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 (2023 ACS). This list covers the 56 counties in Montana that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPDIVERSITY SCOREVS 2000

01Daniels County, MTMT1,6122−67%

02Garfield County, MTMT1,1482+14%

03Liberty County, MTMT1,9572+61%

04Wibaux County, MTMT8852+10%

05Sweet Grass County, MTMT3,7622−50%

06Judith Basin County, MTMT2,1622+54%

07Fallon County, MTMT2,9593+28%

08Petroleum County, MTMT5483−6%

09McCone County, MTMT1,7203−21%

10Granite County, MTMT3,6583−3%

11Carter County, MTMT1,3834+101%

12Carbon County, MTMT11,4664−24%

13Prairie County, MTMT1,1125+119%

14Madison County, MTMT10,0265−15%

15Teton County, MTMT6,4965+37%

16Toole County, MTMT5,2115+16%

17Golden Valley County, MTMT8445+45%

18Fergus County, MTMT11,8255+80%

19Sheridan County, MTMT3,4365+48%

20Dawson County, MTMT8,6926+76%

21Broadwater County, MTMT8,4936+48%

22Beaverhead County, MTMT10,0436−14%

23Ravalli County, MTMT48,5827+16%

24Musselshell County, MTMT5,5828+69%

25Wheatland County, MTMT2,1008+137%

26Meagher County, MTMT2,1378+94%

27Jefferson County, MTMT13,3298+64%

28Flathead County, MTMT115,4299+66%

29Lincoln County, MTMT22,3289+91%

30Park County, MTMT18,21410+55%

31Custer County, MTMT12,03410+109%

32Richland County, MTMT11,37710+62%

33Stillwater County, MTMT9,44510+70%

34Treasure County, MTMT72810+102%

35Powder River County, MTMT1,78110+475%

36Gallatin County, MTMT128,74010+56%

37Lewis and Clark County, MTMT75,33111+90%

38Deer Lodge County, MTMT9,70911+95%

39Mineral County, MTMT5,18511+86%

40Silver Bow County, MTMT36,11811+38%

41Missoula County, MTMT123,51312+64%

42Chouteau County, MTMT5,86512+370%

43Powell County, MTMT7,15717+128%

44Yellowstone County, MTMT172,69217+47%

45Sanders County, MTMT14,06219+260%

46Phillips County, MTMT4,20320+361%

47Cascade County, MTMT85,02920+85%

48Valley County, MTMT7,38523+627%

49Pondera County, MTMT6,07226+725%

50Hill County, MTMT16,16736+616%

51Lake County, MTMT33,39245+375%

52Rosebud County, MTMT8,25354+421%

53Blaine County, MTMT6,86061+991%

54Glacier County, MTMT13,46363+608%

55Roosevelt County, MTMT10,24264+564%

56Big Horn County, MTMT12,75265+185%

SHOWING 1–56 OF 56

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

UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES