RANKING · 2010 CENSUS · 36 SHOWN OF 36

Most population gained, Oregon counties · 2010

Oregon counties that added the most residents from the 2000 census to 2010, by raw count of people rather than percentage. This list covers the 36 counties in Oregon that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

01Washington County, OROR611,708+84,368−37%

02Multnomah County, OROR795,391+74,848−2%

03Deschutes County, OROR213,072+42,366+5%

04Clackamas County, OROR426,280+37,601−37%

05Marion County, OROR355,777+30,501−46%

06Lane County, OROR381,584+28,756−28%

07Jackson County, OROR221,795+21,937−37%

08Yamhill County, OROR110,024+14,201−27%

09Linn County, OROR132,843+13,603+15%

10Polk County, OROR90,037+13,023+1%

11Benton County, OROR97,728+7,426+1%

12Douglas County, OROR111,951+7,268+26%

13Josephine County, OROR87,867+6,987−47%

14Columbia County, OROR54,091+5,791−4%

15Umatilla County, OROR81,119+5,341−53%

16Jefferson County, OROR25,740+2,711−49%

17Klamath County, OROR70,274+2,605−57%

18Hood River County, OROR23,720+1,935−45%

19Crook County, OROR27,564+1,796−65%

20Lincoln County, OROR50,636+1,555−72%

21Wasco County, OROR26,310+1,422−33%

22Clatsop County, OROR40,926+1,409−40%

23Curry County, OROR22,621+1,227−32%

24Union County, OROR25,900+1,218+31%

25Tillamook County, OROR27,384+988−63%

26Lake County, OROR8,187+473+100%

27Coos County, OROR63,992+264−89%

28Morrow County, OROR12,602+178−95%

29Gilliam County, OROR1,971-44−122%

30Wheeler County, OROR1,472-106−170%

31Sherman County, OROR2,051-169−1156%

32Harney County, OROR7,380-187−134%

33Wallowa County, OROR7,595-218−169%

34Malheur County, OROR32,261-302−105%

35Grant County, OROR7,075-490−698%

36Baker County, OROR16,658-607−143%

SHOWING 1–36 OF 36

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