Related Experiment Video
Updated: Aug 1, 2026

Measuring and Mapping Patterns of Soil Erosion and Deposition Related to Soil Carbonate Concentrations Under Agricultural Management
Published on: September 12, 2017
Racial concentration and segregation across U.S. counties, 1950-1980
Abstract:
By presenting race-specific population concentration indexes for U.S. counties for the 1950-1980 period, this paper updates and extends previous analyses of 1900-1974 patterns of population concentration by Duncan et al. (1961) and Vining and Strauss (1977). Declines in population concentration persisted through 1980 only among the white population. Blacks continued to experience increases in population concentration between 1970 and 1980. These racially divergent patterns of concentration in the 1970s have translated into increases in segregation between blacks and whites across U.S. counties.
More Related Videos
Related Concept Videos
Law of Segregation
Stereotypes, Prejudice, and Discrimination
Stratified Sampling Method
To choose a stratified sample, divide the population into groups called strata and then take a...
Relative Frequency Histogram
Segregation in Fresh Concrete
Applications of Life Tables

