St.Mary Immaculate Conception Catholic church
Mount Vernon, Illinois
Address
1500 N Main StDenomination
CatholicPhone
+1 618-244-1559Services
Ministries
Confession
Sat4:00 PM - 4:30 PM
Prayer Meeting
Sun10:00 AM
Tue6:15 PM
Last updated May 2026
500-1,000
estimated members
This is likely one of 2 Catholic congregations in Jefferson County, IL. Catholic accounts for 8% of the county's 92 congregations.
This estimate comes from ARDA 2020 data for churches of this size and denomination in the county.
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