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Interactive web map of city facilities, parks, and service areas. Maps exportable to PDF.
Philadelphia neighborhoods are fluid entities without fixed boundaries. The resources below describe commonly accepted neighborhood boundaries. (For demographic or other data on neighborhoods, see Social & Cultural.)
Alotta, Robert I. Chicago, Ill. : Bonus Books, c1990.
Sanborn Fire Insurance Maps
The Sanborn Map Company helped fire insurance companies set rates in the late 19th and early 20th centuries with these detailed maps of each built structure, its use, dimensions, height, building material, and other relevant features (fire alarms, water mains and hydrants, for example).
Search the National Oceanic and Atmospheric Administration's collection of over 20,000 nautical charts, hydrographic surveys, topographic surveys, geodetic surveys, city plans and Civil War battle maps, including over 400 Philadelphia-area maps. In MrSID format.