Examines migration dynamics for metropolitan areas that suggest immigration and internal migration processes are leading to a greater demographic balkanization--a spatial segmentation of the population by race, ethnicity, and socioeconomic status across metropolitan areas. A brief overview of migration at the state level is also provided. (GR)

Evaluates three broad dimensions of new urban-growth and urban-decline patterns in the United States on the basis of results from the 1990 census. These dimensions involve new patterns of urbanization, the expanded growth of the nation's minority populations, and the continued spread of population and jobs outward from central cities. (GLR)