RANKING · 2024 ACS · 36 SHOWN OF 36

Oldest by median age, Oregon counties

Oregon counties ranked by median age of residents (2024 ACS). This list covers the 36 counties in Oregon that qualify, ranked against each other statewide. The median across all 36 is 42.9. Biggest climber in the top 100 since 2020: Gilliam County, OR, up 6 places to #5.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 2000

01▲1Wheeler County, OROR1,47259.3+23%

02▼1Curry County, OROR22,62157.7+18%

03Lincoln County, OROR50,63652.7+20%

04▲1Grant County, OROR7,07550.4+21%

05▲6Gilliam County, OROR1,97150.1+17%

06▼2Wallowa County, OROR7,59549.7+12%

07▼1Tillamook County, OROR27,38449.0+13%

08▼1Coos County, OROR63,99248.6+13%

09Josephine County, OROR87,86747.3+10%

10▲2Crook County, OROR27,56447.2+22%

11▼3Baker County, OROR16,65847.0+10%

12▼2Douglas County, OROR111,95146.5+13%

13▲3Clatsop County, OROR40,92646.0+15%

14▲1Harney County, OROR7,38045.9+15%

15▼2Lake County, OROR8,18745.7+7%

16▼2Sherman County, OROR2,05144.7+7%

17Columbia County, OROR54,09143.3+15%

18▲2Deschutes County, OROR213,07242.9+12%

19▼1Jackson County, OROR221,79542.8+9%

20▲2Clackamas County, OROR426,28042.3+13%

21▲2Jefferson County, OROR25,74041.5+19%

22▼3Klamath County, OROR70,27441.3+8%

23▼2Wasco County, OROR26,31041.0+3%

24▲2Hood River County, OROR23,72040.7+15%

25▼1Lane County, OROR381,58440.3+10%

26▼1Linn County, OROR132,84340.1+7%

27Union County, OROR25,90040.0+6%

28Yamhill County, OROR110,02439.7+16%

29▲2Multnomah County, OROR795,39138.7+11%

30▲3Washington County, OROR611,70838.1+15%

31▼2Polk County, OROR90,03737.8+4%

32▲2Marion County, OROR355,77737.5+11%

33▼1Umatilla County, OROR81,11936.9+7%

34▲1Morrow County, OROR12,60236.3+9%

35▼5Malheur County, OROR32,26136.1+6%

36Benton County, OROR97,72834.5+11%

SHOWING 1–36 OF 36

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES