Our beautiful parish has a 150 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
Assumption is hosting its annual Quilts of Valor—Eastern Missouri event, Tuesday, June 24, and we need your assistance! Quilters from 10 surrounding count...
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Starting Tuesday, May 27, after summer officially begins, our 6:30AM and 8AM weekday Masses, and 8AM Saturday Mass, will be held in the Chapel until Labor Day. ...
Registration for the Men's Group 25th Annual Golf Tournament is now open and sponsorships are avaialble! Learn more details and register online.
Save the date now and be sure to join us for our Parish Appreciation Dinner Dance in the Parish Center on Saturday, June 28. Doors open at 6PM, following Saturday Vigil M...
The Assumption Quilters are hosting a Quilt-of-the-Month raffle beginning August 2025 thru July 2026. All proceeds for this raffle will go to restoring Assumption’s...