Allentown is a populated place LOCATED WITHIN the City of Pittsburgh. In turn, the City of Pittsburgh is located within Allegheny County.
Allentown is located at latitude 40.428 and longitude -79.994.
Since Allentown is located within the City of Pittsburgh, all of the census and demographic data for residents of Allentown are included as part of the information reported for City of Pittsburgh in the "Profile" tab above.