U.S. Department of Commerce

Housing Patterns




Table 5-3


Table 5-3. Distribution of Percent Change in Residential Segregation Indexes for Blacks or African Americans: 1980-2000
  Dissimilarity Index Isolation Index Delta Index Absolute Centralization Index Spatial Proximity Index
Number Percent Number Percent Number Percent Number Percent Number Percent

1980-1990
Increase of 5% or more 5 2% 19 9% 15 7% 40 18% 8 4%
Increase of 1-4.99% 10 5% 26 12% 33 15% 37 17% 42 19%
Change of less than 1% 20 9% 13 6% 55 25% 47 21% 74 34%
Decrease of 1-4.99% 51 23% 43 20% 100 45% 58 26% 69 31%
Decrease of 5% or more 134 61% 119 54% 17 8% 38 17% 27 12%

1990-2000
Increase of 5% or more 5 2% 35 16% 6 3% 30 14% 9 4%
Increase of 1-4.99% 12 5% 37 17% 18 8% 31 14% 66 30%
Change of less than 1% 29 13% 20 9% 39 18% 25 11% 65 30%
Decrease of 1-4.99% 46 21% 47 21% 132 60% 77 35% 67 30%
Decrease of 5% or more 128 58% 81 37% 25 11% 57 26% 13 6%

1980-2000
Increase of 5% or more 7 3% 34 15% 17 8% 41 19% 19 9%
Increase of 1-4.99% 1 0% 19 9% 18 8% 27 12% 55 25%
Change of less than 1% 9 4% 16 7% 23 10% 24 11% 51 23%
Decrease of 1-4.99% 24 11% 24 11% 95 43% 58 26% 46 21%
Decrease of 5% or more 179 81% 127 58% 67 30% 70 32% 49 22%
Note: Includes 220 Metropolitan Areas with at least 10 tracts and 3% or 20,000 or more Blacks or African Americans in 1980.
Source: U.S. Census Bureau, Census 1980, 1990, and 2000 Summary File 1.
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Source: U.S. Census Bureau, Housing and Household Economic Statistics Division
Last Revised: October 31, 2011