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

5:00 PM - 8:00 PM
Municipal Court
1:00 PM - 2:00 PM
Senior Citizens Police Academy
View Full Calendar
SWIFT 9-1-1 EMERGENCY NOTIFICATIONS – Get texts, emails or phone calls about emergencies, notifications and weather-related events at your specific location. The service is free to all O'Fallon residents. Verify or add your information to the Swift 9-1-1 notification system now!

Utility Services

  • Register for service(s) »»
  • Pay bills and fines »»
  • Register for e-Billing »»
Water/Sewer emergency?
Call 636-281-2858

Business Map
& Directory

Search, sort and locate
more than 1,600 O'Fallon businesses. »»

Citizens First Center

Make a request, report
a street light outage
or road repair, ask us
a question. »»

Environmental Services

Learn the latest on trash, recycling and yard waste pickup, bulk waste drop-off and holiday schedules. »»

Be Prepared for Spring Floods!

See if you are located in a floodplain area. »»
Or, learn more about Floodplain Management. »»

Permits and Code Enforcement

  • Apply for a permit »»
  • Renew a license »»
  • Submit a complaint »»

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

Watch City Meetings

Watch on YouTube

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

Water main replacements slated to begin in O’Fallon’s Forest Park Subdivision

Construction is set to begin Monday, July 2, on a long-range project to replace aged water mains throughout Forest Park Subdivision in O’Fallon with new, modern water mains. For the project, the City divided the work into five one-year increments with the goal of replacing the aged water main infrastructure at a rate of one mile of water main per project year.

As the work progresses, residents and property owners will be notified when crews will need to restrict access to driveways, sidewalks and roadways so that water main pipes can be installed. Residents and property-owners also will be notified of any brief service interruptions to allow service line transfers to take place.

The first year of the project calls for the replacement of the lines on St. Margaret Lane south of St. Joseph Avenue, St. Mathew Avenue south of St. Joseph Avenue, St. Joseph Avenue between St. Margaret and St. Mathew, Eggering Drive and Ronnie Drive south of Eggering.

For more information and a tentative list of future project, please visit O’Fallon’s website at