Cities & Towns in Illinois,
Illinois, state of the United States of America. As of 2020 state had an estimated population of 12,587,530 inhabitants. The state was created 206 years ago in 1818. Its capital city is Springfield.
There are 52 city/town in Illinois, . The largest city of Illinois is Orland Park with a population of 57,347. Other cities include, Oak Lawn population 54,376, Oak Park population 51,852, Oswego population 36,696, O'Fallon population 29,606
Orland Park
Orland Park, Village in Illinois
Oak Lawn
Oak Lawn, Village in Illinois, United States of America
Oak Park
Oak Park, Village in Cook County, Illinois, United States; suburb of Chicago, 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.
| City Name | Title | County | Population |
|---|---|---|---|
| Orland Park | Village in Illinois | Cook | 57,347 |
| Oak Lawn | Village in Illinois, United States of America | Cook | 54,376 |
| Oak Park | Village in Cook County, Illinois, United States; suburb of Chicago, Illinois | Cook | 51,852 |
| Oswego | City in and county seat of Oswego County, New York, United States | Kendall | 36,696 |
| O'Fallon | Township in St. | Saint Clair | 29,606 |
| Oak Forest | City in Cook County, Illinois | Cook | 26,884 |
| Ottawa | City in Illinois, United States | LaSalle | 18,097 |
| Olney | City in Richland County, Illinois, United States of America | Richland | 8,667 |
| Oak Brook | Village in DuPage County in Illinois | DuPage | 8,046 |
| Orland Hills | Village in United States of America | Cook | 6,943 |
| Olympia Fields | City in Illinois, United States of America | Cook | 4,747 |
| Oglesby | City in LaSalle Co. | LaSalle | 3,526 |
| Oregon | City in Ogle County, Illinois, United States | Ogle | 3,449 |
| Otto | Township in Kankakee County, Illinois | Kankakee | 2,445 |
| Oakbrook Terrace | City in DuPage County, Illinois | DuPage | 2,094 |
| Oakwood Hills | City in Illinois, United States of America | McHenry | 2,011 |
| Orion | Village in Henry County, Illinois, United States | Henry | 1,776 |
| Oakwood | Village in Oakwood Township, Vermilion County, Illinois, United States | Vermilion | 1,460 |
| Oblong | Village in the United States | Crawford | 1,357 |
| Okawville | Human settlement in United States of America | Washington | 1,349 |
| Onarga | Village in Iroquois County, Illinois, United States of America | Iroquois | 1,241 |
| Oquawka | Town in Henderson County, Illinois | Henderson | 1,231 |
| Oneco | Human settlement in Illinois, United States of America | Stephenson | 1,228 |
| Odin | Village in Illinois | Marion | 1,004 |
| Oakley | Township in Macon County, Illinois | Macon | 988 |
| Odell | Township in Livingston County, Illinois | Livingston | 957 |
| Osceola | Township in Stark County, Illinois | Stark | 885 |
| Ontario | Unincorporated community in Illinois | Knox | 871 |
| Olive Branch | City in Alexander County, Illinois, United States of America | Alexander | 864 |
| Oreana | Human settlement in Illinois, United States of America | Macon | 804 |
| Ogden | Village in Champaign County, Illinois, United States of America | Champaign | 787 |
| Orangeville | Human settlement in Illinois, United States of America | Stephenson | 737 |
| Oneida | City in Illinois, USA | Knox | 653 |
| Oak Grove | Village in Illinois, United States | Lake | 585 |
| Orange | Unincorporated community in Illinois, United States | Clark | 517 |
| Ohio | Village in Bureau County, Illinois, United States | Bureau | 475 |
| Omega | Township in Marion County, Illinois | Marion | 466 |
| Osco | Township in Henry County, Illinois | Henry | 437 |
| Orient | City in Franklin County, Illinois, United States | Franklin | 338 |
| Oskaloosa | Township in Clay County, Illinois | Clay | 308 |
| Olmsted | Settlement in Illinois, USA | Pulaski | 288 |
| Oakford | Human settlement in Illinois, United States of America | Menard | 273 |
| Owaneco | Human settlement in Illinois, United States of America | Christian | 223 |
| Oakdale | City in Washington County, Minnesota | Washington | 201 |
| Omaha | Village in Illinois, USA | Gallatin | 199 |
| Oconee | Township in Shelby County, Illinois | Shelby | 169 |
| Old Mill Creek | Human settlement in Illinois, United States of America | Lake | 165 |
| Old Shawneetown | Human settlement in Illinois, United States of America | Gallatin | 164 |
| Oakland | City in Coles County, Illinois, United States | Coles | 127 |
| Ohlman | Human settlement in United States of America | Montgomery | 124 |
| Otterville | Town of the United States | Jersey | 116 |
| Old Ripley | Township in Bond County, Illinois | Bond | 98 |
