O'Fallon's biggest party of the year is July 2–4 at Ozzie Smith Sports Complex, with free concerts by nationally-renowned musicians, a carnival and midway, sideshows, a parade and two nights of spectacular fireworks! Check it out!

O'Fallon is a 2018 official host of the worldwide event on Thursday, June 21

Drowning continues to be a leading cause of death for young children. To bring awareness to the issue, hundreds of pools around the world will join in creating the world's largest swimming lesson on June 21st. The event is free, but you are asked to pre-register.

RSC – 12–12:30 p.m. REGISTER NOW
Alligator's Creek – 5–5:30 p.m. REGISTER NOW

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!

O'Fallon's first park south of I-64,
O'Day Park is nature-focused with
an activity & conference center,
adventure playground and more.

Westhoff Plaza Skate & BMX Complex in Westhoff Park
Darius Heald Home

Upcoming Events

6:30 PM - 9:00 PM
O'Fallon Jammin' Concerts
4:00 PM - 10:00 PM
Heritage & Freedom Fest
4:00 PM - 11:00 PM
Heritage & Freedom Fest
View Full Calendar

Cultural Arts

Take an art class, watch
local theatre, see new exhibits or hear a band concert. »»


Sign up to play or coach recreational or competitive team sports. Print schedules, rules and standings. »»

River City Rascals

Enjoy America’s favorite pastime in O’Fallon’s family-friendly baseball stadium. »»