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
December 8th is the Feast of the Immaculate Conception and a holy day of obligation. The Immaculate Conception means that the Blessed Virgin Mary, whose conception was...
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Dear Assumption Parish Family, As we are in the season of gratitude and giving, Assumption is excited about our iGiveCatholic celebration. It's a special opportuni...
Attention Men of the Parish! Want to change your life forever? Now you can when register for the upcoming Men’s RENEWAL Retreat Weekend (formerly CRHP) plan...
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...
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...
We now have an Assumption Chapel Endowment Fund! Just like our houses, God’s house also needs work to keep it maintained and looking nice. Here are a few t...