http://www.dailymail.co.uk/news/article-1315078/Race-maps-America.html
"Using information from the latest U.S. census results, the maps show the extent to which America has blended together the races in the nation’s 40 largest cities. With one dot equalling 25 people, digital cartographer Eric Fischer then colour-coded them based on race..."
One dot equals 25 people
Whites = pink
Blacks = blue
Hispanic = orange
Asians = green
San Francisco
One dot equals 25 people
Whites = pink
Blacks = blue
Hispanic = orange
Asians = green
Houston
One dot equals 25 people
Whites = pink
Blacks = blue
Hispanic = orange
Asians = green
San Antonio
One dot equals 25 people
Whites = pink
Blacks = blue
Hispanic = orange
Asians = green
New York City
One dot equals 25 people
Whites = pink
Blacks = blue
Hispanic = orange
Asians = green
Los Angeles
One dot equals 25 people
Whites = pink
Blacks = blue
Hispanic = orange
Asians = green
Washington D.C.
One dot equals 25 people
Whites = pink
Blacks = blue
Hispanic = orange
Asians = green
Detroit
One dot equals 25 people
Whites = pink
Blacks = blue
Hispanic = orange
Asians = green
Atlanta Circa 2000