Mount Airy is a neighborhood of Northwest Philadelphia in the state of Pennsylvania.

Wister is a neighborhood in Northwest Philadelphia, Pennsylvania, United States.

He solves a murder/rape case in Northwest Philadelphia (but not before breaking the heart of the female detective who becomes his main partner and assistant).

Morton is a neighborhood in Northwest Philadelphia.

Northwest Philadelphia is a section of the city of Philadelphia, Pennsylvania.

The two patrol districts serving Northwest Philadelphia are the 5th and 14th districts.

Northwest Philadelphia has a population of 64,515.

Northwest Philadelphia is an area where exceptions to the regular pattern of the street grid are plentiful.

At the time, the district was based in Northwest Philadelphia.

It is also sometimes said to be in Northwest Philadelphia, owing to its rather northwestern location on Philadelphia's letter-y-like outline.