Cities & Towns in Saint Clair County, IL
Saint Clair County, The County of St. Clair is the oldest county in the U. S. Illinois state; the Mississippi River, bordering the U, forms its western boundary. S. Missouri State. In southern Illinois, it is part of the Metro East. It had a population of 270,056 according to the 2010 United States Census, making it the eighth-most populous county in Illinois and the most populous in the state's southern part. Its seat in the county is Belleville.. As of 2020 county had an estimated population of 258,046 inhabitants. The county was created 234 years ago in 1790. Its county seat is Belleville.
There are 1 city/town in Saint Clair County, IL. The largest city of Saint Clair County is O'Fallon with a population of 29,606.
O'Fallon
O'Fallon, Township in St.
Bordered by the Mississippi River to the west and rolling prairie farmlands to the east, St. Clair County, Illinois encapsulates both industrial power and small-town Midwest charm. Its unique cities provide glimpses into the region's storied past and promising future.
The historic riverfront town of Belleville serves as the county seat and bustles as a dining and shopping hub, fueled by Lindenwood University. Nearby towns like Freeburg retain their quaint downtown districts dotted with cafes and boutiques.
Further east, New Athens and Millstadt exude rural charm through entities like the Kaskaskia College Agricultural Center and celebrations of the region's German Catholic roots.
Revitalized river cities like Sauget showcase the area's manufacturing legacy through landmarks like the National City Steel Plant and celebrations of its multi-ethnic immigrant communities. From the rolling cornfields of its eastern border to the mighty Mississippi River, St. Clair County's diverse cities encapsulate the essence of life in southwestern Illinois.
All Saint Clair County Cities (Aphebetical)
List of cities, towns, neighborhoods & other populated places in Saint Clair County.
| City Name | Title | Population |
|---|---|---|
| O'Fallon | Township in St. | 29,606 |
