The Demographic Statistical Atlas of the United States

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Map of Household Income by County Subdivision in ZIP Code 23160

Median household income ($):

$69,500		$72,100		$74,800		$77,400		$80,000		$82,700

20th percentile of household income ($):

$34,600		$36,600		$38,500		$40,400		$42,300		$44,200

Mean household income of the top 5% of households ($):

$265k		$296k		$326k		$357k		$387k		$418k

Gini Index of income inequality (larger Gini Index means more inequality) (%):

35.4%		36.3%		37.2%		38.1%		39.0%		39.9%

Household Income: total income from all people in the household
Median: in terms of income, it is the income for which 50% of households have a lower income, and 50% have a higher income
Percentile: for example, the 80th percentile of household income is the income for which 80% of household have a lower income and 20% have a higher income
Quintile: a quintile is 20% of a population, grouped by percentile; for example, the 2nd quintile is all members of a population between the 20th and 40th percentiles
Gini Index: a statistical measure of how unevenly income is distributed in a population (ranging from 0% to 100%, the higher the number, the greater the inequality)

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