Census Takers Canvassing O’Fallon Beginning On August 11, 2020 »

O’Fallon, Illinois As part of the 2020 US Census, census takers will be visiting...

Special Needs Information Program »

O’Fallon, Illinois The O’Fallon Public Safety Department has created a new...

City Hall Reopening to Walk In Traffic on July 6, 2020 »

O’Fallon, Illinois On Monday, July 6, 2020, City Hall will reopen (Monday-Friday, 8...

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!