RANKING · 2020 CENSUS · 36 SHOWN OF 36

Youngest by median age, Oregon counties · 2020

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

Flip the list · Oldest by median age, US counties →

OregonAll states All rankings

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, OROR97,72833.2+7%

02Morrow County, OROR12,60236.9+11%

03Marion County, OROR355,77737.1+10%

04Umatilla County, OROR81,11937.2+8%

05Washington County, OROR611,70837.2+13%

06Multnomah County, OROR795,39137.7+8%

07Malheur County, OROR32,26138.0+12%

08Polk County, OROR90,03738.6+6%

09Yamhill County, OROR110,02439.5+16%

10Union County, OROR25,90040.1+6%

11Hood River County, OROR23,72040.2+14%

12Linn County, OROR132,84340.4+8%

13Lane County, OROR381,58440.6+11%

14Jefferson County, OROR25,74041.5+19%

15Clackamas County, OROR426,28041.7+11%

16Wasco County, OROR26,31042.3+6%

17Deschutes County, OROR213,07242.5+11%

18Klamath County, OROR70,27443.0+13%

19Jackson County, OROR221,79543.1+10%

20Columbia County, OROR54,09143.4+15%

21Clatsop County, OROR40,92644.6+12%

22Harney County, OROR7,38044.9+13%

23Sherman County, OROR2,05146.3+11%

24Crook County, OROR27,56447.3+23%

25Lake County, OROR8,18747.3+11%

26Gilliam County, OROR1,97148.0+12%

27Douglas County, OROR111,95148.1+17%

28Baker County, OROR16,65848.4+13%

29Josephine County, OROR87,86748.4+12%

30Coos County, OROR63,99249.1+14%

31Tillamook County, OROR27,38449.2+13%

32Grant County, OROR7,07550.8+22%

33Wallowa County, OROR7,59552.8+19%

34Lincoln County, OROR50,63652.9+20%

35Wheeler County, OROR1,47255.9+16%

36Curry County, OROR22,62157.5+18%

SHOWING 1–36 OF 36

Download CSV (full list, 36 rows)

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