A friend of mine pointed me to this spiffy tool made avavilable by the New York Times. It graphs the racial information sampled by the Census Bureau between 2005 and 2009 for every county and census block (depending on your scale) in the United States. The races listed are White, Black, Hispanic, Asian and “other”.
What caught my eye was how racially segregated so many US cities remain. If you zoom in to Chicago, you can see to the street where one racial neighborhood ends and another begins. The same with Philadelpha. And Los Angeles. Some cities like Seattle are relatively mixed, but by and large, most seem to be segregated.
I have to wonder how much of this is self-selection, how much is economics and how much is racism still going strong.