RANKING · 2020 CENSUS · 36 SHOWN OF 36

Fastest growing, Oregon counties · 2020

Oregon counties ranked by population growth from the 2010 census to 2020. 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 shrinking Most population gained Most population lost Most densely populated Most sparsely populated

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Deschutes County, OROR213,072+25.7%−52%

02Crook County, OROR27,564+17.9%−50%

03Polk County, OROR90,037+16.0%−38%

04Washington County, OROR611,708+13.3%−69%

05Jefferson County, OROR25,740+12.8%−67%

06Clackamas County, OROR426,280+12.1%−43%

07Benton County, OROR97,728+11.2%+8%

08Multnomah County, OROR795,391+10.9%−17%

09Clatsop County, OROR40,926+10.9%+56%

10Linn County, OROR132,843+10.2%−21%

11Jackson County, OROR221,795+9.9%−59%

12Marion County, OROR355,777+9.7%−61%

13Lincoln County, OROR50,636+9.5%−34%

14Morrow County, OROR12,602+9.1%−79%

15Lane County, OROR381,584+8.9%−37%

16Yamhill County, OROR110,024+8.6%−71%

17Tillamook County, OROR27,384+8.5%−32%

18Hood River County, OROR23,720+7.3%−65%

19Gilliam County, OROR1,971+6.6%−43%

20Columbia County, OROR54,091+6.6%−59%

21Josephine County, OROR87,867+6.5%−69%

22Sherman County, OROR2,051+5.9%+613%

23Wasco County, OROR26,310+5.8%−41%

24Umatilla County, OROR81,119+5.5%−71%

25Wallowa County, OROR7,595+5.5%+20%

26Curry County, OROR22,621+4.8%−48%

27Klamath County, OROR70,274+4.6%−57%

28Lake County, OROR8,187+3.4%+2%

29Baker County, OROR16,658+3.3%−64%

30Douglas County, OROR111,951+3.3%−46%

31Coos County, OROR63,992+3.0%−28%

32Union County, OROR25,900+1.7%−56%

33Harney County, OROR7,380+1.0%−87%

34Malheur County, OROR32,261+0.8%−96%

35Wheeler County, OROR1,472+0.7%−94%

36Grant County, OROR7,075-2.8%−373%

SHOWING 1–36 OF 36

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS