The Demographic Statistical Atlas of the United States

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Map of Household Income by Tract in ZIP Code 85707

Median household income ($):

$47,200		$49,500		$51,800		$54,100		$56,300		$58,700

20th percentile of household income ($):

$23,600		$25,300		$27,000		$28,600		$30,300		$32,000

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

$148,500		$151,000		$153,500		$156,000		$158,400		$160,900

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

31.0%		32.0%		33.0%		34.0%		34.9%		36.0%

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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