Across Ridge Avenue from St. Mary's are two other locally significant churches: Andorra Baptist Church, headquarters of the Philadelphia Baptist Association, one of the 33 American Baptist regions; and  Armenian Apostolic Church of St. Gregory the Illuminator, which serves the Armenian community of Andorra and the immediate surrounding area.
Across Ridge Avenue from St. Mary's are two other notable local churches: Andorra Baptist Church, main office for the Philadelphia Baptist Association, part of one of 33 American Baptist regions; and  Armenian Apostolic Church of St. Gregory the Illuminator, which serves the Armenian community in Andorra and surrounding areas.