Children under 18 in extreme poverty (5-year average)

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Definitions: The number and share of children under age 18 who live in families with incomes less than 50 percent of the federal poverty level, as defined by the U.S. Office of Management and Budget.

Data Source: The U.S. Census Bureau's American Fact Finder, 2005-2009, 2006-2010, 2007-2011, 2008-2012, 2009-2013, 2010-2014, 2011-2015 American Community Survey (ACS) 5-Year Estimates. Data were retrieved on June 30, 2017 from: (Table B17024).

*Please use these estimates with caution. The total confidence interval (upper bound minus lower bound) of the percent estimate, is 10 percentage points or greater, which indicates that this estimate has a large margin of error. This generally occurs when estimate relies on small number of cases. To obtain total confidence interval values around the estimates for this indicator please contact Washington KIDS COUNT.

S: These data have been suppressed because the percent estimates have a total confidence interval of 10 percentage points or greater and/or the counts are 10 or fewer.


Data last updated in June 2017 by Washington KIDS COUNT. 

The 2011-2015 ACS data release marked the seventh time that 5-year estimates were released for all counties in Washington state. The ACS 2011-2015 data were collected during calendar years 2011, 2012, 2013, 2014, and 2015. 

The 5-year ACS estimates represent the average characteristics over the 5-year period of time, and therefore are less current than 1-year ACS estimates. However, these estimates are more reliable than 1-year and 3-year ACS estimates because they are based on a larger sample size. The 5-year estimates are also available for all geographic areas because of their sample size, whereas the 3-year  estimates are published for populations of 20,000 or greater, and the 1-year estimates are only published for populations of 65,000 or greater. More information about 1-year versus 3-year versus 5-year ACS surveys and estimates are available online at

The federal poverty definition consists of a series of thresholds based on family size and composition. In 2015, 50% of the poverty threshold for a family of two adults and two children was $12,125.