Researchers at Harvard University's Initiative for Global Health and its School of Public Health divided the US into eight "Americas" based on factors including race, location, population density, income and homicide rates:
Asians, 10.4 million popuulation, $21,566 average income, life expectancy 84.9 years;
Northland low-income rural whites, 3.6 million population, $17,758 average income, life expectancy 79 years;
Middle Americans, 214 million population, $24,640 average income, life expectancy 77.9 years;
Low-income whites in Appalachia and Mississippi, 16.6 million population, $16,390 average income, life expectancy 75 years;
Western Native American, 1 million, $10,029 average income, life expectancy 72.7 years;
Black middle America, 23.4 million population, $15,412 average income, life expectancy 72.9 years;
Southern, rural, low-income black, 5.8 million population, $10,463 average income, life expectancy 71.2 years; and
High-risk urban black, 7.5 million population, $14,800 average income, life expectancy 71.1 years.
