RANKING · 2024 ACS · 56 SHOWN OF 56

Most racially diverse, Montana counties

Montana counties ranked by the CensusEasy Diversity Score (0 to 100), the chance two random residents are of a different race or ethnicity (2024 ACS). This list covers the 56 counties in Montana that qualify, ranked against each other statewide. The median across all 56 is 25.

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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 1990

01Rosebud County, MTMT8,25369+28%

02Blaine County, MTMT6,86066+8%

03Lake County, MTMT33,39261+38%

04Roosevelt County, MTMT10,24261−5%

05Glacier County, MTMT13,46358−7%

06Big Horn County, MTMT12,75258−10%

07Hill County, MTMT16,16758+65%

08Chouteau County, MTMT5,86548+317%

09Pondera County, MTMT6,07243+66%

10Phillips County, MTMT4,20339+108%

11Toole County, MTMT5,21139+705%

12Cascade County, MTMT85,02939+104%

13Yellowstone County, MTMT172,69236+143%

14Valley County, MTMT7,38534+47%

15Missoula County, MTMT123,51333+195%

16Musselshell County, MTMT5,58230+333%

17Powell County, MTMT7,15730+93%

18Richland County, MTMT11,37729+244%

19Gallatin County, MTMT128,74028+193%

20Prairie County, MTMT1,11227+654%

21Sheridan County, MTMT3,43627+428%

22Sanders County, MTMT14,06227+44%

23Ravalli County, MTMT48,58226+318%

24Lewis and Clark County, MTMT75,33126+163%

25Mineral County, MTMT5,18525+149%

26Broadwater County, MTMT8,49325+327%

27Carter County, MTMT1,38325+665%

28Custer County, MTMT12,03425+244%

29Beaverhead County, MTMT10,04325+326%

30Silver Bow County, MTMT36,11825+164%

31Wibaux County, MTMT88525+1086%

32Deer Lodge County, MTMT9,70925+153%

33Powder River County, MTMT1,78125+165%

34Judith Basin County, MTMT2,16223+917%

35Granite County, MTMT3,65823+563%

36Lincoln County, MTMT22,32823+172%

37Flathead County, MTMT115,42923+193%

38Carbon County, MTMT11,46623+501%

39Daniels County, MTMT1,61223+1368%

40Golden Valley County, MTMT84423+538%

41Madison County, MTMT10,02622+387%

42Dawson County, MTMT8,69222+418%

43Jefferson County, MTMT13,32922+183%

44Sweet Grass County, MTMT3,76221+808%

45Park County, MTMT18,21421+182%

46Teton County, MTMT6,49620+312%

47Stillwater County, MTMT9,44519+131%

48McCone County, MTMT1,72018+485%

49Fallon County, MTMT2,95918+706%

50Fergus County, MTMT11,82518+306%

51Treasure County, MTMT72816+156%

52Liberty County, MTMT1,95716+656%

53Meagher County, MTMT2,13714+117%

54Wheatland County, MTMT2,10014+111%

55Garfield County, MTMT1,1488+408%

56Petroleum County, MTMT5483−3%

SHOWING 1–56 OF 56

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

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES