Blessed Trinity Parish - St. Sylvester Roman Catholic Church
Pittsburgh, Pennsylvania
Last updated September 2026
1,000-5,000
estimated members
This is likely one of 176 Catholic congregations in Allegheny County, PA. Catholic accounts for 16% of the county's 1,131 congregations.
This estimate comes from ARDA 2020 data for churches of this size and denomination in the county.
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