http://graphics8.nytimes.com/packages/pdf/national/RussellSageIncomeSegregationreport.pdf?ref=usGrowth in the Residential Segregation of Families by Income, 1970-2009
Sean F. Reardon
Kendra Bischoff
Stanford University
Report Abstract
November 2011
As overall income inequality grew in the last four decades, high- and
low-income families have become increasingly less likely to live near
one another. Mixed income neighborhoods have grown rarer, while
affluent and poor neighborhoods have grown much more common. In
fact, the share of the population in large and moderate-sized metropolitan
areas who live in the poorest and most affluent neighborhoods
has more than doubled since 1970, while the share of families living in
middle-income neighborhoods dropped from 65 percent to 44 percent.
The residential isolation of the both poor and affluent families has
grown over the last four decades, though affluent families have been
generally more residentially isolated than poor families during this
period. Income segregation among African Americans and Hispanics
grew more rapidly than among non-Hispanic whites, especially since
2000. These trends are consequential because people are affected by
the character of the local areas in which they live. The increasing
concentration of income and wealth (and therefore of resources such as
schools, parks, and public services) in a small number of neighborhoods
results in greater disadvantages for the remaining neighborhoods
where low- and middle-income families live.