Median household income

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Definitions: The annual income level at which half of all households in the area have more income and half have less. These are in current dollars (not adjusted for inflation).

Data Source: Washington State Office of Financial Management (OFM). Data were retrieved on October 5, 2018 from http://www.ofm.wa.gov/economy/hhinc/.

Footnotes: Data last updated in October 2018 by Washington KIDS COUNT.

"The estimation relies on both 1990 and 2000 census data and on the Census Bureau's American Community Surveys' estimates for 2006-2010. These estimates are based on past relationships between available socioeconomic data and county-level median household income. The estimates shown may differ from other median household income data developed from the Office of Financial Management's State Population Survey, Bureau of the Census surveys, or other sources. Survey data, which are subject to sampling variability and bias, are not necessarily more correct than the estimate data. For small counties, the estimated series may show large variations during certain periods," published online at http://www.ofm.wa.gov/economy/hhinc/.