Memorial Day – May 27, 2024 »
O’Fallon, Illinois – In observance of Memorial Day, City Hall will be closed on...
City Accepting Resumes for Vacant Ward 5 City Council Seat »
O’Fallon, Illinois – The City of O’Fallon is now accepting resumes from residents of...
City Hall Extended Operation Hours »
O’Fallon, Illinois – Beginning on April 1, 2024, City Hall will be expanding...
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!