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Analyzing State Household Income Patterns: 2010-2011

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Estimates from the 2010 American Community Survey (ACS) and the 2011 ACS show household income continues to decline. Real median household income in the United States fell between 2010 and 2011, declining by 1.3 percent from $51,144 to $50,502. This section presents data on median household income for the U.S. and each state for 2010, 2011 and change in an interactive ranking table. The 2011 data became available in September 2012; these data update with 2012 estimates in September 2013.

Income Inequality
The Gini Index (see terms) for the United States in 2011 (0.475) was significantly higher than in 2010 (0.469). This increase suggests more income inequality across the country. The Gini Index for 2011 increased in 20 states. The remaining 30 states and the District of Columbia showed no statistically significant change between 2010 and 2011. No state had a decrease in the Gini Index between 2010 and 2011. This increase in 20 states between 2010 and 2011 can be compared with the change between 2009 and 2010 when there was an increase in Gini Indexes in nine states. U.S. and state median household income and Gini Indexes are shown in the interactive ranking table below.

State Household Income Characteristics: 2010-2011
  Interactive ranking table -- click column header to sort; click again to sort other direction.
  Drag column separator to change column width
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Use mouseover on header of each column to view the expanded description of each column.

Household income. Includes income of the householder and all other people 15 years and older in the household, whether or not they are related to the householder.

Median. The point that divides the household income distribution into halves, one half with income above the median and the other with income below the median. The median is based on the income distribution of all households, including those with no income.

Gini Index. Summary measure of income inequality. The Gini Index varies from 0 to 1, with a 0 indicating perfect equality, where there is a proportional distribution of income. A 1 indicates perfect inequality, where one household has all the income and all others have no income.

Additional Information
Proximity develops geodemographic-economic data and analytical tools and helps organizations knit together and use diverse data in a decision-making and analytical framework. We develop custom demographic/economic estimates and projections, develop geographic and geocoded address files, and assist with impact and geospatial analyses. Wide-ranging organizations use our tools (software, data, methodologies) to analyze their own data integrated with other data. Contact Proximity (888-364-7656) with questions about data covered in this section or to discuss custom estimates, projections or analyses for your areas of interest.

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