O’Fallon, IL Banking Center

First National Bank of Waterloo has been a lending leader in southern Illinois communities since 1912. Our team of banking experts helps businesses flourish and residents’ dreams come true through our many lending solutions.

As a community bank, that’s our goal, and our customer-focused approach has set a standard for banking in the area. Our banking centers in O’Fallon bring another customer-focused banking option to St. Clair County.

Our banking center in O’Fallon is located at 1177 N Green Mount Road. It is conveniently located and provides all the services you’d expect from a community bank.

Visit us in person to experience firsthand what a hometown bank is all about. Or call us at 618-632-1010. We can help with any of your banking needs!


1177 N Green Mount Rd
O’Fallon, IL 62269
PO Box 670 O’Fallon, IL 62269



8:30am-4:30pm – Monday to Thursday
8:30am-6:00pm – Friday
8:30am-Noon – Saturday


7:30am-5:00pm – Monday to Wednesday
7:30am-5:30pm – Thursday
7:30am-6:00pm – Friday
7:30am-Noon – Saturday

Meet Our Commercial Lender!

Kevin Welch

5-Star Rated by BauerFinancial, Inc.


Encouraging Words from Our Patrons


“Overall, I find First National Bank of Waterloo to be the best bank that I have ever used in my life!” – Janet P.

“What I like the most about First National Bank of Waterloo is that they are a good home town bank.” – Jen W.

“We moved out of the state but still left our account at First National Bank of Waterloo due to the customer service.” – Herman W.

“They spotted charges on my account that I didn’t know were happening or how it happened. They stopped it and saved me a lot of money.” – Brett G.

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