RANKING · 2000 CENSUS · 36 SHOWN OF 36

Most population lost, Oregon counties · 2000

Oregon counties that lost the most residents from the 1990 census to 2000, by raw count of people rather than percentage. This list covers the 36 counties in Oregon that qualify, ranked against each other statewide. The median across all 36 is +5,577.

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SAME RANKING BYCities States Metros

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

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION CHANGEVS –

01Sherman County, OROR2,051+16–

02Grant County, OROR7,075+82–

03Wheeler County, OROR1,472+151–

04Gilliam County, OROR1,971+198–

05Lake County, OROR8,187+236–

06Wallowa County, OROR7,595+315–

07Harney County, OROR7,380+549–

08Union County, OROR25,900+932–

09Baker County, OROR16,658+1,424–

10Curry County, OROR22,621+1,810–

11Wasco County, OROR26,310+2,108–

12Clatsop County, OROR40,926+2,329–

13Coos County, OROR63,992+2,506–

14Tillamook County, OROR27,384+2,692–

15Morrow County, OROR12,602+3,370–

16Hood River County, OROR23,720+3,508–

17Crook County, OROR27,564+5,071–

18Jefferson County, OROR25,740+5,333–

19Malheur County, OROR32,261+5,577–

20Lincoln County, OROR50,636+5,590–

21Douglas County, OROR111,951+5,750–

22Columbia County, OROR54,091+6,003–

23Klamath County, OROR70,274+6,073–

24Benton County, OROR97,728+7,342–

25Umatilla County, OROR81,119+11,299–

26Linn County, OROR132,843+11,842–

27Polk County, OROR90,037+12,839–

28Josephine County, OROR87,867+13,077–

29Yamhill County, OROR110,024+19,441–

30Jackson County, OROR221,795+34,880–

31Lane County, OROR381,584+40,047–

32Deschutes County, OROR213,072+40,409–

33Marion County, OROR355,777+56,351–

34Clackamas County, OROR426,280+59,541–

35Multnomah County, OROR795,391+76,599–

36Washington County, OROR611,708+133,788–

SHOWING 1–36 OF 36

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS