 This research paper examines the relationship between historical housing policies and current patterns of interurban heat. It found that 94% of studied areas displayed consistent city-scale patterns of elevated land surface temperatures in formerly redlined areas relative to their non-redlined neighbors by as much as 7 degrees Celsius. Additionally, it was observed that southeast and western cities display the greatest differences while Midwest cities display the least. Finally, nationally, land surface temperatures in redlined areas were found to be approximately 2.6 degrees Celsius warmer than in non-redlined areas. This article was authored by Jeremy S. Hoffman, Vivek Shandas, and Nicholas Pendleton.