O’Fallon, Illinois is the fastest-growing city in the St. Louis Metro East — and we’re just getting started. Our goal is to continue attracting and retaining high quality businesses. And as a business owner, you’ll see that vision in action every day.

In O’Fallon, the entire community stands with you.


Three Municipalities; One Thriving Business Community

Sitting five miles from Scott Air Force Base and 18 miles from downtown St. Louis, O’Fallon, Illinois boasts a solid foundation for continued growth and prosperity. What makes us one of the best places to start a business in Illinois?

Our region is comprised of three municipalities, which adds up to a retail destination market of around 300,000 people. With an average household income of $100,000 annually, consumers in this area are easy to attract.

300K People

Retail destination market

$3 Billion

Total market Spending power

$115,500 Annually

Average O'Fallon household income


Total Population

O'Fallon, IL - 2020

In addition to our accessibility, growth and prosperity, O’Fallon’s predictable, business-friendly permit and registration process results in consistent, high-quality development. The cost of starting a business in Illinois is low, and O’Fallon ensures proactive code enforcement that makes our city a clean, safe and attractive place to start a business — and grow it.

Key Industries and Employers


St. Elizabeth’s


Scott Air
Force Base


Sam’s Club


O’Fallon Sports Park,
Gateways Classic Cars, McKendree Metro Rec Plex,
Vine Street Market


Rock Springs Rotary Park, Bike Trails

Build Your Business

Our business owners know that O’Fallon is a special place — a growing city where opportunity begins.

Contact Us

A Commercial Corridor and a Revitalized Downtown

In O’Fallon, we have the best of both worlds: a well-established commercial area of the city and a lively downtown district that’s the heart of our community. Each has its own pulse, and each brings plenty of consumers our way.

With easy interstate access, a central midwestern location and MidAmerica Airport just outside the city, O’Fallon is ideally situated to attract businesses of all sizes, in any industry. Our key statistics give you plenty of reasons to build or expand your business here.