Now you can skip hours of internet research and jump straight to getting answers with our meaningful at-a-glance Demographics Spreadsheet Report. With the most current & most popular demographic data, it's the perfect starting point for your research about King County and the rest of Washington.
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All King County population data above are from the US Census Bureau.
The population data for King County are from the Census' American Community Survey 2017 5-year estimates and the Census' 2018 Population Estimates. The demographic data for Kitsap County, Pierce County, Snohomish County, and Snohomish County are the most current, comparable demographics available from the US Census Bureau, are from the American Community Survey 2017 5-year estimates, and were downloaded on 6 December 2018. Check out our FAQ section for more details.
With 2,233,163 people, King County is the 1st most populated county in the state of Washington out of 39 counties. But watch out, King County, because Pierce County with 891,299 people and Snohomish County with 814,901 people are right behind you.
The largest King County racial/ethnic groups are White (61.4%) followed by Asian (16.5%) and Hispanic (9.5%).
In 2017, the median household income of King County residents was $83,571. King County households made slightly more than Kitsap County households ($68,336) and Snohomish County households ($78,020) . However, 10.2% of King County residents live in poverty.
The median age for King County residents is 37.2 years young.
86% of people CANNOT find the data they're looking for on the US Census Bureau website. Source: Nielsen Norman Group
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