Unity Council Report - February 2021 | Page 65

Dissimilarity Index

Residential Segregation

Dissimilarity Index

The dissimilarity index measures how evenly spread two groups are across geographic areas . In other words , the dissimilarity index compares the total population of two demographic groups in order to measure segregation . The numerical value of the index is the percentage of one of the two groups being compared that would have to move to a different geographical sub-area to match the distribution of the two groups of the larger area . In this instance , the sub-areas considered are Census tracts within Arlington , and the larger area is the City of Arlington itself .
White and Black Segregation by Census Tract , 2018
More Segregated
( between the comparison selec�on )
Less Segregated
White and Latino Segregation by Census Tract , 2018
More Segregated
( between the comparison selec�on )
Less Segregated
Housing
If the share of one group compared to another group in a tract is greater than that share across the whole city , that would indicate a higher dissimilarity index .
When comparing White and People of Color , east- and west-central Arlington are the most segregated , whereas southeast Arlington is the least segregated . This pattern holds true for White and Black comparison , and White and Hispanic , with some variation .
White and People of Color Segregation by Census Tract , 2018
More Segregated
( between the comparison selec�on )
Less Segregated
Table of Segregation Measures for the City of Arlington , 2018
Pairing
Index Value
White - Person of Color
41.685
White - Black
43.873
White - Hispanic
46.074
White - Asian or Pacific Islander
44.498
Black - Hispanic
33.352
Black - Asian or Pacific Islander
28.663
Hispanic - Asian or Pacific Islander
40.773
Unity Council Report
Page Source : U . S . Census Bureau , 2018 ACS 5-Year Estimates .
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