RANKING · 1990 CENSUS · 36 SHOWN OF 36

Youngest by median age, Oregon counties · 1990

Oregon counties with the youngest median age (2023 ACS). This list covers the 36 counties in Oregon that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDOldest by median age Most foreign-born residents Highest uninsured rate Most women Most men Highest disability rate

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 2000

01Benton County, OROR97,72829.6−5%

02Jefferson County, OROR25,74031.7−9%

03Washington County, OROR611,70832.7−1%

04Yamhill County, OROR110,02432.8−4%

05Umatilla County, OROR81,11933.2−4%

06Morrow County, OROR12,60233.6+1%

07Marion County, OROR355,77733.7+0%

08Malheur County, OROR32,26133.9−0%

09Lane County, OROR381,58433.9−7%

10Union County, OROR25,90034.0−10%

11Hood River County, OROR23,72034.2−3%

12Multnomah County, OROR795,39134.2−2%

13Polk County, OROR90,03734.3−6%

14Columbia County, OROR54,09134.8−8%

15Linn County, OROR132,84334.8−7%

16Klamath County, OROR70,27434.8−9%

17Clackamas County, OROR426,28035.2−6%

18Harney County, OROR7,38035.7−10%

19Crook County, OROR27,56435.7−7%

20Clatsop County, OROR40,92635.9−10%

21Deschutes County, OROR213,07235.9−6%

22Douglas County, OROR111,95136.0−13%

23Lake County, OROR8,18736.3−15%

24Grant County, OROR7,07536.3−13%

25Jackson County, OROR221,79536.6−7%

26Wasco County, OROR26,31037.0−7%

27Wallowa County, OROR7,59537.6−15%

28Coos County, OROR63,99237.6−13%

29Sherman County, OROR2,05137.8−10%

30Gilliam County, OROR1,97137.8−12%

31Baker County, OROR16,65838.0−11%

32Lincoln County, OROR50,63639.6−10%

33Josephine County, OROR87,86740.0−7%

34Tillamook County, OROR27,38440.9−6%

35Wheeler County, OROR1,47243.4−10%

36Curry County, OROR22,62143.9−10%

SHOWING 1–36 OF 36

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES