3. By the numbers: The Age of Residents in King County
Last month’s census data showed that the median age of people who live in King County has dropped from 37.1 to 36.9 years since 2010, while the national average increased from 37.2 to 38.2 years during the same time period. This means King County is getting younger while the rest of the country is getting older. Let’s check out some stats on the matter, provided by Gene Balk of the Seattle Times.
Age stats by group in King County for 2010 and 2018 (number of people in each age group for both years, and the number/percentage of increase)
Under 15: 344,391 (2010)/385,207(2018), +40,816/11.9% increase
15-24: 247,347/252,726, +5,379/2.2% increase
25-39: 461,875/589,854, +127,979/27.7% increase
40-59: 565,053/588,194, +23,141/4.1% increase
60-79: 249,893/351,402, +101,509/40.6% increase
80-plus: 62,733/69,816, +7,083/11.3% increase
More stats on age for both King County and the U.S.
-Number of counties in the United States: 3,142
-Number of counties nationwide that saw a decrease in median resident age: 525
-King County is one of only six of the nation’s top 100 highest-populated counties to see a decrease in age.
-Fastest growing age group in King County from 2010-2018: 60-79 (+101,509/40.6% increase). Growth of this age group in KC is more than twice that of the national average
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