Counties with the most seniors in Washington

Written by:
August 30, 2022
Jelson25 // Wikimedia Commons

Counties with the most seniors in Washington

Seniors will comprise more than 20% of U.S. residents in 2030, up from 15% in 2020. By 2034, older adults will outnumber children, according to Census Bureau projections.

Across the U.S., 52 million Americans are 65 years or older, according to the U.S. Census Bureau, and a quarter of them live in just three states: California, Florida, and Texas. By comparison, North Dakota, South Dakota, Vermont, Wyoming, and Alaska each have fewer than 150,000 senior residents. The size of a state's senior population means a lot in terms of demand for resources like health care, affordable housing, assisted living, in-home and nursing care, and support services, and the quality and availability of those resources help determine where seniors migrate.

With baby boomers moving into old age, fewer babies being born, and longer life expectancies, the senior population of America is on a spectacular rise. The lengthening of the U.S. life expectancy has been particularly dramatic, rising to nearly 79 years from 68 years in 1950.

Stacker compiled a list of counties with the most seniors in Washington using data from the U.S. Census Bureau. Counties are ranked by the highest percentage of residents 65 years or older according to 2020 5-year estimates.

Keep reading to find out which counties have the most seniors in Washington.

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Williamborg // Wikimedia Commons

#39. Franklin County

- Population aged 65 or older: 9.5%
- Population aged 18 and younger: 32.5%
- Median age: 30.4 years old
--- Median age of males: 30.9 years old
--- Median age of females: 29.9 years old
- Total population: 93,681 people
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Ilyaunfois // Wikimedia Commons

#38. Whitman County

- Population aged 65 or older: 10.7%
- Population aged 18 and younger: 15.0%
- Median age: 25.2 years old
--- Median age of males: 25.1 years old
--- Median age of females: 25.2 years old
- Total population: 49,577 people
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Joe Mabel // Wikimedia Commons

#37. Adams County

- Population aged 65 or older: 11.1%
- Population aged 18 and younger: 35.2%
- Median age: 28 years old
--- Median age of males: 27.2 years old
--- Median age of females: 29 years old
- Total population: 19,702 people
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kan_khampanya // Shutterstock

#36. King County

- Population aged 65 or older: 13.2%
- Population aged 18 and younger: 20.2%
- Median age: 37 years old
--- Median age of males: 36.2 years old
--- Median age of females: 37.8 years old
- Total population: 2,225,064 people
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SounderBruce // Wikimedia Commons

#35. Snohomish County

- Population aged 65 or older: 13.5%
- Population aged 18 and younger: 22.6%
- Median age: 38 years old
--- Median age of males: 37.3 years old
--- Median age of females: 38.9 years old
- Total population: 811,572 people

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Michael S. Shannon // Wikimedia Commons

#34. Yakima County

- Population aged 65 or older: 13.8%
- Population aged 18 and younger: 29.7%
- Median age: 32.9 years old
--- Median age of males: 31.9 years old
--- Median age of females: 33.8 years old
- Total population: 250,649 people
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SounderBruce // Wikimedia Commons

#33. Pierce County

- Population aged 65 or older: 13.8%
- Population aged 18 and younger: 23.4%
- Median age: 36.2 years old
--- Median age of males: 35 years old
--- Median age of females: 37.5 years old
- Total population: 891,862 people
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Irra // Shutterstock

#32. Grant County

- Population aged 65 or older: 13.9%
- Population aged 18 and younger: 29.5%
- Median age: 33.2 years old
--- Median age of males: 32.8 years old
--- Median age of females: 33.6 years old
- Total population: 96,648 people
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formulanone // Wikimedia Commons

#31. Benton County

- Population aged 65 or older: 14.9%
- Population aged 18 and younger: 26.6%
- Median age: 36 years old
--- Median age of males: 35.1 years old
--- Median age of females: 36.8 years old
- Total population: 200,715 people
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Steve Morgan // Wikimedia Commons

#30. Clark County

- Population aged 65 or older: 15.4%
- Population aged 18 and younger: 23.9%
- Median age: 38.6 years old
--- Median age of males: 37.5 years old
--- Median age of females: 39.5 years old
- Total population: 481,950 people

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MrX // Wikimedia Commons

#29. Kittitas County

- Population aged 65 or older: 16%
- Population aged 18 and younger: 16.9%
- Median age: 33.7 years old
--- Median age of males: 32.7 years old
--- Median age of females: 35 years old
- Total population: 47,097 people
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Ron Reiring // Wikicommons

#28. Spokane County

- Population aged 65 or older: 16.2%
- Population aged 18 and younger: 22.1%
- Median age: 37.8 years old
--- Median age of males: 36.6 years old
--- Median age of females: 39 years old
- Total population: 513,402 people
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Nick Kelly / Faithlife Corporation

#27. Whatcom County

- Population aged 65 or older: 17.3%
- Population aged 18 and younger: 19.4%
- Median age: 37.5 years old
--- Median age of males: 36.5 years old
--- Median age of females: 38.3 years old
- Total population: 224,538 people
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Joe Mabel // Wikicommons

#26. Thurston County

- Population aged 65 or older: 17.3%
- Population aged 18 and younger: 21.4%
- Median age: 39.1 years old
--- Median age of males: 37.7 years old
--- Median age of females: 40.8 years old
- Total population: 284,698 people
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Thayne Tuason // Wikimedia Commons

#25. Douglas County

- Population aged 65 or older: 17.5%
- Population aged 18 and younger: 25.8%
- Median age: 37.8 years old
--- Median age of males: 36 years old
--- Median age of females: 39.5 years old
- Total population: 42,520 people

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Dcoetzee // Wikimedia Commons

#24. Kitsap County

- Population aged 65 or older: 17.9%
- Population aged 18 and younger: 20.4%
- Median age: 39.2 years old
--- Median age of males: 37 years old
--- Median age of females: 41.5 years old
- Total population: 268,945 people
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Squarestate7 // Wikicommons

#23. Walla Walla County

- Population aged 65 or older: 18.1%
- Population aged 18 and younger: 21.1%
- Median age: 37.5 years old
--- Median age of males: 35.9 years old
--- Median age of females: 39.2 years old
- Total population: 60,785 people
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Sam Beebe // Wikimedia Commons

#22. Cowlitz County

- Population aged 65 or older: 19%
- Population aged 18 and younger: 22.8%
- Median age: 41 years old
--- Median age of males: 39.8 years old
--- Median age of females: 42.4 years old
- Total population: 108,399 people
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Jennifer Gottwald // Wikicommons

#21. Chelan County

- Population aged 65 or older: 19.1%
- Population aged 18 and younger: 23.5%
- Median age: 40.5 years old
--- Median age of males: 39.2 years old
--- Median age of females: 41.2 years old
- Total population: 76,653 people
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U.S. Geological Survey // Wikimedia Commons

#20. Skamania County

- Population aged 65 or older: 20.6%
- Population aged 18 and younger: 18.7%
- Median age: 47 years old
--- Median age of males: 47.4 years old
--- Median age of females: 46.6 years old
- Total population: 11,906 people

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Joe Mabel // Wikicommons

#19. Skagit County

- Population aged 65 or older: 20.8%
- Population aged 18 and younger: 21.8%
- Median age: 41.6 years old
--- Median age of males: 40.3 years old
--- Median age of females: 43.2 years old
- Total population: 127,442 people
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Steven Pavlov // Wikimedia Commons

#18. Lewis County

- Population aged 65 or older: 21%
- Population aged 18 and younger: 21.6%
- Median age: 42.9 years old
--- Median age of males: 41.5 years old
--- Median age of females: 44.3 years old
- Total population: 79,430 people
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Joe Mabel // Wikimedia Commons

#17. Grays Harbor County

- Population aged 65 or older: 21.7%
- Population aged 18 and younger: 20.3%
- Median age: 44.3 years old
--- Median age of males: 42.6 years old
--- Median age of females: 45.8 years old
- Total population: 73,769 people
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Bouldernavigator // Wikimedia Commons

#16. Okanogan County

- Population aged 65 or older: 21.9%
- Population aged 18 and younger: 23.0%
- Median age: 43 years old
--- Median age of males: 42.6 years old
--- Median age of females: 43.8 years old
- Total population: 42,080 people
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Ian Poellet // Wikimedia Commons

#15. Mason County

- Population aged 65 or older: 22.9%
- Population aged 18 and younger: 19.3%
- Median age: 45.3 years old
--- Median age of males: 42.8 years old
--- Median age of females: 47.9 years old
- Total population: 65,326 people

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Williamborg // Wikimedia Commons

#14. Asotin County

- Population aged 65 or older: 23.3%
- Population aged 18 and younger: 20.4%
- Median age: 44.9 years old
--- Median age of males: 44 years old
--- Median age of females: 45.7 years old
- Total population: 22,636 people
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BrandonHansen18 // Wikimedia Commons

#13. Stevens County

- Population aged 65 or older: 23.3%
- Population aged 18 and younger: 21.4%
- Median age: 47 years old
--- Median age of males: 46.1 years old
--- Median age of females: 48.2 years old
- Total population: 45,233 people
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MagicalT // Wikimedia Commons

#12. Klickitat County

- Population aged 65 or older: 23.7%
- Population aged 18 and younger: 19.3%
- Median age: 46.8 years old
--- Median age of males: 45.9 years old
--- Median age of females: 47.4 years old
- Total population: 22,055 people
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Joe Mabel // Wikimedia Commons

#11. Island County

- Population aged 65 or older: 24.6%
- Population aged 18 and younger: 18.1%
- Median age: 44.1 years old
--- Median age of males: 41.4 years old
--- Median age of females: 46.9 years old
- Total population: 84,187 people
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Publichall // Wikimedia Commons

#10. Lincoln County

- Population aged 65 or older: 25.7%
- Population aged 18 and younger: 21.3%
- Median age: 48.5 years old
--- Median age of males: 47.1 years old
--- Median age of females: 49.4 years old
- Total population: 10,732 people

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Ruthven78 // Wikimedia Commons

#9. Pend Oreille County

- Population aged 65 or older: 26.3%
- Population aged 18 and younger: 19.0%
- Median age: 50.8 years old
--- Median age of males: 50.1 years old
--- Median age of females: 51.3 years old
- Total population: 13,588 people
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Calvin Beale // Wikimedia Commons

#8. Garfield County

- Population aged 65 or older: 26.4%
- Population aged 18 and younger: 20.0%
- Median age: 49.7 years old
--- Median age of males: 51.3 years old
--- Median age of females: 49.4 years old
- Total population: 2,258 people
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Kevmi // Wikimedia Commons

#7. Ferry County

- Population aged 65 or older: 27.4%
- Population aged 18 and younger: 16.2%
- Median age: 52.1 years old
--- Median age of males: 49.7 years old
--- Median age of females: 53.4 years old
- Total population: 7,643 people
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John Stanton // Wikimedia Commons

#6. Columbia County

- Population aged 65 or older: 28.8%
- Population aged 18 and younger: 17.2%
- Median age: 49 years old
--- Median age of males: 48.6 years old
--- Median age of females: 50.5 years old
- Total population: 4,024 people
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Neonstar // Wikimedia Commons

#5. Clallam County

- Population aged 65 or older: 29.5%
- Population aged 18 and younger: 17.0%
- Median age: 50.9 years old
--- Median age of males: 48.9 years old
--- Median age of females: 53.1 years old
- Total population: 76,482 people

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Sam Beebe // Wikimedia Commons

#4. Pacific County

- Population aged 65 or older: 31.5%
- Population aged 18 and younger: 15.7%
- Median age: 54.4 years old
--- Median age of males: 53 years old
--- Median age of females: 55.4 years old
- Total population: 22,121 people
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Walter Siegmund // Wikimedia Commons

#3. Wahkiakum County

- Population aged 65 or older: 32.6%
- Population aged 18 and younger: 17.5%
- Median age: 55.7 years old
--- Median age of males: 55.6 years old
--- Median age of females: 55.7 years old
- Total population: 4,318 people
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Jelson25 // Wikimedia Commons

#2. San Juan County

- Population aged 65 or older: 33.5%
- Population aged 18 and younger: 13.0%
- Median age: 56.7 years old
--- Median age of males: 56.4 years old
--- Median age of females: 56.8 years old
- Total population: 16,953 people
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Adbar // Wikimedia Commons

#1. Jefferson County

- Population aged 65 or older: 36.4%
- Population aged 18 and younger: 12.0%
- Median age: 59 years old
--- Median age of males: 58.6 years old
--- Median age of females: 59.3 years old
- Total population: 31,825 people

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