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.
Adjacent to St. Mary's on Ridge Avenue are two significant local churches: Andorra Baptist Church, the main office of the Philadelphia Baptist Association, part of one of 33 American Baptist areas; and  Armenian Apostolic Church of St. Gregory the Illuminator, which caters to the Armenian community in Andorra and nearby residents.