RANKING · 2020 CENSUS · 36 SHOWN OF 36

Oldest by median age, Oregon counties · 2020

Oregon counties ranked by median age of residents (2020 ACS). This list covers the 36 counties in Oregon that qualify, ranked against each other statewide. The median across all 36 is 43.1.

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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

01Curry County, OROR22,62157.5+18%

02Wheeler County, OROR1,47255.9+16%

03Lincoln County, OROR50,63652.9+20%

04Wallowa County, OROR7,59552.8+19%

05Grant County, OROR7,07550.8+22%

06Tillamook County, OROR27,38449.2+13%

07Coos County, OROR63,99249.1+14%

08Baker County, OROR16,65848.4+13%

09Josephine County, OROR87,86748.4+12%

10Douglas County, OROR111,95148.1+17%

11Gilliam County, OROR1,97148.0+12%

12Crook County, OROR27,56447.3+23%

13Lake County, OROR8,18747.3+11%

14Sherman County, OROR2,05146.3+11%

15Harney County, OROR7,38044.9+13%

16Clatsop County, OROR40,92644.6+12%

17Columbia County, OROR54,09143.4+15%

18Jackson County, OROR221,79543.1+10%

19Klamath County, OROR70,27443.0+13%

20Deschutes County, OROR213,07242.5+11%

21Wasco County, OROR26,31042.3+6%

22Clackamas County, OROR426,28041.7+11%

23Jefferson County, OROR25,74041.5+19%

24Lane County, OROR381,58440.6+11%

25Linn County, OROR132,84340.4+8%

26Hood River County, OROR23,72040.2+14%

27Union County, OROR25,90040.1+6%

28Yamhill County, OROR110,02439.5+16%

29Polk County, OROR90,03738.6+6%

30Malheur County, OROR32,26138.0+12%

31Multnomah County, OROR795,39137.7+8%

32Umatilla County, OROR81,11937.2+8%

33Washington County, OROR611,70837.2+13%

34Marion County, OROR355,77737.1+10%

35Morrow County, OROR12,60236.9+11%

36Benton County, OROR97,72833.2+7%

SHOWING 1–36 OF 36

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS