills | 14,016 |
| Hazel Crest | 12,928 |
| Herrin | 12,246 |
| Highland | 10,034 |
| Hawthorn Woods | 9,789 |
| Hampshire | 9,578 |
| Harvard | 9,492 |
| Harwood Heights | 8,696 |
| Hillside | 8,080 |
| Harrisburg | 7,844 |
| Hillsboro | 6,199 |
| Highwood | 5,386 |
| Hoopeston | 4,625 |
| Hometown | 4,158 |
| Hainesville | 3,493 |
| Holiday Shores | 3,227 |
| Heyworth | 2,888 |
| Havana | 2,765 |
| Hamilton | 2,599 |
| Henry | 2,270 |
| Hinckley | 1,989 |
| Heritage Lake | 1,751 |
| Hudson | 1,749 |
| Hampton | 1,743 |
| Herscher | 1,479 |
| Hodgkins | 1,475 |
| Hebron | 1,395 |
| Harristown | 1,234 |
| Hanna City | 1,232 |
| Hillcrest | 1,205 |
| Hartford | 1,146 |
| Homer | 1,044 |
| Harrison | 943 |
| Hamel | 936 |
| Hanover | 816 |
| Hopedale | 802 |
| Hardin | 775 |
| Hurst | 749 |
| Hennepin | 743 |
| Hopkins Park | 649 |
| Holiday Hills | 604 |
| Hoyleton | 498 |
| Hammond | 497 |
| Hutsonville | 468 |
| Hoffman | 429 |
| Hecker | 416 |
| Hillsdale | 411 |
| Hopewell | 410 |
| Hull | 372 |
| Herrick | 353 |
| Humboldt | 352 |
| Hanaford | 313 |
| Hume | 311 |
| Hindsboro | 272 |
| Hartsburg | 253 |
| Henderson | 252 |
| Holcomb | 215 |
| Henning | 200 |
| Hooppole | 171 |
| Harvel | 170 |
| Huey | 159 |
| Hettick | 145 |
| Hartland | 140 |
| Harmon | 115 |
| Hidalgo | 106 |
| Hamburg | 94 |
| Hillview | 90 |
| Hollowayville | 44 |
| Harding | 20 |
City | 2026 Pop.↓ |
|---|---|
| Itasca | 9,471 |
| Island Lake | 8,048 |
| Inverness | 7,375 |
| Indian Head Park | 3,936 |
| Ingalls Park | 2,891 |
| Ina | 1,602 |
| Illiopolis | 829 |
| Irvington | 562 |
| Indian Creek | 530 |
| Iuka | 487 |
| Ipava | 413 |
| Industry | 380 |
| Irving | 362 |
| Ivesdale | 253 |
| Indianola | 217 |
| Iroquois | 130 |
| Iola | 95 |
| Irwin | 62 |
| Illinois City | 22 |
City | 2026 Pop.↓ |
|---|---|
| Joliet | 152,625 |
| Jacksonville | 17,644 |
| Justice | 12,212 |
| Jerseyville | 8,414 |
| Johnsburg | 6,458 |
| Johnston City | 3,295 |
| Jonesboro | 1,621 |
| Jerome | 1,616 |
| Junction City | 514 |
| Joy | 354 |
| Jeffersonville | 347 |
| Joppa | 326 |
| Jewett | 185 |
| Jeisyville | 98 |
| Johnsonville | 79 |
| Joslin | 54 |
| Junction | 51 |
| Janesville | 17 |
City | 2026 Pop.↓ |
|---|---|
| Kankakee | 23,267 |
| Kewanee | 12,036 |
| Kildeer | 4,796 |
| Knoxville | 2,790 |
| Kenilworth | 2,420 |
| Knollwood | 1,944 |
| Kirkland | 1,624 |
| Kincaid | 1,301 |
| Kingston | 1,099 |
| Kinmundy | 696 |
| Kansas | 642 |
| Kirkwood | 642 |
| Keithsburg | 545 |
| Kaneville | 445 |
| Keyesport | 403 |
| Kings | 396 |
| Karnak | 388 |
| Kenney | 296 |
| Kampsville | 292 |
| Kane | 270 |
| Kingston Mines | 257 |
| Kilbourne | 253 |
| Kingston | 242 |
| Kappa | 230 |
| Kangley | 223 |
| Kinderhook | 187 |
| Kempton | 175 |
| Keensburg | 169 |
| Kell | 167 |
| Kinsman | 91 |
| Keenes | 47 |
| Kaskaskia | 22 |
City | 2026 Pop.↓ |
|---|---|
| Naperville | 153,905 |
| Normal | 53,329 |
| North Chicago | 34,886 |
| Northbrook | 34,597 |
| Niles | 30,232 |
| New Lenox | 29,202 |
| North Aurora | 19,679 |
| Norridge | 14,716 |
| Northlake | 12,376 |
| North Riverside | 7,105 |
| Northfield | 5,604 |
| New Baden | 3,368 |
| North Barrington | 3,122 |
| Nashville | 2,992 |
| Newton | 2,701 |
| Nokomis | 2,121 |
| New Athens | 1,834 |
| North Pekin | 1,439 |
| Neoga | 1,363 |
| New Berlin | 1,355 |
| North Utica | 1,337 |
| Norris City | 1,075 |
| Newark | 985 |
| Nauvoo | 886 |
| New Milford | 809 |
| Newman | 768 |
| Noble | 605 |
| New Boston | 597 |
| Niantic | 571 |
| North City | 500 |
| Norwood | 429 |
| Naplate | 413 |
| Neponset | 400 |
| New Haven | 372 |
| New Douglas | 337 |
| New Canton | 322 |
| Nebo | 268 |
| New Holland | 260 |
| Nilwood | 197 |
| Nason | 196 |
| Norris | 167 |
| New Minden | 165 |
| North Henderson | 157 |
| New Burnside | 153 |
| Nachusa | 151 |
| New Grand Chain | 140 |
| Nelson | 126 |
| New Salem | 115 |
| Nora | 108 |
| Naples | 93 |
| New Bedford | 74 |
| Nekoma | 66 |
| Niota | 5 |
City | 2026 Pop.↓ |
|---|---|
| Orland Park | 57,819 |
| Oak Lawn | 56,057 |
| Oak Park | 52,421 |
| Oswego | 40,948 |
| O'Fallon | 32,600 |
| Oak Forest | 26,656 |
| Ottawa | 18,663 |
| Olney | 8,281 |
| Oak Brook | 8,109 |
| Orland Hills | 6,614 |
| Olympia Fields | 4,564 |
| Oglesby | 3,600 |
| Oregon | 3,557 |
| Oakbrook Terrace | 2,785 |
| Oakwood Hills | 2,043 |
| Orion | 1,698 |
| Oblong | 1,348 |
| Okawville | 1,338 |
| Onarga | 1,295 |
| Oakwood | 1,263 |
| Oquawka | 1,051 |
| Odell | 968 |
| Odin | 896 |
| Oreana | 836 |
| Oak Run | 762 |
| Orangeville | 736 |
| Oakland | 718 |
| Ogden | 710 |
| Oneida | 671 |
| Oak Grove | 474 |
| Ohio | 454 |
| Olive Branch | 343 |
| Orient | 319 |
| Opdyke | 265 |
| Olmsted | 261 |
| Oakford | 222 |
| Owaneco | 204 |
| Omaha | 200 |
| Oakdale | 197 |
| Ophiem | 183 |
| Old Mill Creek | 161 |
| Oconee | 132 |
| Ohlman | 106 |
| Old Shawneetown | 100 |
| Olivet | 93 |
| Old Ripley | 84 |
| Otterville | 81 |
| Osco | 78 |
| Oxville | 33 |
City | 2026 Pop.↓ |
|---|---|
| Quincy | 38,740 |
City | 2026 Pop.↓ |
|---|---|
| Rockford | 146,961 |
| Romeoville | 41,441 |
| Rock Island | 36,034 |
| Round Lake Beach | 26,839 |
| Rolling Meadows | 23,581 |
| Roselle | 22,722 |
| Round Lake | 18,491 |
| Richton Park | 12,424 |
| Rantoul | 11,913 |
| River Forest | 11,193 |
| Roscoe | 11,031 |
| River Grove | 10,374 |
| Riverdale | 10,200 |
| Rochelle | 9,504 |
| Riverside | 8,863 |
| Rock Falls | 8,472 |
| Round Lake Park | 7,881 |
| Rockton | 7,864 |
| Robinson | 7,305 |
| Robbins | 4,576 |
| Rochester | 4,134 |
| Rosewood Heights | 4,049 |
| Rosemont | 3,785 |
| Riverwoods | 3,762 |
| Red Bud | 3,754 |
| Ridgewood | 3,689 |
| Riverton | 3,452 |
| Rushville | 2,838 |
| Round Lake Heights | 2,573 |
| Richmond | 2,123 |
| Rockdale | 1,963 |
| Roanoke | 1,911 |
| Rome | 1,603 |
| Roodhouse | 1,467 |
| Roxana | 1,386 |
| Rossville | 1,157 |
| Royalton | 1,025 |
| Rosiclare | 973 |
| Rapids City | 936 |
| Raymond | 914 |
| Ramsey | 879 |
| Roseville | 833 |
| Ringwood | 829 |
| Ridgway | 784 |
| Ridge Farm | 744 |
| Rest Haven | 661 |
| Reynolds | 491 |
| Rankin | 467 |
| Rock Island Arsenal | 423 |
| Roberts | 339 |
| Ruma | 312 |
| Ransom | 309 |
| Rock City | 282 |
| Royal | 277 |
| Raleigh | 273 |
| Ridgefield | 268 |
| Rutland | 253 |
| Richview | 231 |
| Rio | 201 |
| Reddick | 187 |
| Radom | 183 |
| Royal Lakes | 172 |
| Rockbridge | 168 |
| Ritchie | 154 |
| Redmon | 131 |
| Ridott | 122 |
| Raritan | 96 |
| Russellville | 89 |
| Rose Hill | 83 |
| Rockport | 59 |
| Ripley | 51 |
| Riggston | 33 |
| Rockwood | 31 |
City | 2026 Pop.↓ |
|---|---|
| Tinley Park | 54,896 |
| Troy | 11,986 |
| Taylorville | 10,513 |
| Tuscola | 4,671 |
| Tolono | 3,479 |
| Trenton | 2,635 |
| Tilton | 2,513 |
| Thornton | 2,280 |
| Tremont | 2,236 |
| The Galena Territory | 1,779 |
| Teutopolis | 1,737 |
| Thomson | 1,604 |
| Twin Grove | 1,552 |
| Toluca | 1,305 |
| Tower Lakes | 1,196 |
| Toulon | 1,166 |
| Toledo | 1,136 |
| Third Lake | 1,100 |
| Thomasboro | 996 |
| Timberlane | 908 |
| Tilden | 745 |
| Tonica | 733 |
| Taylor Springs | 724 |
| Tiskilwa | 712 |
| Tampico | 663 |
| Thayer | 610 |
| Tamaroa | 520 |
| Trout Valley | 509 |
| Thompsonville | 475 |
| Tower Hill | 470 |
| Trivoli | 448 |
| Tovey | 441 |
| Towanda | 421 |
| Tallula | 417 |
| Tamms | 362 |
| Table Grove | 325 |
| Taylor Ridge | 292 |
| Troy Grove | 225 |
| Thawville | 205 |
| Thebes | 175 |
| Trilla | 145 |
| Tennessee | 97 |
| Triumph | 92 |
| Topeka | 49 |
City | 2026 Pop.↓ |
|---|---|
| Urbana | 39,924 |
| University Park | 6,998 |
| Union | 719 |
| Ursa | 598 |
| Ullin | 452 |
| Unity | 188 |
| Union Hill | 48 |
City | 2026 Pop.↓ |
|---|---|
| Vernon Hills | 26,838 |
| Villa Park | 21,819 |
| Vandalia | 7,041 |
| Volo | 6,981 |
| Virden | 3,132 |
| Venetian Village | 2,676 |
| Villa Grove | 2,440 |
| Venice | 1,441 |
| Virginia | 1,428 |
| Vienna | 1,351 |
| Valmeyer | 1,201 |
| Viola | 830 |
| Vermont | 553 |
| Valier | 535 |
| Versailles | 447 |
| Varna | 364 |
| Virgil | 283 |
| Victoria | 249 |
| Vergennes | 233 |
| Verona | 206 |
| Vermilion | 195 |
| Venedy | 124 |
| Vernon | 96 |
| Valley City | 13 |
City | 2026 Pop.↓ |
|---|---|
| Xenia | 356 |
City | 2026 Pop.↓ |
|---|---|
| Yorkville | 27,780 |
| Yates City | 624 |
| Yale | 64 |