Census and PolicyMap: Income Distribution Index

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CategoriesIncome, Poverty & Wealth
Download Availableyes
GeographiesCounty
Last Updated on PolicyMapMay 2026
Public Edition or Subscriber-onlySubscriber Only
SourceU.S. Census American Community Survey (ACS), PolicyMap
Years Available2005-2009, 20010-2014, 2015-2019, 2020-2024

Description:

The Income Distribution Index characterizes the overall income makeup of an area by identifying which income tier – lower, moderate, or higher – accounts for the largest share of households. It is designed to help users quickly understand whether an area skews toward one end of the income spectrum or reflects a more mixed economic profile. It is calculated from the Census ACS households income data.