Our beautiful parish has a 154 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
Save the date and be sure to support our iGiveCatholic fundraising efforts. This year, Giving Tuesday is Dec. 2, 2025 and Advanced Giving begins on Monday, Nov. 17. CLICK...
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Assumption Parish and SVdP Come Together to Help Those in Need Join us in answering the Archbishop’s urgent c...
The Assumption Men's Group will be once again serving up pancakes, sausage links, orange juice, and chocolate and white milk after 8AM and 10AM Masses, Sunday, Nov. 2...
Attention men of Assumption Parish! Are you looking to deepen your relationship with God? Be a better husband? Become a more loving father? Build friendships with other l...
Win a Quilt-of-the-Month! The Assumption Quilters are hosting a quilt raffle with 12 different drawings beginning August 2025 thru July 2026. All proceeds for the Qu...