RANKING · 1990 CENSUS · 44 SHOWN OF 44

Most racially diverse, Idaho counties · 1990

Idaho 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 44 counties in Idaho that qualify, ranked against each other statewide. The median across all 44 is 16.

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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 –

01Owyhee County, IDID12,66145–

02Minidoka County, IDID22,91141–

03Bingham County, IDID51,15336–

04Power County, IDID8,24635–

05Canyon County, IDID275,12333–

06Cassia County, IDID26,39732–

07Elmore County, IDID29,46531–

08Washington County, IDID11,58328–

09Clark County, IDID78324–

10Payette County, IDID27,82423–

11Benewah County, IDID10,50822–

12Gooding County, IDID16,44620–

13Teton County, IDID13,25419–

14Bannock County, IDID91,59119–

15Twin Falls County, IDID97,53917–

16Jefferson County, IDID35,29717–

17Fremont County, IDID14,20817–

18Gem County, IDID21,77317–

19Lewis County, IDID3,70417–

20Nez Perce County, IDID42,90516–

21Jerome County, IDID26,36216–

22Boundary County, IDID13,99716–

23Bonneville County, IDID135,77115–

24Lincoln County, IDID5,60314–

25Madison County, IDID55,17212–

26Ada County, IDID546,14112–

27Latah County, IDID41,84211–

28Clearwater County, IDID9,11811–

29Shoshone County, IDID14,13010–

30Butte County, IDID2,78310–

31Blaine County, IDID25,51710–

32Idaho County, IDID17,8749–

33Custer County, IDID4,6368–

34Valley County, IDID12,8318–

35Kootenai County, IDID191,8648–

36Franklin County, IDID15,8898–

37Bonner County, IDID54,4207–

38Boise County, IDID8,5457–

39Lemhi County, IDID8,4747–

40Adams County, IDID5,0137–

41Caribou County, IDID7,2526–

42Bear Lake County, IDID6,7276–

43Oneida County, IDID5,0855–

44Camas County, IDID1,3163–

SHOWING 1–44 OF 44

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