All counties in the State of Illinois.
| Name | Status | Population (C 1990-04-01) | Population (C 2000-04-01) |
|---|---|---|---|
| Adams | County | 66,090 | 68,277 |
| Alexander | County | 10,626 | 9,590 |
| Bond | County | 14,991 | 17,633 |
| Boone | County | 30,806 | 41,786 |
| Brown | County | 5,836 | 6,950 |
| Bureau | County | 35,688 | 35,503 |
| Calhoun | County | 5,322 | 5,084 |
| Carroll | County | 16,805 | 16,674 |
| Cass | County | 13,437 | 13,695 |
| Champaign | County | 173,025 | 179,669 |
| Christian | County | 34,418 | 35,372 |
| Clark | County | 15,921 | 17,008 |
| Clay | County | 14,460 | 14,560 |
| Clinton | County | 33,944 | 35,535 |
| Coles | County | 51,644 | 53,196 |
| Cook | County | 5,105,044 | 5,376,741 |
| Crawford | County | 19,464 | 20,452 |
| Cumberland | County | 10,670 | 11,253 |
| De Witt | County | 16,516 | 16,798 |
| DeKalb | County | 77,932 | 88,969 |
| Douglas | County | 19,464 | 19,922 |
| DuPage | County | 781,689 | 904,161 |
| Edgar | County | 19,595 | 19,704 |
| Edwards | County | 7,440 | 6,971 |
| Effingham | County | 31,704 | 34,264 |
| Fayette | County | 20,893 | 21,802 |
| Ford | County | 14,275 | 14,241 |
| Franklin | County | 40,319 | 39,018 |
| Fulton | County | 38,080 | 38,250 |
| Gallatin | County | 6,909 | 6,445 |
| Greene | County | 15,317 | 14,761 |
| Grundy | County | 32,337 | 37,535 |
| Hamilton | County | 8,499 | 8,621 |
| Hancock | County | 21,373 | 20,121 |
| Hardin | County | 5,189 | 4,800 |
| Henderson | County | 8,096 | 8,213 |
| Henry | County | 51,159 | 51,020 |
| Iroquois | County | 30,787 | 31,334 |
| Jackson | County | 61,067 | 59,612 |
| Jasper | County | 10,609 | 10,117 |
| Jefferson | County | 37,020 | 40,045 |
| Jersey | County | 20,539 | 21,668 |
| Jo Daviess | County | 21,821 | 22,289 |
| Johnson | County | 11,347 | 12,878 |
| Kane | County | 317,471 | 404,119 |
| Kankakee | County | 96,255 | 103,833 |
| Kendall | County | 39,413 | 54,544 |
| Knox | County | 56,393 | 55,836 |
| La Salle | County | 106,913 | 111,509 |
| Lake | County | 516,418 | 644,356 |
| Lawrence | County | 15,972 | 15,452 |
| Lee | County | 34,392 | 36,062 |
| Livingston | County | 39,301 | 39,678 |
| Logan | County | 30,798 | 31,183 |
| Macon | County | 117,206 | 114,706 |
| Macoupin | County | 47,679 | 49,019 |
| Madison | County | 249,238 | 258,941 |
| Marion | County | 41,561 | 41,691 |
| Marshall | County | 12,846 | 13,180 |
| Mason | County | 16,269 | 16,038 |
| Massac | County | 14,752 | 15,161 |
| McDonough | County | 35,244 | 32,913 |
| McHenry | County | 183,241 | 260,077 |
| McLean | County | 129,180 | 150,433 |
| Menard | County | 11,164 | 12,486 |
| Mercer | County | 17,290 | 16,957 |
| Monroe | County | 22,422 | 27,619 |
| Montgomery | County | 30,728 | 30,652 |
| Morgan | County | 36,397 | 36,616 |
| Moultrie | County | 13,930 | 14,287 |
| Ogle | County | 45,957 | 51,032 |
| Peoria | County | 182,827 | 183,433 |
| Perry | County | 21,412 | 23,094 |
| Piatt | County | 15,548 | 16,365 |
| Pike | County | 17,577 | 17,384 |
| Pope | County | 4,373 | 4,413 |
| Pulaski | County | 7,523 | 7,348 |
| Putnam | County | 5,730 | 6,086 |
| Randolph | County | 34,583 | 33,893 |
| Richland | County | 16,545 | 16,149 |
| Rock Island | County | 148,723 | 149,374 |
| Saline | County | 26,551 | 26,733 |
| Sangamon | County | 178,386 | 188,951 |
| Schuyler | County | 7,498 | 7,189 |
| Scott | County | 5,644 | 5,537 |
| Shelby | County | 22,261 | 22,893 |
| St. Clair | County | 262,852 | 256,082 |
| Stark | County | 6,534 | 6,332 |
| Stephenson | County | 48,052 | 48,979 |
| Tazewell | County | 123,692 | 128,485 |
| Union | County | 17,619 | 18,293 |
| Vermilion | County | 88,257 | 83,919 |
| Wabash | County | 13,111 | 12,937 |
| Warren | County | 19,181 | 18,735 |
| Washington | County | 14,965 | 15,148 |
| Wayne | County | 17,241 | 17,151 |
| White | County | 16,522 | 15,371 |
| Whiteside | County | 60,186 | 60,653 |
| Will | County | 357,313 | 502,266 |
| Williamson | County | 57,733 | 61,296 |
| Winnebago | County | 252,913 | 278,418 |
| Woodford | County | 32,653 | 35,469 |
| Illinois | Federal State | 11,430,602 | 12,419,293 |
Contents: All places in the State of Illinois.
| Name | Status | County | Population (C 1990-04-01) | Population (C 2000-04-01) |
|---|---|---|---|---|
| Abingdon | City | Knox | 3,670 | 3,612 |
| Addieville | Village | Washington | 266 | 267 |
| Addison | Village | DuPage | 32,125 | 35,914 |
| Adeline | Village | Ogle | 145 | 139 |
| Albany | Village | Whiteside | 845 | 895 |
| Albers | Village | Clinton | 648 | 878 |
| Albion | City | Edwards | 2,173 | 1,933 |
| Aledo | City | Mercer | 3,755 | 3,613 |
| Alexis | Village | 914 | 863 | |
| Algonquin | Village | 12,423 | 23,276 | |
| Alhambra | Village | Madison | 725 | 630 |
| Allendale | Village | Wabash | 476 | 528 |
| Allenville | Village | Moultrie | 166 | 154 |
| Allerton | Village | 274 | 293 | |
| Alma | Village | Marion | 391 | 386 |
| Alorton | Village | St. Clair | 2,958 | 2,749 |
| Alpha | Village | Henry | 742 | 726 |
| Alsey | Village | Scott | 253 | 246 |
| Alsip | Village | Cook | 18,207 | 19,725 |
| Altamont | City | Effingham | 2,332 | 2,283 |
| Alto Pass | Village | Union | 426 | 388 |
| Alton | City | Madison | 33,135 | 30,496 |
| Altona | Village | Knox | 570 | 570 |
| Alvin | Village | Vermilion | 339 | 316 |
| Amboy | City | Lee | 2,382 | 2,561 |
| Anchor | Village | McLean | 178 | 175 |
| Andalusia | Village | Rock Island | 1,060 | 1,050 |
| Andover | Village | Henry | 579 | 594 |
| Anna | City | Union | 5,286 | 5,136 |
| Annawan | Town | Henry | 804 | 868 |
| Antioch | Village | Lake | 6,154 | 8,788 |
| Apple River | Village | Jo Daviess | 396 | 379 |
| Arcola | City | Douglas | 2,562 | 2,652 |
| Arenzville | Village | Cass | 390 | 419 |
| Argenta | Village | Macon | 935 | 921 |
| Arlington | Village | Bureau | 200 | 211 |
| Arlington Heights | Village | 74,739 | 76,031 | |
| Armington | Village | Tazewell | 348 | 368 |
| Aroma Park | Village | Kankakee | 692 | 821 |
| Arrowsmith | Village | McLean | 313 | 298 |
| Arthur | Village | 2,160 | 2,203 | |
| Ashkum | Village | Iroquois | 670 | 724 |
| Ashland | Village | Cass | 1,257 | 1,361 |
| Ashley | City | Washington | 587 | 613 |
| Ashmore | Village | Coles | 817 | 809 |
| Ashton | Village | Lee | 1,036 | 1,142 |
| Assumption | City | Christian | 1,272 | 1,261 |
| Astoria | Village | Fulton | 1,181 | 1,193 |
| Athens | City | Menard | 1,478 | 1,726 |
| Atkinson | Town | Henry | 958 | 1,001 |
| Atlanta | City | Logan | 1,624 | 1,649 |
| Atwood | Village | 1,257 | 1,290 | |
| Auburn | City | Sangamon | 3,786 | 4,317 |
| Augusta | Village | Hancock | 680 | 657 |
| Aurora | City | 100,279 | 142,990 | |
| Ava | City | Jackson | 675 | 662 |
| Aviston | Village | Clinton | 1,061 | 1,231 |
| Avon | Village | Fulton | 956 | 915 |
| Baldwin | Village | Randolph | 436 | 3,627 |
| Banner | Village | Fulton | 160 | 149 |
| Bannockburn | Village | Lake | 1,376 | 1,429 |
| Bardolph | Village | McDonough | 318 | 253 |
| Barrington | Village | 9,432 | 10,168 | |
| Barrington Hills | Village | 4,222 | 3,915 | |
| Barry | City | Pike | 1,414 | 1,368 |
| Bartelso | Village | Clinton | 478 | 593 |
| Bartlett | Village | 19,665 | 36,706 | |
| Bartonville | Village | Peoria | 6,573 | 6,310 |
| Basco | Village | Hancock | 104 | 107 |
| Batavia | City | 17,587 | 23,866 | |
| Batchtown | Village | Calhoun | 225 | 218 |
| Bath | Village | Mason | 388 | 310 |
| Bay View Gardens | Village | Woodford | 418 | 366 |
| Baylis | Village | Pike | 257 | 265 |
| Beach Park | Village | Lake | 9,336 | 10,072 |
| Beardstown | City | Cass | 5,367 | 5,766 |
| Beaverville | Village | Iroquois | 275 | 391 |
| Beckemeyer | Village | Clinton | 1,081 | 1,043 |
| Bedford Park | Village | Cook | 573 | 574 |
| Beecher | Village | Will | 1,982 | 2,033 |
| Beecher City | Village | Effingham | 437 | 493 |
| Belgium | Village | Vermilion | 560 | 466 |
| Belknap | Village | Johnson | 125 | 133 |
| Belle Prairie City | Town | Hamilton | 64 | 60 |
| Belle Rive | Village | Jefferson | 396 | 371 |
| Belleville | City | St. Clair | 43,058 | 41,410 |
| Bellevue | Village | Peoria | 1,551 | 1,887 |
| Bellflower | Village | McLean | 405 | 408 |
| Bellmont | Village | Wabash | 271 | 297 |
| Bellwood | Village | Cook | 20,240 | 20,535 |
| Belvidere | City | Boone | 15,771 | 20,820 |
| Bement | Village | Piatt | 1,720 | 1,784 |
| Benld | City | Macoupin | 1,628 | 1,541 |
| Bensenville | Village | 17,857 | 20,703 | |
| Benson | Village | Woodford | 410 | 408 |
| Bentley | Town | Hancock | 27 | 43 |
| Benton | City | Franklin | 7,249 | 6,880 |
| Berkeley | Village | Cook | 5,141 | 5,245 |
| Berlin | Village | Sangamon | 189 | 140 |
| Berwyn | City | Cook | 45,538 | 54,016 |
| Bethalto | Village | Madison | 9,533 | 9,454 |
| Bethany | Village | Moultrie | 1,387 | 1,287 |
| Biggsville | Village | Henderson | 349 | 343 |
| Bingham | Village | Fayette | 98 | 117 |
| Birds | Village | Lawrence | 160 | 51 |
| Bishop Hill | Village | Henry | 131 | 125 |
| Bismarck | Village | Vermilion | 613 | 542 |
| Blandinsville | Village | McDonough | 694 | 777 |
| Bloomingdale | Village | DuPage | 16,672 | 21,675 |
| Bloomington | City | McLean | 52,655 | 64,808 |
| Blue Island | City | Cook | 21,198 | 23,463 |
| Blue Mound | Village | Macon | 1,170 | 1,129 |
| Bluffs | Village | Scott | 774 | 748 |
| Bluford | Village | Jefferson | 747 | 785 |
| Bolingbrook | Village | 41,028 | 56,321 | |
| Bondville | Village | Champaign | 446 | 455 |
| Bone Gap | Village | Edwards | 271 | 272 |
| Bonfield | Village | Kankakee | 299 | 364 |
| Bonnie | Village | Jefferson | 406 | 424 |
| Boulder Hill | Census-Designated Place | Kendall | 8,894 | 8,169 |
| Bourbonnais | Village | Kankakee | 14,030 | 15,256 |
| Bowen | Village | Hancock | 471 | 535 |
| Braceville | Village | Grundy | 590 | 792 |
| Bradford | Village | Stark | 683 | 787 |
| Bradley | Village | Kankakee | 10,820 | 12,784 |
| Braidwood | City | Will | 3,667 | 5,203 |
| Breese | City | Clinton | 3,712 | 4,048 |
| Bridgeport | City | Lawrence | 2,217 | 2,168 |
| Bridgeview | Village | Cook | 14,494 | 15,335 |
| Brighton | Village | 2,324 | 2,196 | |
| Brimfield | Village | Peoria | 799 | 933 |
| Broadlands | Village | Champaign | 339 | 312 |
| Broadview | Village | Cook | 8,406 | 8,264 |
| Broadwell | Village | Logan | 161 | 169 |
| Brocton | Village | Edgar | 322 | 322 |
| Brookfield | Village | Cook | 18,836 | 19,085 |
| Brooklyn | Village | St. Clair | 1,144 | 676 |
| Brookport | City | Massac | 1,018 | 1,054 |
| Broughton | Village | Hamilton | 218 | 193 |
| Browning | Village | Schuyler | 193 | 130 |
| Browns | Village | Edwards | 207 | 175 |
| Brownstown | Village | Fayette | 725 | 705 |
| Brussels | Village | Calhoun | 127 | 141 |
| Bryant | Village | Fulton | 273 | 255 |
| Buckingham | Village | Kankakee | 340 | 237 |
| Buckley | Village | Iroquois | 560 | 593 |
| Buckner | Village | Franklin | 478 | 479 |
| Buda | Village | Bureau | 573 | 592 |
| Buffalo | Village | Sangamon | 503 | 491 |
| Buffalo Grove | Village | 36,653 | 42,909 | |
| Bull Valley | Village | McHenry | 656 | 726 |
| Bulpitt | Village | Christian | 206 | 206 |
| Buncombe | Village | Johnson | 211 | 186 |
| Bunker Hill | City | Macoupin | 1,761 | 1,801 |
| Burbank | City | Cook | 27,580 | 27,902 |
| Bureau Junction | Village | Bureau | 349 | 368 |
| Burlington | Village | Kane | 400 | 452 |
| Burnham | Village | Cook | 3,904 | 4,170 |
| Burnt Prairie | Village | White | 71 | 58 |
| Burr Ridge | Village | 8,000 | 10,408 | |
| Bush | Village | Williamson | 351 | 257 |
| Bushnell | City | McDonough | 3,276 | 3,221 |
| Butler | Village | Montgomery | 158 | 197 |
| Byron | City | Ogle | 2,291 | 2,917 |
| Cabery | Village | 268 | 263 | |
| Cahokia | Village | St. Clair | 17,681 | 16,391 |
| Cairo | City | Alexander | 4,911 | 3,632 |
| Caledonia | Village | Boone | 209 | 199 |
| Calhoun | Village | Richland | 232 | 222 |
| Calumet City | City | Cook | 37,712 | 39,071 |
| Calumet Park | Village | Cook | 8,399 | 8,516 |
| Camargo | Village | Douglas | 373 | 469 |
| Cambria | Village | Williamson | 1,239 | 1,330 |
| Cambridge | Village | Henry | 2,139 | 2,180 |
| Camden | Village | Schuyler | 111 | 97 |
| Camp Point | Village | Adams | 1,230 | 1,244 |
| Campbell Hill | Village | Jackson | 351 | 333 |
| Campus | Village | Livingston | 137 | 145 |
| Canton | City | Fulton | 14,050 | 15,288 |
| Cantrall | Village | Sangamon | 123 | 139 |
| Capron | Village | Boone | 732 | 961 |
| Carbon Cliff | Village | Rock Island | 1,490 | 1,689 |
| Carbon Hill | Village | Grundy | 375 | 392 |
| Carbondale | City | Jackson | 27,438 | 20,681 |
| Carlinville | City | Macoupin | 5,584 | 5,685 |
| Carlock | Village | McLean | 418 | 456 |
| Carlyle | City | Clinton | 3,509 | 3,406 |
| Carmi | City | White | 5,763 | 5,422 |
| Carol Stream | Village | DuPage | 31,785 | 40,438 |
| Carpentersville | Village | Kane | 23,037 | 30,586 |
| Carrier Mills | Village | Saline | 1,993 | 1,886 |
| Carrollton | City | Greene | 2,516 | 2,605 |
| Carterville | City | Williamson | 4,124 | 4,616 |
| Carthage | City | Hancock | 2,763 | 2,725 |
| Cary | Village | McHenry | 10,099 | 15,531 |
| Casey | City | 3,020 | 2,942 | |
| Caseyville | Village | St. Clair | 4,448 | 4,310 |
| Catlin | Village | Vermilion | 2,175 | 2,087 |
| Cave-In-Rock | Village | Hardin | 381 | 346 |
| Cedar Point | Village | La Salle | 273 | 262 |
| Cedarville | Village | Stephenson | 750 | 719 |
| Central City | Village | Marion | 1,381 | 1,371 |
| Centralia | City | 14,633 | 14,136 | |
| Centreville | City | St. Clair | 7,432 | 5,951 |
| Cerro Gordo | Village | Piatt | 1,436 | 1,436 |
| Chadwick | Village | Carroll | 571 | 505 |
| Champaign | City | Champaign | 64,399 | 67,518 |
| Chandlerville | Village | Cass | 664 | 704 |
| Channahon | Village | 4,474 | 7,344 | |
| Channel Lake | Census-Designated Place | Lake | 1,660 | 1,785 |
| Chapin | Village | Morgan | 632 | 592 |
| Charleston | City | Coles | 20,627 | 21,039 |
| Chatham | Village | Sangamon | 6,008 | 8,583 |
| Chatsworth | Town | Livingston | 1,185 | 1,265 |
| Chebanse | Village | 1,094 | 1,148 | |
| Chenoa | City | McLean | 1,753 | 1,845 |
| Cherry | Village | Bureau | 516 | 509 |
| Cherry Valley | Village | Winnebago | 1,428 | 2,191 |
| Chester | City | Randolph | 8,233 | 5,185 |
| Chesterfield | Village | Macoupin | 230 | 223 |
| Chicago | City | 2,783,660 | 2,896,016 | |
| Chicago Heights | City | Cook | 33,070 | 32,776 |
| Chicago Ridge | Village | Cook | 13,497 | 14,127 |
| Chillicothe | City | Peoria | 5,997 | 5,996 |
| Chrisman | City | Edgar | 1,305 | 1,318 |
| Christopher | City | Franklin | 2,889 | 2,836 |
| Cicero | Town | Cook | 67,355 | 85,616 |
| Cisco | Village | Piatt | 282 | 264 |
| Cisne | Village | Wayne | 650 | 673 |
| Cissna Park | Village | Iroquois | 805 | 811 |
| Claremont | Village | Richland | 251 | 212 |
| Clarendon Hills | Village | DuPage | 7,085 | 7,610 |
| Clay City | Village | Clay | 936 | 1,000 |
| Clayton | Village | Adams | 726 | 904 |
| Clear Lake | Village | Sangamon | 193 | 267 |
| Cleveland | Village | Henry | 250 | 253 |
| Clifton | Village | Iroquois | 1,347 | 1,317 |
| Clinton | City | De Witt | 7,501 | 7,485 |
| Coal City | Village | 4,025 | 4,797 | |
| Coal Valley | Village | 3,505 | 3,606 | |
| Coalton | Village | Montgomery | 325 | 307 |
| Coatsburg | Village | Adams | 199 | 226 |
| Cobden | Village | Union | 1,141 | 1,116 |
| Coffeen | City | Montgomery | 733 | 709 |
| Colchester | City | McDonough | 1,552 | 1,493 |
| Coleta | Village | Whiteside | 161 | 155 |
| Colfax | Village | McLean | 861 | 989 |
| Collinsville | City | 22,744 | 24,707 | |
| Colona | City | Henry | 5,072 | 5,173 |
| Colp | Village | Williamson | 235 | 224 |
| Columbia | City | 5,938 | 7,922 | |
| Columbus | Village | Adams | 88 | 112 |
| Compton | Village | Lee | 343 | 347 |
| Concord | Village | Morgan | 172 | 176 |
| Congerville | Village | Woodford | 397 | 466 |
| Cooksville | Village | McLean | 211 | 213 |
| Cordova | Village | Rock Island | 630 | 633 |
| Cornell | Village | Livingston | 556 | 511 |
| Cortland | Town | DeKalb | 1,126 | 2,066 |
| Coulterville | Village | Randolph | 990 | 1,230 |
| Country Club Hills | City | Cook | 15,389 | 16,169 |
| Countryside | City | Cook | 6,062 | 5,991 |
| Cowden | Village | Shelby | 599 | 612 |
| Coyne Center | Census-Designated Place | Rock Island | ... | 906 |
| Crainville | Village | Williamson | 953 | 992 |
| Creal Springs | City | Williamson | 802 | 702 |
| Crescent City | Village | Iroquois | 542 | 631 |
| Crest Hill | City | Will | 10,829 | 13,329 |
| Creston | Village | Ogle | 526 | 543 |
| Crestwood | Village | Cook | 11,122 | 11,251 |
| Crete | Village | Will | 6,680 | 7,346 |
| Creve Coeur | Village | Tazewell | 5,622 | 5,448 |
| Crossville | Village | White | 805 | 782 |
| Crystal Lake | City | McHenry | 25,174 | 38,000 |
| Crystal Lawns | Census-Designated Place | Will | 3,037 | 2,933 |
| Cuba | City | Fulton | 1,453 | 1,418 |
| Cullom | Village | Livingston | 568 | 563 |
| Cutler | Village | Perry | 523 | 543 |
| Cypress | Village | Johnson | 284 | 271 |
| Dahlgren | Village | Hamilton | 512 | 514 |
| Dakota | Village | Stephenson | 549 | 499 |
| Dallas City | City | 1,094 | 1,055 | |
| Dalton City | Village | Moultrie | 580 | 581 |
| Dalzell | Village | 648 | 717 | |
| Damiansville | Village | Clinton | 441 | 368 |
| Dana | Village | La Salle | 162 | 171 |
| Danforth | Village | Iroquois | 460 | 587 |
| Danvers | Village | McLean | 1,037 | 1,183 |
| Danville | City | Vermilion | 35,045 | 33,904 |
| Darien | City | DuPage | 20,575 | 22,860 |
| Davis | Village | Stephenson | 539 | 662 |
| Davis Junction | Village | Ogle | 230 | 491 |
| Dawson | Village | Sangamon | 536 | 466 |
| De Land | Village | Piatt | 458 | 475 |
| De Pue | Village | Bureau | 1,733 | 1,842 |
| De Soto | Village | Jackson | 1,508 | 1,653 |
| De Witt | Village | De Witt | 122 | 188 |
| Decatur | City | Macon | 85,424 | 81,860 |
| Deer Creek | Village | 634 | 605 | |
| Deer Grove | Village | Whiteside | 21 | 48 |
| Deer Park | Village | 2,757 | 3,102 | |
| Deerfield | Village | 17,342 | 18,420 | |
| DeKalb | City | DeKalb | 36,044 | 39,018 |
| Delavan | City | Tazewell | 1,595 | 1,825 |
| Des Plaines | City | Cook | 54,917 | 58,720 |
| Detroit | Village | Pike | 126 | 93 |
| Diamond | Village | 1,055 | 1,393 | |
| Dieterich | Village | Effingham | 593 | 591 |
| Divernon | Village | Sangamon | 1,160 | 1,201 |
| Dix | Village | Jefferson | 473 | 494 |
| Dixmoor | Village | Cook | 3,684 | 3,934 |
| Dixon | City | Lee | 15,488 | 15,941 |
| Dolton | Village | Cook | 24,011 | 25,614 |
| Dongola | Village | Union | 733 | 806 |
| Donnellson | Village | 167 | 243 | |
| Donovan | Village | Iroquois | 361 | 351 |
| Dorchester | Village | Macoupin | 153 | 142 |
| Dover | Village | Bureau | 159 | 172 |
| Dowell | Village | Jackson | 465 | 441 |
| Downers Grove | Village | DuPage | 47,493 | 48,724 |
| Downs | Village | McLean | 624 | 776 |
| Du Bois | Village | Washington | 260 | 222 |
| Du Quoin | City | Perry | 6,971 | 6,448 |
| Dunfermline | Village | Fulton | 265 | 262 |
| Dunlap | Village | Peoria | 866 | 926 |
| Dupo | Village | St. Clair | 3,537 | 3,933 |
| Durand | Village | Winnebago | 1,147 | 1,081 |
| Dwight | Village | 4,251 | 4,363 | |
| Eagarville | Village | Macoupin | 120 | 128 |
| Earlville | City | La Salle | 1,506 | 1,778 |
| East Alton | Village | Madison | 7,212 | 6,830 |
| East Brooklyn | Village | Grundy | 92 | 123 |
| East Cape Girardeau | Village | Alexander | 451 | 437 |
| East Carondelet | Village | St. Clair | 618 | 267 |
| East Dubuque | City | Jo Daviess | 2,020 | 1,995 |
| East Dundee | Village | 2,673 | 2,955 | |
| East Galesburg | Village | Knox | 668 | 839 |
| East Gillespie | Village | Macoupin | 193 | 234 |
| East Hazel Crest | Village | Cook | 1,567 | 1,607 |
| East Moline | City | Rock Island | 20,273 | 20,333 |
| East Peoria | City | Tazewell | 22,629 | 22,638 |
| East St. Louis | City | St. Clair | 40,865 | 31,542 |
| Easton | Village | Mason | 351 | 373 |
| Eddyville | Village | Pope | 151 | 153 |
| Edgewood | Village | Effingham | 502 | 527 |
| Edinburg | Village | Christian | 1,016 | 1,135 |
| Edwardsville | City | Madison | 16,155 | 21,491 |
| Effingham | City | Effingham | 12,135 | 12,384 |
| El Dara | Village | Pike | 86 | 89 |
| El Paso | City | 2,566 | 2,695 | |
| Elburn | Village | Kane | 1,328 | 2,756 |
| Eldorado | City | Saline | 4,818 | 4,534 |
| Eldred | Village | Greene | 254 | 211 |
| Elgin | City | 77,353 | 94,487 | |
| Elizabeth | Village | Jo Daviess | 721 | 682 |
| Elizabethtown | Village | Hardin | 427 | 348 |
| Elk Grove Village | Village | 33,487 | 34,727 | |
| Elkhart | Village | Logan | 475 | 443 |
| Elkville | Village | Jackson | 958 | 1,001 |
| Elliott | Village | Ford | 309 | 341 |
| Ellis Grove | Village | Randolph | 439 | 381 |
| Ellisville | Village | Fulton | 116 | 87 |
| Ellsworth | Village | McLean | 224 | 271 |
| Elmhurst | City | 41,929 | 42,762 | |
| Elmwood | City | Peoria | 1,849 | 1,945 |
| Elmwood Park | Village | Cook | 23,206 | 25,405 |
| Elsah | Village | Jersey | 886 | 635 |
| Elvaston | Village | Hancock | 198 | 152 |
| Elwood | Village | Will | 1,020 | 1,620 |
| Emden | Village | Logan | 459 | 515 |
| Emington | Village | Livingston | 135 | 120 |
| Energy | Village | Williamson | 1,075 | 1,175 |
| Enfield | Village | White | 683 | 625 |
| Equality | Village | Gallatin | 746 | 721 |
| Erie | Village | Whiteside | 1,512 | 1,589 |
| Essex | Village | Kankakee | 468 | 554 |
| Eureka | City | Woodford | 4,607 | 4,871 |
| Evanston | City | Cook | 73,234 | 74,239 |
| Evansville | Village | Randolph | 849 | 724 |
| Evergreen Park | Village | Cook | 20,874 | 20,821 |
| Ewing | Village | Franklin | 264 | 310 |
| Exeter | Village | Scott | 59 | 70 |
| Fairbury | City | Livingston | 3,669 | 3,968 |
| Fairfield | City | Wayne | 5,579 | 5,421 |
| Fairmont | Census-Designated Place | Will | ... | 2,563 |
| Fairmont City | Village | 2,125 | 2,436 | |
| Fairmount | Village | Vermilion | 680 | 640 |
| Fairview | Village | Fulton | 510 | 493 |
| Fairview Heights | City | St. Clair | 14,909 | 15,034 |
| Farina | Village | 575 | 558 | |
| Farmer City | City | De Witt | 2,128 | 2,055 |
| Farmersville | Village | Montgomery | 689 | 768 |
| Farmington | City | Fulton | 2,672 | 2,601 |
| Fayetteville | Village | St. Clair | 249 | 384 |
| Ferris | Village | Hancock | 160 | 168 |
| Fidelity | Village | Jersey | 127 | 105 |
| Fieldon | Village | Jersey | 277 | 271 |
| Fillmore | Village | Montgomery | 343 | 362 |
| Findlay | Village | Shelby | 787 | 723 |
| Fisher | Village | Champaign | 1,555 | 1,647 |
| Fithian | Village | Vermilion | 507 | 506 |
| Flanagan | Village | Livingston | 1,052 | 1,083 |
| Flat Rock | Village | Crawford | 421 | 415 |
| Flora | City | Clay | 5,155 | 5,086 |
| Florence | Village | Pike | 45 | 71 |
| Flossmoor | Village | Cook | 8,855 | 9,301 |
| Foosland | Village | Champaign | 132 | 90 |
| Ford Heights | Village | Cook | 4,272 | 3,456 |
| Forest City | Village | Mason | 321 | 287 |
| Forest Lake | Census-Designated Place | Lake | ... | 1,530 |
| Forest Park | Village | Cook | 14,836 | 15,688 |
| Forest View | Village | Cook | 745 | 778 |
| Forrest | Village | Livingston | 1,130 | 1,225 |
| Forreston | Village | Ogle | 1,368 | 1,469 |
| Forsyth | Village | Macon | 1,710 | 2,434 |
| Fox Lake | Village | 7,683 | 9,178 | |
| Fox Lake Hills | Census-Designated Place | Lake | ... | 2,561 |
| Fox River Grove | Village | 3,629 | 4,862 | |
| Fox River Valley Gardens | Village | 644 | 788 | |
| Frankfort | Village | 7,352 | 10,391 | |
| Frankfort Square | Census-Designated Place | Will | 6,227 | 7,766 |
| Franklin | Village | Morgan | 634 | 586 |
| Franklin Grove | Village | Lee | 967 | 1,052 |
| Franklin Park | Village | Cook | 18,485 | 19,434 |
| Freeburg | Village | St. Clair | 3,331 | 3,872 |
| Freeman Spur | Village | 296 | 273 | |
| Freeport | City | Stephenson | 26,210 | 26,443 |
| Fulton | City | Whiteside | 3,706 | 3,881 |
| Fults | Village | Monroe | 65 | 28 |
| Gages Lake | Census-Designated Place | Lake | 8,349 | 10,415 |
| Galatia | Village | Saline | 1,011 | 1,013 |
| Galena | City | Jo Daviess | 3,620 | 3,460 |
| Galesburg | City | Knox | 33,748 | 33,706 |
| Galva | City | Henry | 2,782 | 2,758 |
| Gardner | Village | Grundy | 1,242 | 1,406 |
| Garrett | Village | Douglas | 175 | 198 |
| Gays | Village | Moultrie | 237 | 259 |
| Geneseo | City | Henry | 6,009 | 6,480 |
| Geneva | City | Kane | 12,905 | 19,515 |
| Genoa | City | DeKalb | 3,285 | 4,169 |
| Georgetown | City | Vermilion | 3,816 | 3,628 |
| German Valley | Village | Stephenson | 491 | 481 |
| Germantown | Village | Clinton | 1,172 | 1,118 |
| Germantown Hills | Village | Woodford | 1,257 | 2,111 |
| Gibson | City | Ford | 3,392 | 3,373 |
| Gifford | Village | Champaign | 858 | 815 |
| Gilberts | Village | Kane | 1,003 | 1,279 |
| Gillespie | City | Macoupin | 3,639 | 3,412 |
| Gilman | City | Iroquois | 1,818 | 1,793 |
| Girard | City | Macoupin | 2,185 | 2,245 |
| Gladstone | Village | Henderson | 270 | 284 |
| Glasford | Village | Peoria | 1,123 | 1,076 |
| Glasgow | Village | Scott | 163 | 170 |
| Glen Carbon | Village | Madison | 7,889 | 10,425 |
| Glen Ellyn | Village | DuPage | 25,409 | 26,999 |
| Glencoe | Village | Cook | 8,423 | 8,762 |
| Glendale Heights | Village | DuPage | 27,610 | 31,765 |
| Glenview | Village | Cook | 39,288 | 41,847 |
| Glenwood | Village | Cook | 9,279 | 9,000 |
| Godfrey | Village | Madison | 15,660 | 16,286 |
| Godley | Village | 345 | 594 | |
| Golconda | City | Pope | 823 | 726 |
| Golden | Village | Adams | 565 | 629 |
| Golden Gate | Village | Wayne | 88 | 100 |
| Golf | Village | Cook | 450 | 451 |
| Good Hope | Village | McDonough | 416 | 415 |
| Goodfield | Village | 478 | 686 | |
| Goodings Grove | Census-Designated Place | Will | 14,054 | 17,084 |
| Goreville | Village | Johnson | 875 | 938 |
| Gorham | Village | Jackson | 313 | 256 |
| Grafton | City | Jersey | 991 | 609 |
| Grand Ridge | Village | La Salle | 575 | 546 |
| Grand Tower | City | Jackson | 759 | 624 |
| Grandview | Village | Sangamon | 1,637 | 1,537 |
| Grandwood Park | Census-Designated Place | Lake | ... | 4,521 |
| Granite City | City | Madison | 33,132 | 31,301 |
| Grant Park | Village | Kankakee | 1,089 | 1,358 |
| Grantfork | Village | Madison | 258 | 254 |
| Granville | Village | Putnam | 1,400 | 1,414 |
| Grayslake | Village | Lake | 7,746 | 18,506 |
| Grayville | City | 2,045 | 1,725 | |
| Green Oaks | Village | Lake | 2,180 | 3,572 |
| Green Valley | Village | Tazewell | 736 | 728 |
| Greenfield | City | Greene | 1,170 | 1,179 |
| Greenup | Village | Cumberland | 1,616 | 1,532 |
| Greenview | Village | Menard | 850 | 862 |
| Greenville | City | Bond | 5,283 | 6,955 |
| Greenwood | Village | McHenry | 216 | 244 |
| Gridley | Village | McLean | 1,304 | 1,411 |
| Griggsville | City | Pike | 1,241 | 1,258 |
| Gulf Port | Village | Henderson | 209 | 207 |
| Gurnee | Village | Lake | 13,838 | 28,834 |
| Hainesville | Village | Lake | 176 | 2,129 |
| Hamburg | Village | Calhoun | 150 | 126 |
| Hamel | Village | Madison | 520 | 570 |
| Hamilton | City | Hancock | 3,293 | 3,029 |
| Hammond | Village | Piatt | 527 | 518 |
| Hampshire | Village | Kane | 1,946 | 2,900 |
| Hampton | Village | Rock Island | 1,586 | 1,626 |
| Hanaford | Village | Franklin | 380 | 55 |
| Hanna City | Village | Peoria | 1,115 | 1,013 |
| Hanover | Village | Jo Daviess | 931 | 836 |
| Hanover Park | Village | 32,910 | 38,278 | |
| Hardin | Village | Calhoun | 1,071 | 959 |
| Harmon | Village | Lee | 186 | 149 |
| Harrisburg | City | Saline | 9,690 | 9,860 |
| Harristown | Village | Macon | 1,329 | 1,338 |
| Hartford | Village | Madison | 1,679 | 1,545 |
| Hartsburg | Village | Logan | 306 | 358 |
| Harvard | City | McHenry | 6,067 | 7,996 |
| Harvel | Village | 213 | 235 | |
| Harvey | City | Cook | 30,283 | 30,000 |
| Harwood Heights | Village | Cook | 7,715 | 8,297 |
| Havana | City | Mason | 3,674 | 3,577 |
| Hawthorn Woods | Village | Lake | 4,302 | 6,002 |
| Hazel Crest | Village | Cook | 13,366 | 14,816 |
| Hebron | Village | McHenry | 826 | 1,038 |
| Hecker | Village | 534 | 475 | |
| Henderson | Village | Knox | 290 | 319 |
| Hennepin | Village | Putnam | 669 | 707 |
| Henning | Village | Vermilion | 273 | 241 |
| Henry | City | Marshall | 2,665 | 2,540 |
| Herrick | Village | Shelby | 466 | 524 |
| Herrin | City | Williamson | 11,073 | 11,298 |
| Herscher | Village | Kankakee | 1,278 | 1,523 |
| Hettick | Village | Macoupin | 211 | 182 |
| Heyworth | Village | McLean | 1,666 | 2,431 |
| Hickory Hills | City | Cook | 13,033 | 13,926 |
| Hidalgo | Village | Jasper | 122 | 123 |
| Highland | City | Madison | 7,747 | 8,438 |
| Highland Park | City | Lake | 30,561 | 31,365 |
| Highwood | City | Lake | 5,358 | 4,143 |
| Hillcrest | Village | Ogle | 828 | 1,158 |
| Hillsboro | City | Montgomery | 4,372 | 4,359 |
| Hillsdale | Village | Rock Island | 564 | 588 |
| Hillside | Village | Cook | 7,667 | 8,155 |
| Hillview | Village | Greene | 271 | 179 |
| Hinckley | Village | DeKalb | 1,765 | 1,994 |
| Hindsboro | Village | Douglas | 345 | 361 |
| Hinsdale | Village | 16,011 | 17,349 | |
| Hodgkins | Village | Cook | 1,956 | 2,134 |
| Hoffman | Village | Clinton | 492 | 460 |
| Hoffman Estates | Village | 46,367 | 49,495 | |
| Holiday Hills | Village | McHenry | 754 | 831 |
| Hollowayville | Village | Bureau | 30 | 90 |
| Homer | Village | Champaign | 1,282 | 1,200 |
| Hometown | City | Cook | 4,769 | 4,467 |
| Homewood | Village | Cook | 19,072 | 19,543 |
| Hoopeston | City | Vermilion | 5,857 | 5,965 |
| Hooppole | Village | Henry | 196 | 162 |
| Hopedale | Village | Tazewell | 817 | 929 |
| Hopewell | Village | Marshall | 354 | 396 |
| Hopkins Park | Village | Kankakee | 601 | 711 |
| Hoyleton | Village | Washington | 659 | 520 |
| Hudson | Village | McLean | 1,008 | 1,510 |
| Huey | Village | Clinton | 210 | 196 |
| Hull | Village | Pike | 514 | 474 |
| Humboldt | Village | Coles | 481 | 481 |
| Hume | Village | Edgar | 413 | 382 |
| Huntley | Village | 2,665 | 5,730 | |
| Hurst | City | Williamson | 858 | 805 |
| Hutsonville | Village | Crawford | 620 | 568 |
| Illiopolis | Village | Sangamon | 903 | 916 |
| Ina | Village | Jefferson | 489 | 2,455 |
| Indian Creek | Village | Lake | 205 | 194 |
| Indian Head Park | Village | Cook | 3,343 | 3,685 |
| Indianola | Village | Vermilion | 336 | 207 |
| Industry | Village | McDonough | 571 | 540 |
| Ingalls Park | Census-Designated Place | Will | 3,173 | 3,082 |
| Inverness | Village | Cook | 6,567 | 6,749 |
| Iola | Village | Clay | 163 | 171 |
| Ipava | Village | Fulton | 463 | 506 |
| Iroquois | Village | Iroquois | 199 | 207 |
| Irving | Village | Montgomery | 520 | 2,484 |
| Irvington | Village | Washington | 827 | 736 |
| Irwin | Village | Kankakee | 88 | 92 |
| Island Lake | Village | 4,529 | 8,153 | |
| Itasca | Village | DuPage | 6,974 | 8,302 |
| Iuka | Village | Marion | 425 | 598 |
| Ivesdale | Village | 339 | 288 | |
| Jacksonville | City | Morgan | 19,483 | 18,940 |
| Jeffersonville | Village | Wayne | 311 | 366 |
| Jeisyville | Village | Christian | 135 | 128 |
| Jerome | Village | Sangamon | 1,560 | 1,414 |
| Jerseyville | City | Jersey | 7,425 | 7,984 |
| Jewett | Village | Cumberland | 194 | 232 |
| Johnsburg | Village | McHenry | 4,527 | 5,391 |
| Johnsonville | Village | Wayne | 68 | 69 |
| Johnston City | City | Williamson | 3,750 | 3,557 |
| Joliet | City | 78,585 | 106,221 | |
| Jonesboro | City | Union | 1,821 | 1,853 |
| Joppa | Village | Massac | 498 | 409 |
| Joy | Village | Mercer | 454 | 373 |
| Junction | Village | Gallatin | 201 | 139 |
| Junction City | Village | Marion | 536 | 559 |
| Justice | Village | Cook | 11,117 | 12,193 |
| Kampsville | Village | Calhoun | 389 | 302 |
| Kane | Village | Greene | 456 | 459 |
| Kangley | Village | La Salle | 250 | 287 |
| Kankakee | City | Kankakee | 27,972 | 27,491 |
| Kansas | Village | Edgar | 871 | 842 |
| Kappa | Village | Woodford | 109 | 170 |
| Karnak | Village | Pulaski | 581 | 619 |
| Kaskaskia | Village | Randolph | 47 | 9 |
| Keenes | Village | Wayne | 62 | 99 |
| Keensburg | Village | Wabash | 238 | 252 |
| Keithsburg | City | Mercer | 747 | 714 |
| Kell | Village | Marion | 232 | 231 |
| Kempton | Village | Ford | 219 | 235 |
| Kenilworth | Village | Cook | 2,420 | 2,494 |
| Kenney | Village | De Witt | 390 | 374 |
| Kewanee | City | Henry | 13,120 | 12,944 |
| Keyesport | Village | 441 | 481 | |
| Kilbourne | Village | Mason | 350 | 375 |
| Kildeer | Village | Lake | 2,567 | 3,460 |
| Kincaid | Village | Christian | 1,353 | 1,441 |
| Kinderhook | Village | Pike | 257 | 249 |
| Kingston | Village | DeKalb | 603 | 980 |
| Kingston Mines | Village | Peoria | 297 | 259 |
| Kinmundy | City | Marion | 959 | 892 |
| Kinsman | Village | Grundy | 112 | 109 |
| Kirkland | Village | DeKalb | 1,005 | 1,166 |
| Kirkwood | Village | Warren | 887 | 794 |
| Knoxville | City | Knox | 3,298 | 3,183 |
| La Fayette | Village | Stark | 231 | 227 |
| La Grange | Village | Cook | 18,575 | 15,608 |
| La Grange Park | Village | Cook | 9,600 | 13,295 |
| La Harpe | City | Hancock | 1,407 | 1,385 |
| La Moille | Village | Bureau | 658 | 773 |
| La Prairie | Village | Adams | 68 | 60 |
| La Rose | Village | Marshall | 130 | 159 |
| La Salle | City | La Salle | 9,538 | 9,796 |
| Lacon | City | Marshall | 2,015 | 1,979 |
| Ladd | Village | Bureau | 1,283 | 1,313 |
| Lake Barrington | Village | Lake | 4,114 | 4,757 |
| Lake Bluff | Village | Lake | 5,526 | 6,056 |
| Lake Catherine | Census-Designated Place | Lake | 1,515 | 1,490 |
| Lake Forest | City | Lake | 17,775 | 20,059 |
| Lake in the Hills | Village | McHenry | 5,812 | 23,152 |
| Lake of the Woods | Census-Designated Place | Champaign | 2,748 | 3,026 |
| Lake Summerset | Census-Designated Place | 1,296 | 2,061 | |
| Lake Villa | Village | Lake | 3,014 | 5,864 |
| Lake Zurich | Village | Lake | 15,320 | 18,104 |
| Lakemoor | Village | 1,170 | 2,788 | |
| Lakewood | Village | McHenry | 1,649 | 2,337 |
| Lakewood Shores | Census-Designated Place | Will | 1,606 | 1,487 |
| Lanark | City | Carroll | 1,438 | 1,584 |
| Lansing | Village | Cook | 28,221 | 28,332 |
| Latham | Village | Logan | 486 | 371 |
| Lawrenceville | City | Lawrence | 4,913 | 4,745 |
| Le Roy | City | McLean | 2,857 | 3,332 |
| Leaf River | Village | Ogle | 546 | 555 |
| Lebanon | City | St. Clair | 3,690 | 3,523 |
| Lee | Village | 319 | 313 | |
| Leland | Village | La Salle | 818 | 970 |
| Leland Grove | City | Sangamon | 1,682 | 1,592 |
| Lemont | Village | 7,875 | 13,098 | |
| Lena | Village | Stephenson | 2,661 | 2,887 |
| Lenzburg | Village | St. Clair | 530 | 577 |
| Leonore | Village | La Salle | 134 | 110 |
| Lerna | Village | Coles | 243 | 322 |
| Lewistown | City | Fulton | 2,627 | 2,522 |
| Lexington | City | McLean | 1,832 | 1,912 |
| Liberty | Village | Adams | 543 | 519 |
| Libertyville | Village | Lake | 19,952 | 20,742 |
| Lily Lake | Village | Kane | 600 | 825 |
| Lima | Village | Adams | 120 | 159 |
| Lincoln | City | Logan | 15,588 | 15,369 |
| Lincolnshire | Village | Lake | 4,934 | 6,108 |
| Lincolnwood | Village | Cook | 11,342 | 12,359 |
| Lindenhurst | Village | Lake | 8,349 | 12,539 |
| Lisbon | Village | Kendall | 225 | 248 |
| Lisle | Village | DuPage | 19,588 | 21,182 |
| Litchfield | City | Montgomery | 7,118 | 6,815 |
| Little York | Village | Warren | 349 | 269 |
| Littleton | Village | Schuyler | 181 | 197 |
| Liverpool | Village | Fulton | 129 | 119 |
| Livingston | Village | Madison | 928 | 825 |
| Loami | Village | Sangamon | 803 | 804 |
| Lockport | City | Will | 9,690 | 15,191 |
| Loda | Village | Iroquois | 390 | 419 |
| Lomax | Village | Henderson | 473 | 477 |
| Lombard | Village | DuPage | 40,113 | 42,322 |
| London Mills | Village | 485 | 447 | |
| Long Creek | Village | Macon | 1,217 | 1,364 |
| Long Grove | Village | Lake | 4,481 | 6,735 |
| Long Lake | Census-Designated Place | Lake | ... | 3,356 |
| Long Point | Village | Livingston | 212 | 247 |
| Longview | Village | Champaign | 169 | 153 |
| Loraine | Village | Adams | 332 | 363 |
| Lostant | Village | La Salle | 508 | 486 |
| Louisville | Village | Clay | 1,115 | 1,242 |
| Loves Park | City | 15,837 | 20,044 | |
| Lovington | Village | Moultrie | 1,145 | 1,222 |
| Ludlow | Village | Champaign | 359 | 324 |
| Lyndon | Village | Whiteside | 603 | 566 |
| Lynnville | Village | Morgan | 112 | 137 |
| Lynwood | Village | Cook | 6,489 | 7,377 |
| Lyons | Village | Cook | 9,843 | 10,255 |
| Macedonia | Village | 58 | 51 | |
| Machesney Park | Village | Winnebago | 18,921 | 20,759 |
| Mackinaw | Village | Tazewell | 1,337 | 1,452 |
| Macomb | City | McDonough | 20,158 | 18,558 |
| Macon | City | Macon | 1,323 | 1,213 |
| Madison | City | 5,104 | 4,545 | |
| Maeystown | Village | Monroe | 112 | 148 |
| Magnolia | Village | Putnam | 261 | 279 |
| Mahomet | Village | Champaign | 3,499 | 4,877 |
| Makanda | Village | Jackson | 327 | 419 |
| Malden | Village | Bureau | 373 | 343 |
| Malta | Village | DeKalb | 897 | 969 |
| Manchester | Village | Scott | 347 | 354 |
| Manhattan | Village | Will | 2,166 | 3,330 |
| Manito | Village | Mason | 1,709 | 1,733 |
| Manlius | Village | Bureau | 366 | 355 |
| Mansfield | Village | Piatt | 947 | 949 |
| Manteno | Village | Kankakee | 3,798 | 6,414 |
| Maple Park | Village | 639 | 765 | |
| Mapleton | Village | Peoria | 214 | 227 |
| Maquon | Village | Knox | 333 | 318 |
| Marengo | City | McHenry | 4,811 | 6,355 |
| Marietta | Village | Fulton | 142 | 150 |
| Marine | Village | Madison | 972 | 910 |
| Marion | City | Williamson | 14,788 | 16,035 |
| Marissa | Village | St. Clair | 2,369 | 2,141 |
| Mark | Village | Putnam | 400 | 491 |
| Markham | City | Cook | 12,978 | 12,620 |
| Maroa | City | Macon | 1,594 | 1,654 |
| Marquette Heights | City | Tazewell | 3,105 | 2,794 |
| Marseilles | City | La Salle | 4,833 | 4,655 |
| Marshall | City | Clark | 3,656 | 3,771 |
| Martinsville | City | Clark | 1,205 | 1,225 |
| Martinton | Village | Iroquois | 302 | 375 |
| Maryville | Village | Madison | 2,859 | 4,651 |
| Mascoutah | City | St. Clair | 5,710 | 5,659 |
| Mason | Town | Effingham | 387 | 396 |
| Mason City | City | Mason | 2,445 | 2,558 |
| Matherville | Village | Mercer | 703 | 772 |
| Matteson | Village | 11,635 | 12,928 | |
| Mattoon | City | Coles | 18,565 | 18,291 |
| Maunie | Village | White | 155 | 177 |
| Maywood | Village | Cook | 27,147 | 26,987 |
| Mazon | Village | Grundy | 750 | 904 |
| McCook | Village | Cook | 277 | 254 |
| McCullom Lake | Village | McHenry | 1,033 | 1,038 |
| McHenry | City | McHenry | 16,646 | 21,501 |
| McLean | Village | McLean | 819 | 808 |
| McLeansboro | City | Hamilton | 2,764 | 2,945 |
| McNabb | Village | Putnam | 314 | 310 |
| Mechanicsburg | Village | Sangamon | 530 | 456 |
| Media | Village | Henderson | 146 | 130 |
| Medora | Village | Macoupin | 420 | 501 |
| Melrose Park | Village | Cook | 20,922 | 23,171 |
| Melvin | Village | Ford | 465 | 465 |
| Mendon | Village | Adams | 865 | 883 |
| Mendota | City | La Salle | 7,035 | 7,272 |
| Menominee | Village | Jo Daviess | 211 | 237 |
| Meredosia | Village | Morgan | 1,157 | 1,041 |
| Merrionette Park | Village | Cook | 2,084 | 1,999 |
| Metamora | Village | Woodford | 2,545 | 2,700 |
| Metcalf | Village | Edgar | 227 | 213 |
| Metropolis | City | Massac | 7,169 | 6,482 |
| Mettawa | Village | Lake | 392 | 367 |
| Middletown | Village | Logan | 438 | 434 |
| Midlothian | Village | Cook | 14,352 | 14,315 |
| Milan | Village | Rock Island | 5,654 | 5,348 |
| Milford | Village | Iroquois | 1,550 | 1,369 |
| Mill Creek | Village | Union | 87 | 76 |
| Mill Shoals | Village | 247 | 235 | |
| Milledgeville | Village | Carroll | 1,085 | 1,016 |
| Millington | Village | 500 | 458 | |
| Millstadt | Village | St. Clair | 2,724 | 2,794 |
| Milton | Village | Pike | 270 | 274 |
| Mineral | Village | Bureau | 250 | 272 |
| Minier | Village | Tazewell | 1,155 | 1,244 |
| Minonk | City | Woodford | 2,059 | 2,168 |
| Minooka | Village | 2,605 | 3,971 | |
| Modesto | Village | Macoupin | 240 | 252 |
| Mokena | Village | Will | 6,958 | 14,583 |
| Moline | City | Rock Island | 44,046 | 43,768 |
| Momence | City | Kankakee | 2,943 | 3,171 |
| Monee | Village | Will | 1,132 | 2,924 |
| Monmouth | City | Warren | 9,549 | 9,841 |
| Montgomery | Village | 4,614 | 5,471 | |
| Monticello | City | Piatt | 4,775 | 5,138 |
| Montrose | Village | 306 | 257 | |
| Morris | City | Grundy | 10,306 | 11,928 |
| Morrison | City | Whiteside | 4,557 | 4,447 |
| Morrisonville | Village | Christian | 1,113 | 1,068 |
| Morton | Village | Tazewell | 13,994 | 15,198 |
| Morton Grove | Village | Cook | 22,260 | 22,451 |
| Mound City | City | Pulaski | 763 | 692 |
| Mound Station | Village | Brown | 147 | 127 |
| Mounds | City | Pulaski | 1,410 | 1,117 |
| Mount Auburn | Village | Christian | 544 | 515 |
| Mount Carmel | City | Wabash | 8,362 | 7,982 |
| Mount Carroll | City | Carroll | 1,768 | 1,832 |
| Mount Clare | Village | Macoupin | 296 | 433 |
| Mount Erie | Village | Wayne | 137 | 105 |
| Mount Morris | Village | Ogle | 2,953 | 3,013 |
| Mount Olive | City | Macoupin | 2,154 | 2,150 |
| Mount Prospect | Village | Cook | 53,081 | 56,265 |
| Mount Pulaski | City | Logan | 1,611 | 1,701 |
| Mount Sterling | City | Brown | 1,994 | 2,070 |
| Mount Vernon | City | Jefferson | 17,868 | 16,269 |
| Mount Zion | Village | Macon | 4,520 | 4,845 |
| Moweaqua | Village | 1,792 | 1,923 | |
| Muddy | Village | Saline | 87 | 78 |
| Mulberry Grove | Village | Bond | 658 | 671 |
| Muncie | Village | Vermilion | 182 | 155 |
| Mundelein | Village | Lake | 21,340 | 30,935 |
| Murphysboro | City | Jackson | 9,220 | 13,295 |
| Murrayville | Village | Morgan | 675 | 644 |
| Naperville | City | 86,958 | 128,358 | |
| Naplate | Village | La Salle | 609 | 523 |
| Naples | Town | Scott | 130 | 134 |
| Nashville | City | Washington | 3,102 | 3,147 |
| Nason | City | Jefferson | 235 | 234 |
| Nauvoo | City | Hancock | 1,100 | 1,063 |
| Nebo | Village | Pike | 399 | 408 |
| Nelson | Village | Lee | 174 | 163 |
| Neoga | City | Cumberland | 1,697 | 1,854 |
| Neponset | Village | Bureau | 535 | 519 |
| New Athens | Village | St. Clair | 2,008 | 1,981 |
| New Baden | Village | 2,770 | 3,001 | |
| New Bedford | Village | Bureau | 99 | 95 |
| New Berlin | Village | Sangamon | 785 | 1,030 |
| New Boston | City | Mercer | 620 | 632 |
| New Burnside | Village | Johnson | 253 | 242 |
| New Canton | Town | Pike | 405 | 417 |
| New Douglas | Village | Madison | 400 | 369 |
| New Grand Chain | Village | Pulaski | 273 | 233 |
| New Haven | Village | Gallatin | 459 | 477 |
| New Holland | Village | Logan | 321 | 318 |
| New Lenox | Village | Will | 10,079 | 17,771 |
| New Millford | Village | Winnebago | 541 | 541 |
| New Minden | Village | Washington | 177 | 204 |
| New Salem | Village | Pike | 147 | 136 |
| Newark | Village | Kendall | 840 | 887 |
| Newman | City | Douglas | 960 | 956 |
| Newton | City | Jasper | 3,226 | 3,069 |
| Niantic | Village | Macon | 647 | 738 |
| Niles | Village | Cook | 28,794 | 30,068 |
| Nilwood | Town | Macoupin | 238 | 284 |
| Noble | Village | Richland | 756 | 746 |
| Nokomis | City | Montgomery | 2,587 | 2,389 |
| Nora | Village | Jo Daviess | 164 | 118 |
| Normal | Town | McLean | 40,134 | 45,386 |
| Norridge | Village | Cook | 14,464 | 14,582 |
| Norris | Village | Fulton | 207 | 194 |
| Norris City | Village | White | 1,342 | 1,057 |
| North Aurora | Village | Kane | 6,254 | 10,585 |
| North Barrington | Village | Lake | 2,068 | 2,918 |
| North Chicago | City | Lake | 35,989 | 35,918 |
| North City | Village | Franklin | 575 | 630 |
| North Henderson | Village | Mercer | 184 | 187 |
| North Pekin | Village | Tazewell | 1,514 | 1,574 |
| North Riverside | Village | Cook | 6,253 | 6,688 |
| North Utica | Village | La Salle | 848 | 977 |
| Northbrook | Village | Cook | 32,743 | 33,435 |
| Northfield | Village | Cook | 5,068 | 5,389 |
| Northlake | City | Cook | 12,342 | 11,878 |
| Norwood | Village | Peoria | 482 | 473 |
| O'Fallon | City | St. Clair | 16,550 | 21,910 |
| Oak Brook | Village | 9,382 | 8,702 | |
| Oak Forest | City | Cook | 27,109 | 28,051 |
| Oak Grove | Village | Rock Island | 682 | 1,318 |
| Oak Lawn | Village | Cook | 56,316 | 55,245 |
| Oak Park | Village | Cook | 53,610 | 52,524 |
| Oakbrook Terrace | City | DuPage | 2,186 | 2,300 |
| Oakdale | Village | Washington | 226 | 213 |
| Oakford | Village | Menard | 246 | 309 |
| Oakland | City | Coles | 1,040 | 996 |
| Oakwood | Village | Vermilion | 1,544 | 1,502 |
| Oakwood Hills | Village | McHenry | 1,657 | 2,194 |
| Oblong | Village | Crawford | 1,740 | 1,580 |
| Oconee | Village | Shelby | 201 | 202 |
| Odell | Village | Livingston | 1,028 | 1,014 |
| Odin | Village | Marion | 1,150 | 1,122 |
| Ogden | Village | Champaign | 685 | 743 |
| Oglesby | City | La Salle | 3,644 | 3,647 |
| Ohio | Village | Bureau | 502 | 540 |
| Okawville | Village | Washington | 1,274 | 1,355 |
| Old Mill Creek | Village | Lake | 198 | 251 |
| Old Ripley | Village | Bond | 95 | 127 |
| Old Shawneetown | Village | Gallatin | 363 | 278 |
| Olmsted | Village | Pulaski | 358 | 299 |
| Olney | City | Richland | 9,649 | 8,631 |
| Olympia Fields | Village | Cook | 4,252 | 4,732 |
| Omaha | Village | Gallatin | 273 | 263 |
| Onarga | Village | Iroquois | 1,301 | 1,438 |
| Oneida | City | Knox | 723 | 752 |
| Oquawka | Village | Henderson | 1,442 | 1,539 |
| Orangeville | Village | Stephenson | 583 | 751 |
| Oreana | Village | Macon | 847 | 892 |
| Oregon | City | Ogle | 3,968 | 4,060 |
| Orient | City | Franklin | 427 | 296 |
| Orion | Village | Henry | 1,815 | 1,713 |
| Orland Hills | Village | Cook | 5,458 | 6,779 |
| Orland Park | Village | 37,885 | 51,077 | |
| Oswego | Village | Kendall | 4,224 | 13,326 |
| Ottawa | City | La Salle | 17,770 | 18,307 |
| Otterville | Town | Jersey | 115 | 120 |
| Owaneco | Village | Christian | 260 | 256 |
| Palatine | Village | Cook | 49,791 | 65,479 |
| Palestine | Village | Crawford | 1,649 | 1,366 |
| Palmer | Village | Christian | 275 | 248 |
| Palmyra | Village | Macoupin | 722 | 733 |
| Palos Heights | City | Cook | 11,424 | 11,260 |
| Palos Hills | City | Cook | 17,780 | 17,665 |
| Palos Park | Village | Cook | 4,288 | 4,689 |
| Pana | City | Christian | 5,997 | 5,614 |
| Panama | Village | 333 | 323 | |
| Panola | Village | Woodford | 25 | 33 |
| Papineau | Village | Iroquois | 142 | 196 |
| Paris | City | Edgar | 9,247 | 9,077 |
| Park City | City | Lake | 4,999 | 6,637 |
| Park Forest | Village | 24,695 | 23,462 | |
| Park Ridge | City | Cook | 37,360 | 37,775 |
| Parkersburg | Village | Richland | 214 | 234 |
| Patoka | Village | Marion | 666 | 633 |
| Paw Paw | Village | Lee | 805 | 852 |
| Pawnee | Village | Sangamon | 2,379 | 2,647 |
| Paxton | City | Ford | 4,323 | 4,525 |
| Payson | Village | Adams | 1,114 | 1,066 |
| Pearl | Village | Pike | 177 | 187 |
| Pearl City | Village | Stephenson | 682 | 780 |
| Pecatonica | Village | Winnebago | 1,765 | 1,997 |
| Pekin | City | 32,228 | 33,857 | |
| Peoria | City | Peoria | 113,822 | 112,936 |
| Peoria Heights | Village | 6,829 | 6,635 | |
| Peotone | Village | Will | 3,072 | 3,385 |
| Percy | Village | Randolph | 910 | 942 |
| Perry | Village | Pike | 487 | 437 |
| Peru | City | La Salle | 9,780 | 9,835 |
| Pesotum | Village | Champaign | 575 | 521 |
| Petersburg | City | Menard | 2,280 | 2,299 |
| Phillipstown | Village | White | 48 | 28 |
| Philo | Village | Champaign | 1,028 | 1,314 |
| Phoenix | Village | Cook | 2,220 | 2,157 |
| Pierron | Village | 554 | 653 | |
| Pinckneyville | City | Perry | 3,641 | 5,464 |
| Pingree Grove | Village | Kane | 94 | 124 |
| Piper City | Village | Ford | 760 | 781 |
| Pistakee Highlands | Census-Designated Place | McHenry | 3,848 | 3,812 |
| Pittsburg | Village | Williamson | 602 | 575 |
| Pittsfield | City | Pike | 4,272 | 4,211 |
| Plainfield | Village | Will | 5,254 | 13,038 |
| Plainville | Village | Adams | 263 | 248 |
| Plano | City | Kendall | 5,137 | 5,633 |
| Pleasant Hill | Village | Pike | 1,047 | 1,047 |
| Pleasant Plains | Village | Sangamon | 760 | 777 |
| Plymouth | Village | 511 | 562 | |
| Pocahontas | Village | Bond | 837 | 727 |
| Polo | City | Ogle | 2,513 | 2,477 |
| Pontiac | City | Livingston | 11,612 | 11,864 |
| Pontoon Beach | Village | Madison | 4,562 | 5,620 |
| Pontoosuc | Village | Hancock | 206 | 171 |
| Poplar Grove | Village | Boone | 769 | 1,368 |
| Port Byron | Village | Rock Island | 1,173 | 1,535 |
| Posen | Village | Cook | 4,220 | 4,730 |
| Potomac | Village | Vermilion | 753 | 681 |
| Prairie City | Village | McDonough | 503 | 461 |
| Prairie du Rocher | Village | Randolph | 592 | 613 |
| Prairie Grove | Village | McHenry | 697 | 960 |
| Preston Heights | Census-Designated Place | Will | ... | 2,527 |
| Princeton | City | Bureau | 7,491 | 7,501 |
| Princeville | Village | Peoria | 1,423 | 1,621 |
| Prophetstown | City | Whiteside | 1,889 | 2,023 |
| Prospect Heights | City | Cook | 15,543 | 17,081 |
| Pulaski | Village | Pulaski | 361 | 274 |
| Quincy | City | Adams | 40,523 | 40,366 |
| Radom | Village | Washington | 172 | 395 |
| Raleigh | Village | Saline | 322 | 330 |
| Ramsey | Village | Fayette | 980 | 1,056 |
| Rankin | Village | Vermilion | 619 | 617 |
| Ransom | Village | La Salle | 435 | 409 |
| Rantoul | Village | Champaign | 17,256 | 12,857 |
| Rapids City | Village | Rock Island | 896 | 953 |
| Raritan | Village | Henderson | 146 | 140 |
| Raymond | Village | Montgomery | 842 | 927 |
| Red Bud | City | Randolph | 3,102 | 3,422 |
| Reddick | Village | 202 | 219 | |
| Redmon | Village | Edgar | 201 | 199 |
| Reynolds | Village | 582 | 508 | |
| Richmond | Village | McHenry | 1,061 | 1,091 |
| Richton Park | Village | Cook | 10,520 | 12,533 |
| Richview | Village | Washington | 327 | 308 |
| Ridge Farm | Village | Vermilion | 939 | 912 |
| Ridgway | Village | Gallatin | 1,111 | 928 |
| Ridott | Village | Stephenson | 156 | 159 |
| Ringwood | Village | McHenry | 492 | 471 |
| Rio | Village | Knox | 260 | 240 |
| Ripley | Village | Brown | 75 | 103 |
| River Forest | Village | Cook | 11,680 | 11,635 |
| River Grove | Village | Cook | 9,951 | 10,668 |
| Riverdale | Village | Cook | 13,498 | 15,055 |
| Riverside | Village | Cook | 8,802 | 8,895 |
| Riverton | Village | Sangamon | 2,735 | 3,048 |
| Riverwoods | Village | Lake | 3,098 | 3,843 |
| Roanoke | Village | Woodford | 1,910 | 1,994 |
| Robbins | Village | Cook | 7,535 | 6,635 |
| Roberts | Village | Ford | 400 | 387 |
| Robinson | City | Crawford | 7,040 | 6,822 |
| Rochelle | City | Ogle | 8,777 | 9,424 |
| Rochester | Village | Sangamon | 2,778 | 2,893 |
| Rock City | Village | Stephenson | 282 | 313 |
| Rock Falls | City | Whiteside | 9,678 | 9,580 |
| Rock Island | City | Rock Island | 40,537 | 39,684 |
| Rock Island Arsenal | Census-Designated Place | Rock Island | ... | 145 |
| Rockbridge | Village | Greene | 180 | 189 |
| Rockdale | Village | Will | 1,709 | 1,888 |
| Rockford | City | Winnebago | 143,942 | 150,115 |
| Rockton | Village | Winnebago | 3,010 | 5,296 |
| Rockwood | Village | Randolph | 46 | 41 |
| Rolling Meadows | City | Cook | 22,757 | 24,604 |
| Rome | Census-Designated Place | Peoria | ... | 1,776 |
| Romeoville | Village | Will | 14,451 | 21,153 |
| Roodhouse | City | Greene | 2,137 | 2,214 |
| Roscoe | Village | Winnebago | 2,220 | 6,244 |
| Rose Hill | Village | Jasper | 78 | 79 |
| Roselle | Village | 20,929 | 23,115 | |
| Rosemont | Village | Cook | 3,981 | 4,224 |
| Roseville | Village | Warren | 1,151 | 1,083 |
| Rosewood Heights | Census-Designated Place | Madison | ... | 4,262 |
| Rosiclare | City | Hardin | 1,378 | 1,213 |
| Rossville | Village | Vermilion | 1,337 | 1,217 |
| Round Lake | Village | Lake | 3,651 | 5,842 |
| Round Lake Beach | Village | Lake | 16,441 | 25,859 |
| Round Lake Heights | Village | Lake | 1,257 | 1,347 |
| Round Lake Park | Village | Lake | 4,124 | 6,038 |
| Roxana | Village | Madison | 1,658 | 1,547 |
| Royal | Village | Champaign | 223 | 279 |
| Royal Lakes | Village | Macoupin | 272 | 190 |
| Royalton | Village | Franklin | 1,186 | 1,130 |
| Ruma | Village | Randolph | 243 | 260 |
| Rushville | City | Schuyler | 3,266 | 3,212 |
| Russellville | Village | Lawrence | 133 | 119 |
| Rutland | Village | La Salle | 396 | 354 |
| Sadorus | Village | Champaign | 469 | 426 |
| Sailor Springs | Village | Clay | 136 | 128 |
| Salem | City | Marion | 7,669 | 7,909 |
| San Jose | Village | 666 | 696 | |
| Sandoval | Village | Marion | 1,649 | 1,434 |
| Sandwich | City | 5,633 | 6,509 | |
| Sauget | Village | St. Clair | 197 | 249 |
| Sauk Village | Village | 10,783 | 10,411 | |
| Saunemin | Village | Livingston | 402 | 456 |
| Savanna | City | Carroll | 3,866 | 3,542 |
| Savoy | Village | Champaign | 2,805 | 4,476 |
| Sawyerville | Village | Macoupin | 284 | 295 |
| Saybrook | Village | McLean | 774 | 764 |
| Scales Mound | Village | Jo Daviess | 388 | 401 |
| Schaumburg | Village | 68,678 | 75,386 | |
| Schiller Park | Village | Cook | 11,193 | 11,850 |
| Schram City | Village | Montgomery | 716 | 653 |
| Sciota | Village | McDonough | 68 | 58 |
| Scott AFB | Census-Designated Place | St. Clair | 7,245 | 2,707 |
| Scottville | Village | Macoupin | 165 | 140 |
| Seaton | Village | Mercer | 221 | 242 |
| Seatonville | Village | Bureau | 259 | 303 |
| Secor | Village | Woodford | 391 | 379 |
| Seneca | Village | 1,935 | 2,053 | |
| Sesser | City | Franklin | 2,096 | 2,128 |
| Shabbona | Village | DeKalb | 882 | 929 |
| Shannon | Village | Carroll | 951 | 854 |
| Shawneetown | City | Gallatin | 1,577 | 1,410 |
| Sheffield | Village | Bureau | 970 | 946 |
| Shelbyville | City | Shelby | 4,791 | 4,971 |
| Sheldon | Village | Iroquois | 1,088 | 1,232 |
| Sheridan | Village | La Salle | 1,812 | 2,411 |
| Sherman | Village | Sangamon | 2,027 | 2,871 |
| Sherrard | Village | Mercer | 703 | 694 |
| Shiloh | Village | St. Clair | 4,232 | 7,643 |
| Shipman | Town | Macoupin | 642 | 655 |
| Shorewood | Village | Will | 6,300 | 7,686 |
| Shumway | Village | Effingham | 241 | 217 |
| Sibley | Village | Ford | 356 | 329 |
| Sidell | Village | Vermilion | 584 | 626 |
| Sidney | Village | Champaign | 1,049 | 1,062 |
| Sigel | Town | Shelby | 344 | 386 |
| Silvis | City | Rock Island | 6,892 | 7,269 |
| Simpson | Village | Johnson | 82 | 54 |
| Sims | Village | Wayne | 338 | 273 |
| Skokie | Village | Cook | 59,431 | 63,348 |
| Sleepy Hollow | Village | Kane | 3,231 | 3,553 |
| Smithboro | Village | Bond | 201 | 200 |
| Smithfield | Village | Fulton | 277 | 214 |
| Smithton | Village | St. Clair | 1,696 | 2,248 |
| Somonauk | Village | 1,269 | 1,295 | |
| Sorento | Village | Bond | 596 | 601 |
| South Barrington | Village | Cook | 3,159 | 3,760 |
| South Beloit | City | Winnebago | 4,096 | 5,397 |
| South Chicago Heights | Village | Cook | 3,631 | 3,970 |
| South Elgin | Village | Kane | 7,599 | 16,100 |
| South Holland | Village | Cook | 22,073 | 22,147 |
| South Jacksonville | Village | Morgan | 3,371 | 3,475 |
| South Pekin | Village | Tazewell | 1,184 | 1,162 |
| South Roxana | Village | Madison | 1,954 | 1,888 |
| South Wilmington | Village | Grundy | 696 | 621 |
| Southern View | Village | Sangamon | 2,034 | 1,695 |
| Sparland | Village | Marshall | 414 | 504 |
| Sparta | City | Randolph | 4,902 | 4,486 |
| Spaulding | Village | Sangamon | 338 | 559 |
| Spillertown | Village | Williamson | 249 | 220 |
| Spring Bay | Village | Woodford | 435 | 436 |
| Spring Grove | Village | McHenry | 1,195 | 3,880 |
| Spring Valley | City | Bureau | 5,235 | 5,398 |
| Springerton | Village | White | 164 | 134 |
| Springfield | City | Sangamon | 107,265 | 111,454 |
| St. Anne | Village | Kankakee | 1,143 | 1,212 |
| St. Augustine | Village | Knox | 157 | 152 |
| St. Charles | City | 23,019 | 27,896 | |
| St. David | Village | Fulton | 605 | 587 |
| St. Elmo | City | Fayette | 1,470 | 1,456 |
| St. Francisville | City | Lawrence | 851 | 759 |
| St. Jacob | Village | Madison | 797 | 801 |
| St. Johns | Village | Perry | 218 | 218 |
| St. Joseph | Village | Champaign | 2,051 | 2,912 |
| St. Libory | Village | St. Clair | 531 | 583 |
| St. Peter | Village | Fayette | 353 | 386 |
| Standard | Village | Putnam | 260 | 256 |
| Standard City | Village | Macoupin | 128 | 138 |
| Stanford | Village | McLean | 650 | 670 |
| Staunton | City | Macoupin | 4,836 | 5,030 |
| Ste. Marie | Village | Jasper | 281 | 261 |
| Steeleville | Village | Randolph | 2,075 | 2,077 |
| Steger | Village | 9,398 | 9,682 | |
| Sterling | City | Whiteside | 15,342 | 15,451 |
| Steward | Village | Lee | 277 | 271 |
| Stewardson | Village | Shelby | 660 | 747 |
| Stickney | Village | Cook | 5,678 | 6,148 |
| Stillman Valley | Village | Ogle | 850 | 1,048 |
| Stockton | Village | Jo Daviess | 1,904 | 1,926 |
| Stone Park | Village | Cook | 4,383 | 5,127 |
| Stonefort | Village | 359 | 292 | |
| Stonington | Village | Christian | 1,011 | 960 |
| Stoy | Village | Crawford | 135 | 119 |
| Strasburg | Village | Shelby | 473 | 603 |
| Strawn | Village | Livingston | 132 | 104 |
| Streamwood | Village | Cook | 31,461 | 36,407 |
| Streator | City | 14,669 | 14,190 | |
| Stronghurst | Village | Henderson | 799 | 896 |
| Sublette | Village | Lee | 397 | 456 |
| Sugar Grove | Village | Kane | 2,123 | 3,909 |
| Sullivan | City | Moultrie | 4,367 | 4,326 |
| Summerfield | Village | St. Clair | 508 | 472 |
| Summit | Village | Cook | 9,986 | 10,637 |
| Sumner | City | Lawrence | 1,095 | 1,022 |
| Sun River Terrace | Village | Kankakee | 487 | 383 |
| Swansea | Village | St. Clair | 8,918 | 10,579 |
| Sycamore | City | DeKalb | 10,005 | 12,020 |
| Symerton | Village | Will | 110 | 106 |
| Table Grove | Village | Fulton | 430 | 396 |
| Tallula | Village | Menard | 624 | 638 |
| Tamaroa | Village | Perry | 782 | 740 |
| Tamms | Village | Alexander | 728 | 724 |
| Tampico | Village | Whiteside | 835 | 772 |
| Taylor Springs | Village | Montgomery | 676 | 583 |
| Taylorville | City | Christian | 11,352 | 11,427 |
| Tennessee | Village | McDonough | 127 | 144 |
| Teutopolis | Village | Effingham | 1,585 | 1,559 |
| Thawville | Village | Iroquois | 241 | 258 |
| Thayer | Village | Sangamon | 730 | 750 |
| Thebes | Village | Alexander | 461 | 478 |
| Third Lake | Village | Lake | 1,233 | 1,355 |
| Thomasboro | Village | Champaign | 1,250 | 1,233 |
| Thompsonville | Village | Franklin | 602 | 571 |
| Thomson | Village | Carroll | 538 | 559 |
| Thornton | Village | Cook | 2,765 | 2,582 |
| Tilden | Village | Randolph | 919 | 922 |
| Tilton | Village | Vermilion | 2,780 | 2,976 |
| Timberlane | Village | Boone | 200 | 234 |
| Time | Village | Pike | 36 | 29 |
| Tinley Park | Village | 37,846 | 48,401 | |
| Tiskilwa | Village | Bureau | 838 | 787 |
| Toledo | Village | Cumberland | 1,197 | 1,166 |
| Tolono | Village | Champaign | 2,604 | 2,700 |
| Toluca | City | Marshall | 1,315 | 1,339 |
| Tonica | Village | La Salle | 717 | 685 |
| Topeka | Village | Mason | 93 | 90 |
| Toulon | City | Stark | 1,332 | 1,400 |
| Tovey | Village | Christian | 533 | 516 |
| Towanda | Village | McLean | 543 | 493 |
| Tower Hill | Village | Shelby | 601 | 609 |
| Tower Lakes | Village | Lake | 1,395 | 1,310 |
| Tremont | Village | Tazewell | 2,042 | 2,029 |
| Trenton | City | Clinton | 2,500 | 2,610 |
| Trout Valley | Village | McHenry | 595 | 599 |
| Troy | City | Madison | 6,488 | 8,524 |
| Troy Grove | Village | La Salle | 249 | 305 |
| Tuscola | City | Douglas | 4,165 | 4,448 |
| Ullin | Village | Pulaski | 402 | 779 |
| Union | Village | McHenry | 536 | 576 |
| Union Hill | Village | Kankakee | 74 | 66 |
| University Park | Village | 6,411 | 6,662 | |
| Urbana | City | Champaign | 37,182 | 36,395 |
| Ursa | Village | Adams | 511 | 595 |
| Valier | Village | Franklin | 708 | 662 |
| Valley City | Village | Pike | 23 | 14 |
| Valmeyer | Village | Monroe | 989 | 608 |
| Vandalia | City | Fayette | 6,336 | 6,975 |
| Varna | Village | Marshall | 407 | 436 |
| Venedy | Village | Washington | 158 | 137 |
| Venetian Village | Census-Designated Place | Lake | ... | 3,082 |
| Venice | City | Madison | 3,528 | 2,528 |
| Vergennes | Village | Jackson | 250 | 491 |
| Vermilion | Village | Edgar | 280 | 239 |
| Vermont | Village | Fulton | 806 | 792 |
| Vernon | Village | Marion | 207 | 178 |
| Vernon Hills | Village | Lake | 15,338 | 20,120 |
| Verona | Village | Grundy | 242 | 257 |
| Versailles | Village | Brown | 480 | 567 |
| Victoria | Village | Knox | 303 | 323 |
| Vienna | City | Johnson | 1,496 | 1,234 |
| Villa Grove | City | Douglas | 2,814 | 2,553 |
| Villa Park | Village | DuPage | 21,516 | 22,075 |
| Viola | Village | Mercer | 976 | 956 |
| Virden | City | 3,688 | 3,488 | |
| Virgil | Village | Kane | 283 | 266 |
| Virginia | City | Cass | 1,804 | 1,728 |
| Volo | Village | Lake | 181 | 180 |
| Wadsworth | Village | Lake | 2,420 | 3,083 |
| Waggoner | Village | Montgomery | 233 | 245 |
| Walnut | Village | Bureau | 1,476 | 1,461 |
| Walnut Hill | Village | Marion | 140 | 109 |
| Walshville | Village | Montgomery | 69 | 89 |
| Waltonville | Village | Jefferson | 398 | 422 |
| Wamac | City | 1,512 | 1,378 | |
| Wapella | Village | De Witt | 696 | 651 |
| Warren | Village | Jo Daviess | 1,577 | 1,496 |
| Warrensburg | Village | Macon | 1,273 | 1,289 |
| Warrenville | City | DuPage | 11,343 | 13,363 |
| Warsaw | City | Hancock | 1,883 | 1,793 |
| Washburn | Village | 1,075 | 1,147 | |
| Washington | City | Tazewell | 10,368 | 10,841 |
| Washington Park | Village | St. Clair | 7,428 | 5,345 |
| Wataga | Village | Knox | 879 | 857 |
| Waterloo | City | Monroe | 5,333 | 7,614 |
| Waterman | Village | DeKalb | 1,074 | 1,224 |
| Watseka | City | Iroquois | 5,474 | 5,670 |
| Watson | Village | Effingham | 644 | 729 |
| Wauconda | Village | Lake | 6,508 | 9,448 |
| Waukegan | City | Lake | 69,621 | 87,901 |
| Waverly | City | Morgan | 1,404 | 1,346 |
| Wayne | Village | 1,605 | 2,137 | |
| Wayne City | Village | Wayne | 1,118 | 1,089 |
| Waynesville | Village | De Witt | 521 | 452 |
| Weldon | Village | De Witt | 407 | 440 |
| Wellington | Village | Iroquois | 294 | 264 |
| Wenona | City | Marshall | 965 | 1,065 |
| Wenonah | Village | Montgomery | 27 | 44 |
| West Brooklyn | Village | Lee | 160 | 174 |
| West Chicago | City | DuPage | 14,990 | 23,469 |
| West City | Village | Franklin | 736 | 716 |
| West Dundee | Village | Kane | 3,796 | 5,428 |
| West Frankfort | City | Franklin | 8,597 | 8,196 |
| West Peoria | City | Peoria | 5,364 | 4,762 |
| West Point | Village | Hancock | 214 | 195 |
| West Salem | Village | Edwards | 1,042 | 1,001 |
| Westchester | Village | Cook | 17,301 | 16,824 |
| Western Springs | Village | Cook | 11,960 | 12,493 |
| Westfield | Village | Clark | 677 | 678 |
| Westmont | Village | DuPage | 22,121 | 24,554 |
| Westville | Village | Vermilion | 3,326 | 3,175 |
| Wheaton | City | DuPage | 52,057 | 55,416 |
| Wheeler | Village | Jasper | 155 | 119 |
| Wheeling | Village | 29,477 | 34,496 | |
| White City | Village | Macoupin | 222 | 221 |
| White Hall | City | Greene | 2,832 | 2,629 |
| Whiteash | Village | Williamson | 249 | 268 |
| Williamsfield | Village | Knox | 571 | 620 |
| Williamson | Village | Madison | 278 | 251 |
| Williamsville | Village | Sangamon | 1,108 | 1,439 |
| Willisville | Village | Perry | 577 | 694 |
| Willow Hill | Village | Jasper | 268 | 250 |
| Willow Springs | Village | Cook | 4,505 | 5,027 |
| Willowbrook | Village | DuPage | 9,181 | 8,967 |
| Willowbrook | Census-Designated Place | Will | 1,808 | 2,130 |
| Wilmette | Village | Cook | 26,829 | 27,651 |
| Wilmington | Village | Greene | 129 | 120 |
| Wilmington | City | Will | 4,738 | 5,134 |
| Wilsonville | Village | Macoupin | 614 | 604 |
| Winchester | City | Scott | 1,830 | 1,650 |
| Windsor | Village | Mercer | 774 | 720 |
| Windsor | City | Shelby | 1,142 | 1,125 |
| Winfield | Village | DuPage | 7,107 | 8,718 |
| Winnebago | Village | Winnebago | 1,899 | 2,958 |
| Winnetka | Village | Cook | 12,034 | 12,419 |
| Winslow | Village | Stephenson | 319 | 345 |
| Winthrop Harbor | Village | Lake | 6,300 | 6,670 |
| Witt | City | Montgomery | 989 | 991 |
| Wonder Lake | Census-Designated Place | McHenry | ... | 7,463 |
| Wonder Lake | Village | McHenry | 1,023 | 1,345 |
| Wood Dale | City | DuPage | 12,778 | 13,535 |
| Wood River | City | Madison | 11,510 | 11,296 |
| Woodhull | Village | Henry | 808 | 809 |
| Woodland | Village | Iroquois | 313 | 319 |
| Woodlawn | Village | Jefferson | 582 | 630 |
| Woodridge | Village | 26,590 | 30,934 | |
| Woodson | Village | Morgan | 478 | 559 |
| Woodstock | City | McHenry | 14,689 | 20,151 |
| Worden | Village | Madison | 903 | 905 |
| Worth | Village | Cook | 11,218 | 11,047 |
| Wyanet | Village | Bureau | 1,017 | 1,028 |
| Wyoming | City | Stark | 1,482 | 1,424 |
| Xenia | Village | Clay | 424 | 407 |
| Yale | Village | Jasper | 110 | 97 |
| Yates City | Village | Knox | 760 | 725 |
| Yorkville | City | Kendall | 4,055 | 6,189 |
| Zeigler | City | Franklin | 1,748 | 1,669 |
| Zion | City | Lake | 19,849 | 22,866 |
Change: (C 2000-04-01) in comparison to (C 1990-04-01).
Source: US Census Bureau (web).
2008-02-26HTTP://WWW.CITYPOPULATION.DE© TH. BRINKHOFF