RANKING · 1990 CENSUS · 36 SHOWN OF 36

Least racially diverse, Oregon counties · 1990

Oregon counties with the lowest CensusEasy Diversity Score, where most residents share the same 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 –

01Wheeler County, OROR1,4724–

02Wallowa County, OROR7,5956–

03Sherman County, OROR2,0516–

04Baker County, OROR16,6587–

05Gilliam County, OROR1,9719–

06Tillamook County, OROR27,3849–

07Grant County, OROR7,0759–

08Deschutes County, OROR213,0729–

09Union County, OROR25,90010–

10Linn County, OROR132,84311–

11Crook County, OROR27,56411–

12Columbia County, OROR54,09111–

13Clatsop County, OROR40,92612–

14Douglas County, OROR111,95112–

15Josephine County, OROR87,86712–

16Clackamas County, OROR426,28012–

17Curry County, OROR22,62112–

18Lincoln County, OROR50,63613–

19Coos County, OROR63,99215–

20Lake County, OROR8,18715–

21Lane County, OROR381,58415–

22Jackson County, OROR221,79516–

23Harney County, OROR7,38017–

24Polk County, OROR90,03721–

25Benton County, OROR97,72822–

26Yamhill County, OROR110,02422–

27Washington County, OROR611,70823–

28Wasco County, OROR26,31023–

29Klamath County, OROR70,27424–

30Marion County, OROR355,77727–

31Morrow County, OROR12,60228–

32Umatilla County, OROR81,11930–

33Multnomah County, OROR795,39133–

34Hood River County, OROR23,72041–

35Malheur County, OROR32,26148–

36Jefferson County, OROR25,74058–

SHOWING 1–36 OF 36

Download CSV (full list, 36 rows)How this score is calculated

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