The Changing Shape of American Cities

Introduction:
The last two decades have brought dramatic changes to many American cities. Most cities in the United States in 1990 had a “donut” shape, with wealthier residents in a booming suburban ring surrounding a decaying core. Today cities are increasingly resembling what has been called a new donut – with three, rather than two rings. The center has grown much more desirable to educated, higher-income residents, especially young adults under the age of 35. Poverty, meanwhile, is migrating outwards, creating an “inner ring” of urban and early suburban neighborhoods around the core, where per capita incomes have fallen and education rates are stagnant. Beyond the inner ring, an outer ring of newer and larger suburbs continues to add population.

Source: Demographics Research Group, University of Virginia Weldon Cooper Center for Public Service.

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