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%−12.9 pts

02Multnomah County, OROR795,391-2.5%−15.6 pts

03Grant County, OROR7,075-2.2%−3.2 pts

04Harney County, OROR7,380-1.5%−9.3 pts

05Coos County, OROR63,992-1.4%−5.6 pts

06Wasco County, OROR26,310-1.3%−11.1 pts

07Gilliam County, OROR1,971-1.2%−12.7 pts

08Union County, OROR25,900-1.1%−5.1 pts

09Hood River County, OROR23,720-1.1%−21.8 pts

10Jackson County, OROR221,795-0.7%−24.5 pts

11Lane County, OROR381,584-0.4%−14.5 pts

12Clatsop County, OROR40,926-0.4%−7.3 pts

13Josephine County, OROR87,867-0.3%−21.1 pts

14Baker County, OROR16,658-0.1%−9.4 pts

15Tillamook County, OROR27,384-0.0%−12.5 pts

16Lake County, OROR8,187+0.3%−3.0 pts

17Lincoln County, OROR50,636+0.5%−13.9 pts

18Douglas County, OROR111,951+0.7%−5.4 pts

19Clackamas County, OROR426,280+1.2%−20.2 pts

20Klamath County, OROR70,274+1.2%−9.3 pts

21Umatilla County, OROR81,119+1.3%−17.8 pts

22Wheeler County, OROR1,472+1.4%−9.4 pts

23Washington County, OROR611,708+1.9%−41.1 pts

24Yamhill County, OROR110,024+2.1%−27.5 pts

25Malheur County, OROR32,261+2.2%−19.2 pts

26Benton County, OROR97,728+2.7%−7.7 pts

27Wallowa County, OROR7,595+2.8%−1.8 pts

28Marion County, OROR355,777+2.8%−21.8 pts

29Columbia County, OROR54,091+2.9%−13.1 pts

30Polk County, OROR90,037+3.0%−22.9 pts

31Linn County, OROR132,843+3.3%−9.7 pts

32Morrow County, OROR12,602+3.4%−40.8 pts

33Jefferson County, OROR25,740+5.1%−33.9 pts

34Deschutes County, OROR213,072+7.5%−46.4 pts

35Sherman County, OROR2,051+9.7%+8.8 pts

36Crook County, OROR27,564+11.4%−24.5 pts

SHOWING 1–36 OF 36

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU POPULATION ESTIMATES