We are a diverse, charming community of hardworking residents, including personnel from nearby Scott Air Force Base.  Over 29,000 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.