Our beautiful parish has a 155 year history here in O’Fallon! I invite you to join us, as a visitor or as a member of our loving parish family, as we continue that history of striving to follow Christ. I hope this website can answer your immediate questions, but you are always welcome to contact us personally, or better yet, to stop in for a visit to find Christ here... and bring Christ to the world.
Peace, Fr. Nick
Saturday Vigil: 5pm Sunday: 8am, 10am, 12-Noon, 5:30pm Monday-Friday: 6:30am, 8am & Saturday: 8am
Holy Day’s Vigil for Feast: 5:30pm Feast Day: 6:30am, 8am and 7pm
As we celebrate 250 years of American history this holiday weekend, please keep these things in mind when heading up to Assumption on July 3 and 4. Parish Offi...
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If your child is in grades 1-8, it's not too early to start thinking about registering them for Parish School of Religion (PSR) classes for the upcoming school year. ...
Join us for a fun and relaxed Young Adult Mini Golf Social on Friday, July 10 at 6:30 PM at Pheasant Run Golf Headquarters, 3465 Highway K, O'...
To commemorate the St. Louis Archdiocese Bicentennial Jubilee, Assumption is starting to fulfill Archbishop Rozanski's request to consider how we can make more eviden...
Get Ready for the Ultimate Fall Fun at the Assumption Annual Fall Festival! Mark your calendars for the most thrilling weekend of the year! The Assumption Fall F...
On April 18, with grateful hearts, we will launch the Annual Catholic Appeal in our parish. The Appeal is one of the most impactful ways to serve others throughout t...