Redlining & housing discrimination
Redlining Philadelphia
Security map drawn 1937; federal underwriting practice until the Fair Housing Act of 1968North and West Philadelphia, graded D on the 1937 HOLC map, PA
Federal appraisers graded North and West Philadelphia "D" and coloured them red, and the city's banks followed. The grades drawn in 1937 still track where the mortgages, the street trees and the life expectancy are.
The shape on the map is a reconstruction drawn from historical descriptions, not a surveyed boundary. Follow the sources for authoritative maps.