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Gini Coefficient by Zip Code


Summary: Gini Coefficient (measure of income inequality) by U.S., state, counties, cities, zip codes

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The Gini Coefficient (or Index) measures income inequality.  The coefficient ranges from 0 (perfect equality) to 1 (perfect inequality).  The coefficient is based on the Lorenz curve and perfectly equal income distribution.  

 

Zip codes reported reflect Zip Code Tabulation Areas (ZCTA), which are different from ZIP Codes used by the U.S. Postal Service. Some sources for this database report zip code rather than ZCTA; values for these variables are reported only when zip code and ZCTA values are the same.  For additional information on ZCTAs, see here.

Geographic Coverage: U.S., States, Counties, Zip Code

Periodicity: Annually

Series Begins/Ends: 2011 - 2019

Data Source: U.S. Bureau of the Census

New Database added:  Jun. 25, 2021 Estimated next update: Oct. 18, 2021

Please enter a state, county, city or zip code.    Zip codes reported reflect Zip Code Tabulation Areas (ZCTA), which are different from ZIP Codes used by the U.S. Postal Service. Some data sources report zip code rather than ZCTA; values for these variables are reported only when zip code and ZCTA values are the same. For additional information on ZCTAs, see Additional Background above.  

Cities associated with zip codes reflect the principal city according to the U.S. Postal Service.   

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