403 N. Main St.
O'Fallon, MO 63366-2205
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Assumption (O'Fallon)

The words of our mission, “May you find Christ here…May you bring Christ to the world,” are literally written in stone; built into the front side of the new church building. To hold ourselves accountable to this mission, to ensure this is a place of unconditional welcome, and to fill our parish with love, we commit ourselves to these 8 statements: • I will help create an environment where all are welcome • I will respect the wisdom of long-time parishioners and welcome the gifts of the new • I will bring my concerns to the correct person and in a respectful way • I will encourage people to be their best but I will not expect perfection from them • I will participate at Sunday Mass each week and pray regularly • If I hurt anyone, I will apologize, and if I am hurt will offer forgiveness • I will contribute my time, talent, and treasure for the good of others • I will treat each person as I would treat Jesus
Founded: 1871
Deanery: St. Charles Deanery
Contacts
Reverend Mitchell Doyen - Pastor
Reverend Monsignor William McCumber - Senior Associate Pastor
Reverend Alexander Nord - Associate Pastor
Deacon Fred Volansky - Permanent Deacon
Deacon Gerald R. Hurlbert - Permanent Deacon

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Mass Times
  • Sunday
    • 8:00 am / 10:00 am / 12:00 pm / 5:30 pm
  • Saturday
    • 9:00 am
  • Saturday (Vigil)
    • 5:00 pm
  • Monday
    • 6:30 am / 8:00 am
  • Tuesday
    • 6:30 am / 8:00 am
  • Wednesday
    • 6:30 am / 8:00 am
  • Thursday
    • 6:30 am / 8:00 am
  • Friday
    • 6:30 am / 8:00 am
  • Holy Days
    • 6:30 am / 8:00 am / 7:00 pm
  • Holy Days (Vigil)
    • 5:00 pm
Reconciliation Times
  • Saturday
    • 4:00 pm - 4:45 pm
  • Monday
    • 7:30 am - 8:00 am
  • Tuesday
    • 7:30 am - 8:00 am
  • Wednesday
    • 7:30 am - 8:00 am
  • Thursday
    • 6:00 pm - 7:00 pm / 7:30 am - 8:00 am
  • Friday
    • 7:30 am - 8:00 am
Eucharistic Adoration Times
  • Tuesday
    • 8:30 am - 6:30 pm