State Street Closure 2023

State Street Lane Closure beginning Tuesday, May 30, 2023. »

O’Fallon, Illinois – The O’Fallon Public Works Department will be closing the State Street acceleration lane onto...

Hawthorne Closure 2023

Road Closure on Hawthorne Place at the Intersection of Highway 50 Beginning on Tuesday, May 30, 2023 »

O’Fallon, Illinois Beginning Tuesday, May 30, 2023, Hawthorne Place at the...

O’Fallon’s Electrical Aggregation Rate - Important Update »

O’Fallon, Illinois The City of O’Fallon participates in the Municipal Electrical...

Welcome to the City of O'Fallon

We are a diverse, charming community of hardworking residents, including personnel from nearby Scott Air Force Base. Over 30,000 people call O'Fallon "home", and each one contributes a wonderful mix of small-town caring and community pride. O'Fallon's rich history of trade and industry, and its solid foundation for continued growth and prosperity make it one of the area's most popular communities in which to live and work. Today, O'Fallon is known as one of the fastest growing communities in the Metropolitan St. Louis area. Visit us and see what O'Fallon has to offer!