St. Thomas the Apostle Parish - Holy Trinity Church

Pittsburgh, Pennsylvania

Address

529 Grant Ave Ext

Denomination

Catholic

Last updated May 2026

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1,000-5,000

estimated members

This is likely one of 176 Catholic congregations in Allegheny County, PA. Catholic accounts for 60% 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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