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
/portals/assumption/CMAdmin/Urgent Food Drive Support Archbishop Letter.pdf
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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...
A great big thank you to all our volunteers and festival-goers who helped to make the two-day Assumption Fall Festival a huge success… the weather was perfect, our...
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...