Philadelphia and Its People in Maps:
The 1790s
As Philadelphia became the Capital of the United States, the first federal census takers in 1790 counted 44,096 residents in the city and its adjacent suburbs of Southwark and the Northern Liberties, making it the most populous urban center in the new nation. Using Geographic Information Systems (GIS) technology with data from the census and the 1791 city directory, two historians have mapped ...