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
The Advent Season begins Sunday, Nov. 30 through Dec. 24. It is a time of preparation that directs our hearts and minds to Christ’s second comin...
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Dear Assumption Parish Family, As we approach the season of gratitude and giving, we are excited to announce the start of our iGiveCatholic celebration on Monday,...
Women of the parish! Set aside the hustle and bustle of the holidays, and focus your minds and hearts on the birth of Christ, as we kick off the season of advent with our...
Held every Sunday at the 10 AM Mass from August through May, all children ages 3 years to second grade, who have not had their first communion, are invited to p...
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...