RANKING · 1990 CENSUS · 36 SHOWN OF 36

Most racially diverse, Oregon counties · 1990

Oregon counties ranked by the CensusEasy Diversity Score (0 to 100), the chance two random residents are of a different race or ethnicity (1990 ACS). This list covers the 36 counties in Oregon that qualify, ranked against each other statewide. The median across all 36 is 15.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

RANKPLACESTATEPOPDIVERSITY SCOREVS –

01Jefferson County, OROR25,74058–

02Malheur County, OROR32,26148–

03Hood River County, OROR23,72041–

04Multnomah County, OROR795,39133–

05Umatilla County, OROR81,11930–

06Morrow County, OROR12,60228–

07Marion County, OROR355,77727–

08Klamath County, OROR70,27424–

09Wasco County, OROR26,31023–

10Washington County, OROR611,70823–

11Yamhill County, OROR110,02422–

12Benton County, OROR97,72822–

13Polk County, OROR90,03721–

14Harney County, OROR7,38017–

15Jackson County, OROR221,79516–

16Lane County, OROR381,58415–

17Lake County, OROR8,18715–

18Coos County, OROR63,99215–

19Lincoln County, OROR50,63613–

20Curry County, OROR22,62112–

21Clackamas County, OROR426,28012–

22Josephine County, OROR87,86712–

23Douglas County, OROR111,95112–

24Clatsop County, OROR40,92612–

25Columbia County, OROR54,09111–

26Crook County, OROR27,56411–

27Linn County, OROR132,84311–

28Union County, OROR25,90010–

29Deschutes County, OROR213,0729–

30Grant County, OROR7,0759–

31Tillamook County, OROR27,3849–

32Gilliam County, OROR1,9719–

33Baker County, OROR16,6587–

34Sherman County, OROR2,0516–

35Wallowa County, OROR7,5956–

36Wheeler County, OROR1,4724–

SHOWING 1–36 OF 36

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