During the late 1930s, the Home Owners Loan Corporation (HOLC) created a series of maps designed to summarize spatial variation in the riskiness of mortgage lending in different neighborhoods. The HOLC maps, in conjunction with contemporaneous maps produced by the Federal Housing Agency (FHA),...

During the late 1930s, the Home Owners’ Loan Corporation (HOLC) developed a series of area descriptions with color-coded maps of cities that summarized mortgage lending risk. We provide evidence that these maps were not the primary source used by the FHA to create their “redlining” maps...