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.
There are 33 city/town in Illinois, . The largest city of Illinois is Rockford with a population of 144,835. Other cities include, Romeoville population 39,770, Rock Island population 36,870, Round Lake Beach population 26,919, Rolling Meadows population 23,246
Rockford
Rockford, The second most populous city in Illinois.
Romeoville
Romeoville, Town
Rock Island
Rock Island, City in 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 | County | Population |
|---|---|---|
| Rockford | Winnebago | 144,835 |
| Romeoville | Will | 39,770 |
| Rock Island | Rock Island | 36,870 |
| Round Lake Beach | Lake | 26,919 |
| Rolling Meadows | Cook | 23,246 |
| Roselle | DuPage | 22,550 |
| Round Lake | Lake | 17,982 |
| Richton Park | Cook | 13,138 |
| Riverdale | Cook | 12,912 |
| Rantoul | Champaign | 12,305 |
| River Forest | Cook | 10,694 |
| Roscoe | Winnebago | 10,406 |
| River Grove | Cook | 9,771 |
| Rochelle | Ogle | 8,975 |
| Rock Falls | Whiteside | 8,648 |
| Riverside | Cook | 8,455 |
| Rockton | Winnebago | 7,477 |
| Robinson | Crawford | 7,271 |
| Robbins | Cook | 5,401 |
| Rosemont | Saint Clair | 4,147 |
| Rochester | Sangamon | 3,715 |
| Riverwoods | Lake | 3,534 |
| Red Bud | Randolph | 3,442 |
| Riverton | Sangamon | 3,430 |
| Rushville | Schuyler | 2,822 |
| Round Lake Heights | Lake | 2,630 |
| Roanoke | Woodford | 1,966 |
| Richmond | McHenry | 1,896 |
| Rockdale | Will | 1,884 |
| Reading | Livingston | 1,860 |
| Roodhouse | Greene | 1,646 |
| Royalton | Franklin | 1,110 |
| Rosiclare | Hardin | 1,008 |