RANKING · 2000 CENSUS · 36 SHOWN OF 36

Largest by population, Oregon counties · 2000

The most populous us counties as of the 2023 estimates. This list covers the 36 counties in Oregon that qualify, ranked against each other statewide.

OregonAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

RELATEDFastest growing Fastest shrinking Most densely populated Most sparsely populated Best broadband access Worst broadband access

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPTOTAL POPULATIONVS 2000

01Multnomah County, OROR795,391660,486+0%

02Washington County, OROR611,708445,342+0%

03Clackamas County, OROR426,280338,391+0%

04Lane County, OROR381,584322,959+0%

05Marion County, OROR355,777284,834+0%

06Jackson County, OROR221,795181,269+0%

07Deschutes County, OROR213,072115,367+0%

08Linn County, OROR132,843103,069+0%

09Douglas County, OROR111,951100,399+0%

10Yamhill County, OROR110,02484,992+0%

11Benton County, OROR97,72878,153+0%

12Josephine County, OROR87,86775,726+0%

13Umatilla County, OROR81,11970,548+0%

14Klamath County, OROR70,27463,775+0%

15Coos County, OROR63,99262,779+0%

16Polk County, OROR90,03762,380+0%

17Lincoln County, OROR50,63644,479+0%

18Columbia County, OROR54,09143,560+0%

19Clatsop County, OROR40,92635,630+0%

20Malheur County, OROR32,26131,615+0%

21Union County, OROR25,90024,530+0%

22Tillamook County, OROR27,38424,262+0%

23Wasco County, OROR26,31023,791+0%

24Curry County, OROR22,62121,137+0%

25Hood River County, OROR23,72020,411+0%

26Crook County, OROR27,56419,182+0%

27Jefferson County, OROR25,74019,009+0%

28Baker County, OROR16,65816,741+0%

29Morrow County, OROR12,60210,995+0%

30Grant County, OROR7,0757,935+0%

31Harney County, OROR7,3807,609+0%

32Lake County, OROR8,1877,422+0%

33Wallowa County, OROR7,5957,226+0%

34Sherman County, OROR2,0511,934+0%

35Gilliam County, OROR1,9711,915+0%

36Wheeler County, OROR1,4721,547+0%

SHOWING 1–36 OF 36

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES