Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https://
means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
The City of Philadelphia made a major revision of the zoning code and base maps in 2012. These shapefiles provide a few historic versions of zoning data up to the time of the zoning code change.
data.gov
An official website of the GSA's Technology Transformation Services