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Gini Coefficient


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 for households.  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. See here for more information on ZCTAs.

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

Periodicity: Annually

Series Begins/Ends: 2011 - 2020

Source (APA): RAND State Statistics. (2022, March 31). Gini Coefficient. https://randstatestats.org/us/stats/gini-coefficient.html?dbc=cmFuZF91c2E=&bid=%27NjA=%27
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Derived From: U.S. Bureau of the Census

New Database added:  Mar. 31, 2022 Estimated next update: Feb. 22, 2023

Please enter a state, county, city or zip code.    ZIP Codes reported reflect ZIP Codes Tabulation Areas (ZCTA), which are different from ZIP Codes used by the U.S. Postal Service. Some data sources report ZIP Codes rather than ZCTA; values for these variables are reported only when ZIP Code and ZCTA values are the same. See <a href=https://www.census.gov/programs-surveys/geography/guidance/geo-areas/zctas.html target=_blank>here</a> for more information on ZCTAs.  

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

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Free users may access only the most recent year's data.


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