Discusses "general trends in black urbanization for the greater part of the twentieth century and the similarities and dissimilarities black trends have had with those of whites." Analyzes "the role migration has played in redistributing blacks to the country's largest cities." Examines "urbanization trends in terms of black occupational and…

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)