Blessed Trintiy Academy is supported by 6 parishes in the Allison Park/Glenshaw grouping and the Etna/Millvale/Glenshsaw grouping. The following parishes support BTA:
(For parish websites and mass schedules, please click on the parishes)
Allison Park/ Glenshaw- Our Lady of Perpetual Help Parish
St. Mary of the Assumption Church- Glenshaw
2510 Middle Road
Glenshaw, PA 15116
St. Ursula Church- Allison Park
3937 Kirk Avenue
Allison Park, PA 15101
Etna/Glenshaw/Millvale- St. Matthews Parish
St. Bonaventure Church- Glenshaw
2001 Mount Royal Blvd
Glenshaw, PA 15116
All Saints Church- Etna
19 Wilson Street
Pittsburgh, PA 15223
Holy Spirit Church- Millvale
608 Farragut Street
Pittsburgh, PA 15209
St. Aloysius- Reserve
3616 Mt. Troy Road
Reserve Township, PA 15212