Are we segregated?

How do highways, roads, railroads and rivers separate us, if at all?

Where do blacks, Hispanics and Asian-Americans live? Spread out, mixed among whites, or in clusters?

Do you really know the racial make-up of your community?

Here’s a “racial dot map,” an interesting tool developed by the University of Virginia’s Weldon Cooper Center for Public Service. Using data from the 2010 census, the project placed 308,745,538 dots — one for each person in the U.S. — and colored each by race and ethnicity. Go here for a map of the entire country.

Here are some interesting comparisons:

Milwaukee is a prime example of a heavily segregated city.

Sacramento, on the other hand, is among the nation’s more integrated major cities, for those with significant minority populations, according to some analyses.