To compute the segregation numbers for other cities go to http://www.census.gov/hhes/www/housing/resseg/gettable_place.html

 

The table below was taken from http://www.census.gov/cgi-bin/hhes/resseg/segtable_place.pl

 

 

U.S. Census Bureau

Housing Patterns Place Table

Because of their complexity, segregation indexes are particularly subject to programming error. Indexes for places with small minority populations are also less reliable than those with larger ones. Places are uniquely identified by their two-digit FIPS state code and five-digit FIPS place code. 

Year

Race / Ethnicity

Place Name

FIPS State Code

FIPS Place Code

Total Population

Minority Population

Absolute Concentration Index (ACO)

Dissimilarity Index (D)

Interaction Index (xPy*)

Isolation Index (xPx*)

Relative Concentration Index (RCO)

2000

Black or African American

St. Louis city, MO

29

65000

348,189

181,503

0.555

0.684

0.200

0.800

0.222

Source: U.S. Census Bureau, Housing and Household Economic Statistics Division


Skip this main site navigation menuCensus 2000  |  Subjects A to Z  |  Search  |  Product Catalog  |  Data Tools  |  FOIA  |  Quality  |  Privacy Policy  |  Policies  |  Contact Us  |  Home
 
 U.S. Census Bureau: Helping You Make Informed Decisions

 

 

ABSOLUTE CONCENTRATION

“….computes the total area inhabited by a group and compares this with the minimum and maximum areas (the areal sum, respectively, of the fewest number of the geographically smallest and the greatest number of the geographically largest areal units) that could accommodate a group of that size (at observed densities). The index varies from 0.0 to 1.0, where a score of 1.0 means that a group has achieved the maximum spatial concentration possible (all minority members live in the smallest areal units).”

 

DISSIMILARITY

“measures the percentage of a group's population that would have to change residence for each neighborhood to have the same percentage of that group as the metropolitan area overall. The index ranges from 0.0 (complete integration) to 1.0 (complete segregation).”

 

INTERACTION and ISOLATION.

“The two indexes, respectively, reflect the probabilities that a minority person shares a unit area with a majority person or with another minority person. The interaction index measures the exposure of minority group members to members of the majority group as the minority-weighted average of the majority proportion of the population in each areal unit. The isolation index measures "the extent to which minority members are exposed only to one another," (Massey and Denton, p. 288) and is computed as the minority-weighted average of the minority proportion in each area”

 

RELATIVE CONCENTRATION

like the absolute concentration measure mentioned above “…but takes account of the distribution of the majority group as well. This measure varies from -1.0 to 1.0.(4) A score of 0.0 means that the minority and majority groups are equally concentrated. An index of -1.0 means that the concentration of the majority exceeds that of the minority to the maximum extent, and an index of 1.0 the reverse”

 

                                                                                                    Source: U.S. Census Bureau, Housing and Household Economic Statistics Division

                                                                                                                                                           Created: June 18, 2002

                                                                                                                                                       Last Revised: May 07, 2003

                                                                                                                        http://www.census.gov/hhes/www/housing/resseg/app_b.html