The New York Times has taken Census Bureau data from from 2005 to 2009 and created a nice series of maps. You can zoom in to browse by state, county, and even Census district. You need to be aware that the dots in the above map are randomly scattered within the Census district, and do not map exactly to an address. Still, it is a pretty useful tool to see where different racial groups live.
Paul Adams
Paul Adams leads an award-winning, diverse contractor team that runs a federal high performance computing facility where he has worked for 17 years. He loves getting his hands on the latest visualization and computer hardware, astronomy, aerospace engineering, working with the poor, and ringing cowbells.