RANKING · 1990 CENSUS · 56 SHOWN OF 56

Most racially diverse, Montana counties · 1990

Montana 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 56 counties in Montana that qualify, ranked against each other statewide. The median across all 56 is 8.

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MontanaAll states All rankings

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 –

01Big Horn County, MTMT12,75265–

02Roosevelt County, MTMT10,24265–

03Glacier County, MTMT13,46363–

04Blaine County, MTMT6,86061–

05Rosebud County, MTMT8,25354–

06Lake County, MTMT33,39244–

07Hill County, MTMT16,16735–

08Pondera County, MTMT6,07226–

09Valley County, MTMT7,38523–

10Cascade County, MTMT85,02919–

11Phillips County, MTMT4,20319–

12Sanders County, MTMT14,06218–

13Powell County, MTMT7,15715–

14Yellowstone County, MTMT172,69215–

15Chouteau County, MTMT5,86512–

16Missoula County, MTMT123,51311–

17Mineral County, MTMT5,18510–

18Lewis and Clark County, MTMT75,33110–

19Deer Lodge County, MTMT9,70910–

20Gallatin County, MTMT128,74010–

21Silver Bow County, MTMT36,1189–

22Powder River County, MTMT1,7819–

23Lincoln County, MTMT22,3289–

24Richland County, MTMT11,3778–

25Stillwater County, MTMT9,4458–

26Flathead County, MTMT115,4298–

27Jefferson County, MTMT13,3298–

28Park County, MTMT18,2148–

29Custer County, MTMT12,0347–

30Musselshell County, MTMT5,5827–

31Wheatland County, MTMT2,1007–

32Meagher County, MTMT2,1377–

33Treasure County, MTMT7286–

34Ravalli County, MTMT48,5826–

35Broadwater County, MTMT8,4936–

36Beaverhead County, MTMT10,0436–

37Sheridan County, MTMT3,4365–

38Teton County, MTMT6,4965–

39Toole County, MTMT5,2115–

40Madison County, MTMT10,0265–

41Fergus County, MTMT11,8254–

42Dawson County, MTMT8,6924–

43Carbon County, MTMT11,4664–

44Prairie County, MTMT1,1124–

45Golden Valley County, MTMT8444–

46Granite County, MTMT3,6583–

47Carter County, MTMT1,3833–

48McCone County, MTMT1,7203–

49Petroleum County, MTMT5483–

50Sweet Grass County, MTMT3,7622–

51Judith Basin County, MTMT2,1622–

52Fallon County, MTMT2,9592–

53Wibaux County, MTMT8852–

54Liberty County, MTMT1,9572–

55Garfield County, MTMT1,1482–

56Daniels County, MTMT1,6122–

SHOWING 1–56 OF 56

Download CSV (full list, 56 rows)How this score is calculated

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