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Largest Cities in Illinois by Population

Illinois, Located in the Midwest, it is home to Chicago, the third-largest city in the US. The state is a major transportation hub and an agricultural leader, known for its vast corn and soybean fields. It also plays a significant role in manufacturing and finance.. As of 2020 state had an estimated population of 12,587,530 inhabitants. The state was created 207 years ago in 1818. Its capital city is Springfield.

Indian Head Park
Indian Head Park

Indian Head Park, Village in United States of America

Byron
Byron

Byron, City in Ogle County, Illinois, United States

Metamora
Metamora

Metamora, Village in Woodford County, Illinois

From the busy streets of Chicago to the river towns dotting its southern border, Illinois offers a variety of urban attractions and rural charm within its 57,000 square miles. Home to over 12.7 million residents, notable destinations in Illinois include:

Chicago - The largest city in the Midwest, Chicago dazzles with world-class museums like the Art Institute of Chicago, iconic sports teams and venues, deep dish pizza, and stunning lakefront skyline views.

Springfield - Illinois’ capital city, Springfield provides history buffs with Abraham Lincoln sites like his Home and Tomb along with expansive state government buildings.

Galena - Nestled near the Mississippi River, Galena is a beautifully preserved 19th century town with scenic vistas. Its Victorian-era downtown offers shopping, tours, and winery tastings.

Nauvoo - Founded by Mormons in the 1840s, Nauvoo retains its fascinating religious history. Historic homes and buildings like the rebuilt Nauvoo Temple transport visitors back in time.

Champaign-Urbana - Home to the University of Illinois, this twin college town offers innovative dining, cultural events, sports, and entertainment catering to students.

From the big city lights of Chicago to historic small towns, Illinois offers the best of Midwestern metropolitan areas alongside rural escape. Its rivers, lakes, and prairies provide scenic backdrops to favorite destinations.

All Illinois Cities (Aphebetical)

List of cities, towns, neighborhoods & other populated places in Illinois.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z all
City Name County Population
Indian Head Park Cook 3,680
Byron Ogle 3,650
Metamora Woodford 3,648
Wadsworth Lake 3,631
Fairbury Livingston 3,596
Hainesville Lake 3,551
Riverwoods Lake 3,534
Oglesby LaSalle 3,526
Dixmoor Cook 3,518
Long Lake Lake 3,515
Le Roy McLean 3,498
Forsyth Macon 3,465
Oregon Ogle 3,449
Red Bud Randolph 3,442
Riverton Sangamon 3,430
Germantown Hills Woodford 3,390
Johnston City Williamson 3,389
Aledo Mercer 3,383
Tolono Champaign 3,349
Virden Macoupin 3,302
Fulton Whiteside 3,285
Sleepy Hollow Williamson 3,215
Spring Garden Jefferson 3,208
New Baden Clinton 3,205
East Dundee Kane 3,186
Galena Jo Daviess 3,151
Carlyle Clinton 3,148
Georgetown Vermilion 3,145
South Jacksonville Morgan 3,075
Momence Kankakee 3,049
Gillespie Macoupin 3,048
Abingdon Knox 3,008
Nashville Washington 2,984
Winnebago Winnebago 2,973
Sumner Lawrence 2,961
Havana Mason 2,945
North Barrington Lake 2,938
Westville Vermilion 2,913
Heyworth McLean 2,869
Cherry Valley Winnebago 2,853
Amboy Lee 2,841
Arcola Douglas 2,838
Bushnell McDonough 2,825
Rushville Schuyler 2,822
Mount Morris Ogle 2,776
McLeansboro Hamilton 2,730
El Paso Woodford 2,700
Knox Knox 2,692
Knoxville Knox 2,692
Christopher Franklin 2,686
Lena Stephenson 2,680
Tilton Vermilion 2,655
Ford Heights Cook 2,647
Round Lake Heights Lake 2,630
Marquette Heights Tazewell 2,617
Casey Clark 2,585
Trenton Clinton 2,566
Sheridan LaSalle 2,515
Mount Sterling Brown 2,495
Diamond Grundy 2,484
Galva Henry 2,449
Wayne DuPage 2,446
Otto Kankakee 2,445
Kenilworth Cook 2,442
Fairmont City Saint Clair 2,439
Mackinaw Tazewell 2,430
Carthage Hancock 2,419
Villa Grove Douglas 2,414
Thornton Cook 2,367
Carrollton Greene 2,352
Altamont Effingham 2,350
Davis Junction Ogle 2,344
Ina Jefferson 2,279
White Hall Greene 2,269
Henry Marshall 2,230
Petersburg Saint Clair 2,207
Elwood Will 2,207
Arthur Douglas 2,192
Farmington Fulton 2,181
Seneca LaSalle 2,179
Polo Ogle 2,158
Aviston Clinton 2,156
Wesley Tazewell 2,130
Tremont Tazewell 2,114
Harlem Winnebago 2,114
Oakbrook Terrace DuPage 2,094
Mason City Mason 2,088
Nokomis Montgomery 2,077
Cambridge Henry 2,051
Lake Summerset Winnebago 2,048
Hinckley DeKalb 2,042
Bellevue Peoria 2,037
Lexington McLean 2,020
Oakwood Hills McHenry 2,011
Elmwood Peoria 1,995
Cairo Alexander 1,989
Utica LaSalle 1,988
South Roxana Madison 1,986
Girard Macoupin 1,981
Brighton Macoupin 1,967
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County Cities on Map (100)