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Philadelphia Studies: General & Historical

General

Neighborhoods

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.)

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).

Historical