RANKING · 2024 ACS · 39 SHOWN OF 39

Most segregated, Montana counties

Montana counties ranked by the CensusEasy Segregation Score, the White vs non-White index of dissimilarity across census tracts (2024 ACS). Higher means residents are more sorted into separate neighborhoods. This list covers the 39 counties in Montana that qualify, ranked against each other statewide.

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RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

RANKPLACESTATEPOPSEGREGATION SCOREVS 2020

01Blaine County, MTMT6,86073−5%

02Rosebud County, MTMT8,25362−12%

03Glacier County, MTMT13,46361+16%

04Big Horn County, MTMT12,75248+11%

05Valley County, MTMT7,38546+72%

06Hill County, MTMT16,16746−13%

07Pondera County, MTMT6,07242−35%

08Roosevelt County, MTMT10,24236+14%

09Granite County, MTMT3,65831+184%

10Lake County, MTMT33,39225+5%

11Chouteau County, MTMT5,86524−33%

12Ravalli County, MTMT48,58224+16%

13Gallatin County, MTMT128,74023+2%

14Cascade County, MTMT85,02922−20%

15Yellowstone County, MTMT172,69222−14%

16Sanders County, MTMT14,06222−35%

17Richland County, MTMT11,37720+42%

18Sheridan County, MTMT3,43620+405%

19Teton County, MTMT6,49619+191%

20Flathead County, MTMT115,42918−14%

21Deer Lodge County, MTMT9,70917+93%

22Silver Bow County, MTMT36,11817−39%

23Custer County, MTMT12,03416+14%

24Carbon County, MTMT11,46615−24%

25Missoula County, MTMT123,51315−26%

26Lewis and Clark County, MTMT75,33114−14%

27Madison County, MTMT10,02613−38%

28Dawson County, MTMT8,69213−11%

29Lincoln County, MTMT22,32812−36%

30Toole County, MTMT5,21112−43%

31Fergus County, MTMT11,82511+2%

32Park County, MTMT18,21411−45%

33Broadwater County, MTMT8,4939+82%

34Jefferson County, MTMT13,3298−15%

35Powell County, MTMT7,1577−32%

36Stillwater County, MTMT9,4456−28%

37Beaverhead County, MTMT10,0435−53%

38Musselshell County, MTMT5,5824+101%

39Mineral County, MTMT5,1850−98%

SHOWING 1–39 OF 39

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES