It's America's Birthday in O'Fallon!
Discounted Carnival Tickets

O'Fallon's biggest party of the year is July 2–4, with free concerts and sideshows, a parade and two nights of spectacular fireworks!
Go to the event website.

Through June 30 (or while supplies last) purchase carnival tickets at 50% off at the RSC and Parks & Rec Office.

Project to address congested intersections and delays on I-70 through O’Fallon

Improvement are coming to the interchange at I-70 and Highway K/Main Street, with relief for congestion on K near I-70 and better traffic flow better from T.R. Hughes Blvd. through Woodlawn Ave. Phase 1 of this project will focus on the area from T.R. Hughes to Main St./Hwy. K. Construction continues through October 2019.

Springtime Fun!

O’Fallon's popular, family-friedly events are coming back! Enjoy warm evenings at one of our free activities.

Alligator's Creek Aquatic Center in Civic Park now open

O'Fallon's outdoor pool got a big facelift for 2018. Featuring a brand new bath house, longer lazy river, floating bridge, splashpad, new play structures and much more, the pool is open daily through August 12!


Upcoming Events

9:00 AM - 11:00 AM
Coffee with a Cop
5:00 PM - 8:00 PM
Municipal Court
View Full Calendar
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Citizens First Center

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Environmental Services

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Be Prepared for Spring Floods!

See if you are located in a floodplain area. »»
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Permits and Code Enforcement

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Prop U - What you Need to know

When you go to the polls on Tuesday, August 7, you will have the opportunity to vote on Proposition U, which would impose a Use Tax primarily on the purchase of goods by O’Fallon businesses from out-of-state vendors. The O'Fallon City Council annouced that the funds generated by Prop U would go to subdivision street repairs.

Learn more about Prop U here.

O'Fallon TV

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O'FallonTV is also available on Charter Spectrum TV Channel 991 and AT&T U-verse Channel 99.

Parts of Wabash Ave. closed for construction

Wabash Ave. will close for construction between Wabash Spur Drive and 300 feet West of Edlen Lane for approximately 10-12 weeks, weather dependent, starting Monday May 7, 2018.  During this closure, access to Wabash Avenue from Edlen Lane will also be closed. Access to Sonderen Street and E. Terra Lane will remain open for those residents entering and exiting the Country Life Subdivision. The closure is required to allow for replacement of the box culvert under Wabash Avenue at Edlen Lane, replacement of the water main, and reconstruction of the Wabash Avenue pavement in this area. Motorists are encouraged to avoid this area during the closure if at all possible. A detour route will be signed to aid motorists in navigating around the closure. Any questions or concerns about the closure should be directed to Ruth Field at 636-379-5407.