RANKING · 2000 CENSUS · 36 SHOWN OF 36

Youngest by median age, Oregon counties · 2000

Oregon counties with the youngest median age (2000 ACS). This list covers the 36 counties in Oregon that qualify, ranked against each other statewide. The median across all 36 is 38.6.

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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 1990

01Benton County, OROR97,72831.1+5%

02Washington County, OROR611,70833.0+1%

03Morrow County, OROR12,60233.3−1%

04Marion County, OROR355,77733.70%

05Malheur County, OROR32,26134.00%

06Yamhill County, OROR110,02434.1+4%

07Umatilla County, OROR81,11934.6+4%

08Jefferson County, OROR25,74034.8+10%

09Multnomah County, OROR795,39134.9+2%

10Hood River County, OROR23,72035.3+3%

11Polk County, OROR90,03736.5+7%

12Lane County, OROR381,58436.6+8%

13Linn County, OROR132,84337.4+8%

14Clackamas County, OROR426,28037.5+7%

15Columbia County, OROR54,09137.7+8%

16Union County, OROR25,90037.7+11%

17Klamath County, OROR70,27438.2+10%

18Deschutes County, OROR213,07238.3+7%

19Crook County, OROR27,56438.6+8%

20Jackson County, OROR221,79539.2+7%

21Harney County, OROR7,38039.8+12%

22Wasco County, OROR26,31039.9+8%

23Clatsop County, OROR40,92640.0+12%

24Douglas County, OROR111,95141.2+15%

25Grant County, OROR7,07541.7+15%

26Sherman County, OROR2,05141.8+11%

27Baker County, OROR16,65842.7+12%

28Lake County, OROR8,18742.7+18%

29Gilliam County, OROR1,97142.8+13%

30Coos County, OROR63,99243.1+15%

31Josephine County, OROR87,86743.1+8%

32Tillamook County, OROR27,38443.5+6%

33Lincoln County, OROR50,63644.1+11%

34Wallowa County, OROR7,59544.4+18%

35Wheeler County, OROR1,47248.1+11%

36Curry County, OROR22,62148.8+11%

SHOWING 1–36 OF 36

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