Cities & Towns in LaSalle County, IL
LaSalle County, county in Illinois, United States. As of 2020 county had an estimated population of 107,571 inhabitants. The county was created 193 years ago in 1831. Its county seat is Ottawa.
There are 31 city/town in LaSalle County, IL. The largest city of LaSalle County is Ottawa with a population of 18,097. Other cities include, Streator population 12,933, Peru population 9,612, La Salle population 9,609, Mendota population 6,904
Ottawa
Ottawa, City in Illinois, United States
Streator
Streator, City in Illinois
Peru
Peru, City in Illinois, United States
Surrounded by rural farmland and the Illinois River valley, LaSalle County in north-central Illinois offers visitors a glimpse into classic Midwest living. The city of Ottawa serves as the county seat, featuring historic architecture and riverfront views in its quaint downtown area. The industrial city of LaSalle sits right along the Illinois River and the Illinois & Michigan Canal.
Smaller farming towns like Earlville, Leland, and Mendota retain their agricultural roots and charm, with grain silos and farms dotting the countryside around their compact downtowns. The city of Streator boasts beautiful parks and buildings constructed of native bedrock and clay tile. Marseilles and Naplate both border the Illinois River and provide access to outdoor recreation.
Dotted with state and county parks and crisscrossed by hiking and biking trails, LaSalle County's mix of historic cities, industrial river towns, and rural farming communities offer the perfect glimpse into life in the Midwest. The area provides abundant opportunities to experience the region’s natural beauty, agricultural heritage, and architectural legacy along the Illinois River valley. Whether you’re looking for outdoor activities or small town charm, LaSalle County has something for you.
All LaSalle County Cities (Aphebetical)
List of cities, towns, neighborhoods & other populated places in LaSalle County.
| City Name | Title | Population |
|---|---|---|
| Cedar Point | Human settlement in Illinois, United States of America | 251 |
| Dana | Village in United States of America | 149 |
| Deer Park | Village in United States of America | 4,199 |
| Dimmick | Township in LaSalle County, Illinois | 697 |
| Earlville | City in Delaware County, Iowa, United States of America | 1,570 |
| Farm Ridge | Township in LaSalle County, Illinois | 858 |
| Garfield | Human settlement in Illinois, United States of America | 1,483 |
| Grand Ridge | Human settlement in Illinois, United States of America | 519 |
| Kangley | Human settlement in Illinois, United States of America | 229 |
| La Salle | City in LaSalle County, Illinois, United States | 9,609 |
| Leland | Village in Illinois, United States | 902 |
| Leonore | Village in LaSalle County, Illinois, United States | 121 |
| Lostant | Human settlement in Illinois, United States of America | 477 |
| Marseilles | City in LaSalle County, Illinois | 4,778 |
| Mendota | Township in LaSalle County, Illinois | 6,904 |
| Meriden | Township in LaSalle County, Illinois | 303 |
| Naplate | Human settlement in Illinois, United States of America | 465 |
| Northville | Township in LaSalle County, Illinois | 6,753 |
| Oglesby | City in LaSalle Co. | 3,526 |
| Ottawa | City in Illinois, United States | 18,097 |
| Peru | City in Illinois, United States | 9,612 |
| Ransom | Human settlement in United States of America | 350 |
| Rutland | Human settlement in Illinois, United States of America | 303 |
| Seneca | Village in Illinois | 2,179 |
| Serena | Human settlement in Illinois, United States of America | 1,088 |
| Sheridan | Village in Illinois, United States | 2,515 |
| Streator | City in Illinois | 12,933 |
| Tonica | Village in Illinois, USA | 705 |
| Troy Grove | Township in LaSalle County, Illinois | 236 |
| Utica | Village also known as Utica, in LaSalle County, Illinois | 1,988 |
| Waltham | Human settlement in LaSalle County, Illinois, United States of America | 393 |
