

Parts of the Battle of Germantown in 1777 occurred throughout Mount Airy. For example, the Unitarian Society of Germantown, the Germantown Jewish Centre, the Germantown Christian Assembly, and the Germantown Montessori School are all in Mount Airy, yet also belong culturally to Germantown. Many buildings in Mount Airy carry the identity and even the name of Germantown in one way or another. Historically, the entire area was part of the German Township. The question is moot, however, as the two neighborhoods blend together very gradually. The most common consensus is that Johnson Street is the de facto boundary however, the West Mount Airy Neighbors and East Mount Airy Neighbors organizations consider Washington Lane to be Mount Airy's southern edge. There is no official boundary between Mount Airy and Germantown.
QUICKFIRE MOUNT AIRY CODE
However, the 19119 ZIP code is almost entirely coterminous with the cultural-consensus boundaries of Mount Airy. The USPS does not officially correlate neighborhood names to Philadelphia ZIP Codes, each of which is called "Philadelphia" or "Phila". Beyond Stenton Avenue is Cedarbrook (which is considered to be part of Mount Airy by some) and West Oak Lane. Germantown borders the southeast of Mount Airy, and Stenton Avenue marks the northeast border. On the west side is the Wissahickon Gorge, which is also part of Fairmount Park, beyond which lies Roxborough and Manayunk. Mount Airy is bounded on the northwest by the Cresheim Valley, which is part of Fairmount Park. Map of Philadelphia highlighting the Mount Airy neighborhood
