Saint Mary Catholic Church

Belleville, Illinois

Address

West Main Street

Denomination

Catholic

Phone

+1 618-233-2391

Last updated September 2026

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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.

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