RANKING · 2025 ESTIMATES · 36 SHOWN OF 36

Fastest shrinking, Oregon counties

Oregon counties with the steepest population decline from the 2020 census to 2025. This list covers the 36 counties in Oregon that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

RELATEDLargest by population Fastest growing Most population gained Most population lost Most densely populated Most sparsely populated

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Curry County, OROR22,621-3.5%−138%

02Multnomah County, OROR795,391-2.5%−119%

03Grant County, OROR7,075-2.2%−309%

04Harney County, OROR7,380-1.5%−120%

05Coos County, OROR63,992-1.4%−135%

06Wasco County, OROR26,310-1.3%−114%

07Gilliam County, OROR1,971-1.2%−110%

08Union County, OROR25,900-1.1%−129%

09Hood River County, OROR23,720-1.1%−105%

10Jackson County, OROR221,795-0.7%−103%

11Lane County, OROR381,584-0.4%−103%

12Clatsop County, OROR40,926-0.4%−105%

13Josephine County, OROR87,867-0.3%−101%

14Baker County, OROR16,658-0.1%−101%

15Tillamook County, OROR27,384-0.0%−100%

16Lake County, OROR8,187+0.3%−90%

17Lincoln County, OROR50,636+0.5%−97%

18Douglas County, OROR111,951+0.7%−89%

19Clackamas County, OROR426,280+1.2%−95%

20Klamath County, OROR70,274+1.2%−88%

21Umatilla County, OROR81,119+1.3%−93%

22Wheeler County, OROR1,472+1.4%−87%

23Washington County, OROR611,708+1.9%−96%

24Yamhill County, OROR110,024+2.1%−93%

25Malheur County, OROR32,261+2.2%−90%

26Benton County, OROR97,728+2.7%−74%

27Wallowa County, OROR7,595+2.8%−39%

28Marion County, OROR355,777+2.8%−88%

29Columbia County, OROR54,091+2.9%−82%

30Polk County, OROR90,037+3.0%−89%

31Linn County, OROR132,843+3.3%−75%

32Morrow County, OROR12,602+3.4%−92%

33Jefferson County, OROR25,740+5.1%−87%

34Deschutes County, OROR213,072+7.5%−86%

35Sherman County, OROR2,051+9.7%+1060%

36Crook County, OROR27,564+11.4%−68%

SHOWING 1–36 OF 36

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU POPULATION ESTIMATES