RANKING · 2024 ACS · 36 SHOWN OF 36

Youngest by median age, Oregon counties

Oregon counties with the youngest median age (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: Malheur County, OR, up 5 places to #2.

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

OregonAll states All rankings

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

01Benton County, OROR97,72834.5+11%

02▲5Malheur County, OROR32,26136.1+6%

03▼1Morrow County, OROR12,60236.3+9%

04Umatilla County, OROR81,11936.9+7%

05▼2Marion County, OROR355,77737.5+11%

06▲2Polk County, OROR90,03737.8+4%

07▼2Washington County, OROR611,70838.1+15%

08▼2Multnomah County, OROR795,39138.7+11%

09Yamhill County, OROR110,02439.7+16%

10Union County, OROR25,90040.0+6%

11▲1Linn County, OROR132,84340.1+7%

12▲1Lane County, OROR381,58440.3+10%

13▼2Hood River County, OROR23,72040.7+15%

14▲2Wasco County, OROR26,31041.0+3%

15▲3Klamath County, OROR70,27441.3+8%

16▼2Jefferson County, OROR25,74041.5+19%

17▼2Clackamas County, OROR426,28042.3+13%

18▲1Jackson County, OROR221,79542.8+9%

19▼2Deschutes County, OROR213,07242.9+12%

20Columbia County, OROR54,09143.3+15%

21▲2Sherman County, OROR2,05144.7+7%

22▲3Lake County, OROR8,18745.7+7%

23▼1Harney County, OROR7,38045.9+15%

24▼3Clatsop County, OROR40,92646.0+15%

25▲2Douglas County, OROR111,95146.5+13%

26▲2Baker County, OROR16,65847.0+10%

27▼3Crook County, OROR27,56447.2+22%

28▲1Josephine County, OROR87,86747.3+10%

29▲1Coos County, OROR63,99248.6+13%

30▲1Tillamook County, OROR27,38449.0+13%

31▲2Wallowa County, OROR7,59549.7+12%

32▼6Gilliam County, OROR1,97150.1+17%

33▼1Grant County, OROR7,07550.4+21%

34Lincoln County, OROR50,63652.7+20%

35▲1Curry County, OROR22,62157.7+18%

36▼1Wheeler County, OROR1,47259.3+23%

SHOWING 1–36 OF 36

Download CSV (full list, 36 rows)

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