Two quick thoughts about this interactive Racial Dot Map of the 2010 Census that was created by the University of Virginia:
1. It's pretty damn impressive. There are over 308 million dots on this map, representing each person who answered the 2010 Census. Emily Badger of The Atlantic Cities calls this map "strangely beautiful" and notes that it is "staggering both visually and statistically." She's right. The one-dot-per-person map shows settlement patterns, density and race distribution in stunning clarity:
To be sure, most of urban America is like this; as Badger notes, "many of those metro areas look purple from a distance until [...] you zoom in closer and colors break apart. The
city is diverse from a distance, but quite segregated at the
neighborhood and even block level."
In other words, even in supposedly "post-racial" 2010, we generally tended to live in places were people who look like us live.
Anyway, click on the link at the top of this post and play with the map yourself. It's quite fascinating.