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Mass Schedule


6:30am(MH), 8:00am


9:00 am(MH), Vigil Mass 5:00pm


8:00am, 10:00am, 12:00pm-Noon

Parochial Administrator
Rev. Mitch Doyen


Position Opening-Lay Pastoral Associate
Job Opportunity – Lay Pastoral Associate Assumption Parish in O’Fallon, Missouri, seeks a full-time Lay Pastoral Associate to minister to and with a vibrant, suburban parish community o... Read More
Palm Sunday Egg Hunt!
Children 12 and under grab your Easter Basket and head to the soccer fields to help the Easter Bunny search for his missing eggs. The hunt will start 15 minutes after each Mass this Sunday, Ma... Read More
Derby Day-Online Auction OPEN
DERBY DAY at ACC DOWNS! Our May 2nd Dinner Auction is already underway with special online pre-bidding! VIEW or BID on AUCTION ITEMS   New items will be added in the weeks leading... Read More
Prayers for RCIA Members
On Feb. 21 and 22, we received prayer cards for the members of our RCIA program. Please keep them and their catechists in prayer, in these final weeks before their full initiation in to the Churc... Read More


Final Evening Lenten Mass

Tues., Mar. 31 at 7pm

CLICK for more Lenten Faith Opportunities

Sacrament of Reconciliation:

Saturdays, 4:00p-4:45p (church)
Saturday Mar.28, 6:15p-7:00p (church)

Learn more about the Archbishop's 
Pastoral Letter on Reconciliation

Join the 2016 Trip
to the Holy Land!

Want to walk the land where Jesus walked? See what the prophets saw? Taste the air that Mary & Joseph tasted on their way to Bethlehem?

CLICK HERE for the details about
a once in a life time opportunity!