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
Join us for our annual CHRISTMAS CHORAL CONCERT, SUNDAY, DECEMBER 14 at 3PM The Choral Arts Singers invite you to join us for our 53rd year of musical performance...
Read more ...
As we reflect on the conclusion of our iGiveCatholic 2025 fundraiser, let us take a moment to celebrate the blessings and the spirit of generosity that surrounded this ef...
O Come Let Us Adore Him! Let your heart be uplifted and your spirit renewed at Assumption this Christmas season! Join the Assumption choirs, cantors, and musicians as ...
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...