Cathedral of Saint Peter
Belleville, Illinois
Last updated September 2026
1,000-5,000
estimated members
This is likely one of 26 Catholic congregations in St. Clair County, IL. Catholic accounts for 29% of the county's 313 congregations.
This estimate comes from ARDA 2020 data for churches of this size and denomination in the county.
Nearby churches in Belleville
Catholic Diocese of Belleville
256 ftCatholic
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Living Hope Church
0.2 miNon-Denominational
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Greater Grace
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Calvary Chapel of St. Clair County
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Conqueror's Christian Center Inc
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Blessed Believers Cogic
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