West Madison Closure 2021

Phase One of The West Presidential Streets Rehabilitation Project Beginning on Monday, January 18, 2021 »

O’Fallon, Illinois The O’Fallon Public Works Department will begin Phase One of the...

City Hall Closed on Monday, January 18, 2021in Observance of MLK Day »

O’Fallon, Illinois In observance of Martin Luther King, Jr. Day, City Hall will be...

City of O'Fallon Launches New Online Permitting Portal  »

O’Fallon, Illinois The City of O’Fallon is excited to announce the launch of the...

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!