RANKING · 1990 CENSUS · 56 SHOWN OF 56

Least racially diverse, Montana counties · 1990

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

01Daniels County, MTMT1,6122–

02Garfield County, MTMT1,1482–

03Liberty County, MTMT1,9572–

04Wibaux County, MTMT8852–

05Fallon County, MTMT2,9592–

06Judith Basin County, MTMT2,1622–

07Sweet Grass County, MTMT3,7622–

08Petroleum County, MTMT5483–

09McCone County, MTMT1,7203–

10Carter County, MTMT1,3833–

11Granite County, MTMT3,6583–

12Golden Valley County, MTMT8444–

13Prairie County, MTMT1,1124–

14Carbon County, MTMT11,4664–

15Dawson County, MTMT8,6924–

16Fergus County, MTMT11,8254–

17Madison County, MTMT10,0265–

18Toole County, MTMT5,2115–

19Teton County, MTMT6,4965–

20Sheridan County, MTMT3,4365–

21Beaverhead County, MTMT10,0436–

22Broadwater County, MTMT8,4936–

23Ravalli County, MTMT48,5826–

24Treasure County, MTMT7286–

25Meagher County, MTMT2,1377–

26Wheatland County, MTMT2,1007–

27Musselshell County, MTMT5,5827–

28Custer County, MTMT12,0347–

29Park County, MTMT18,2148–

30Jefferson County, MTMT13,3298–

31Flathead County, MTMT115,4298–

32Stillwater County, MTMT9,4458–

33Richland County, MTMT11,3778–

34Lincoln County, MTMT22,3289–

35Powder River County, MTMT1,7819–

36Silver Bow County, MTMT36,1189–

37Gallatin County, MTMT128,74010–

38Deer Lodge County, MTMT9,70910–

39Lewis and Clark County, MTMT75,33110–

40Mineral County, MTMT5,18510–

41Missoula County, MTMT123,51311–

42Chouteau County, MTMT5,86512–

43Yellowstone County, MTMT172,69215–

44Powell County, MTMT7,15715–

45Sanders County, MTMT14,06218–

46Phillips County, MTMT4,20319–

47Cascade County, MTMT85,02919–

48Valley County, MTMT7,38523–

49Pondera County, MTMT6,07226–

50Hill County, MTMT16,16735–

51Lake County, MTMT33,39244–

52Rosebud County, MTMT8,25354–

53Blaine County, MTMT6,86061–

54Glacier County, MTMT13,46363–

55Roosevelt County, MTMT10,24265–

56Big Horn County, MTMT12,75265–

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