http://www.wired.com/design/2013/08/how-segregated-is-your-city-this-eye-opening-map-shows-you/
"This map, created by Dustin Cable at University of Virginia's Weldon Cooper Center for Public Service, is the most comprehensive representation of racial distribution in America ever made. Drawing from the 2010 Census, it shows one dot per person. White people are shown with blue dots; African-Americans with green; Asians with red; and Latinos with orange, with all other race categories from the Census represented by brown."