O’Fallon’s Electrical Aggregation Rate »

O’Fallon, Illinois - The City of O’Fallon will see their municipal (electricity) aggregation program...

Fireworks Over O’Fallon – July 3, 2021 »

O’Fallon, Illinois  The Third Annual Fireworks Over O’Fallon will be held on...

City Hall Closed on Monday, May 31 in Observance of Memorial Day »

O’Fallon, Illinois In observance of Memorial Day, City Hall will be closed on...

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!