A Greeting From Mayor Herb Roach

Build It Here

O'Fallon, Illinois

Looking For Your Next Great Decision? Look no further. 

Located along Interstate 64 in Southern Illinois, O’Fallon is a key part of the St. Louis Metro East. Home to national retailers and local businesses alike, it’s among the fastest-growing cities in the region – and ranked as one of the best places to live by several national publications.

Whether you’re looking to build your business or build your life, O’Fallon is the perfect place to make it happen.


While you are here, Check out what O’Fallon has to offer!

Have questions?
The best way to get started is to reach our City Development Office.