RANKING · 2020 CENSUS · 39 SHOWN OF 39

Most segregated, Montana counties · 2020

Montana counties ranked by the CensusEasy Segregation Score, the White vs non-White index of dissimilarity across census tracts (2020 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. The median across all 39 is 20.

Flip the list · Least segregated, US counties →

MontanaAll states All rankings

SAME RANKING BYMetros

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

RANKPLACESTATEPOPSEGREGATION SCOREVS –

01Blaine County, MTMT6,86077–

02Rosebud County, MTMT8,25370–

03Pondera County, MTMT6,07264–

04Hill County, MTMT16,16753–

05Glacier County, MTMT13,46352–

06Big Horn County, MTMT12,75244–

07Chouteau County, MTMT5,86536–

08Sanders County, MTMT14,06233–

09Roosevelt County, MTMT10,24231–

10Silver Bow County, MTMT36,11828–

11Cascade County, MTMT85,02928–

12Valley County, MTMT7,38527–

13Yellowstone County, MTMT172,69225–

14Lake County, MTMT33,39224–

15Gallatin County, MTMT128,74022–

16Madison County, MTMT10,02622–

17Mineral County, MTMT5,18522–

18Toole County, MTMT5,21121–

19Flathead County, MTMT115,42921–

20Ravalli County, MTMT48,58220–

21Park County, MTMT18,21420–

22Missoula County, MTMT123,51320–

23Carbon County, MTMT11,46619–

24Lincoln County, MTMT22,32819–

25Lewis and Clark County, MTMT75,33117–

26Dawson County, MTMT8,69214–

27Richland County, MTMT11,37714–

28Custer County, MTMT12,03414–

29Fergus County, MTMT11,82511–

30Granite County, MTMT3,65811–

31Beaverhead County, MTMT10,04311–

32Powell County, MTMT7,15710–

33Jefferson County, MTMT13,3299–

34Deer Lodge County, MTMT9,7099–

35Stillwater County, MTMT9,4459–

36Teton County, MTMT6,4966–

37Broadwater County, MTMT8,4935–

38Sheridan County, MTMT3,4364–

39Musselshell County, MTMT5,5822–

SHOWING 1–39 OF 39

Download CSV (full list, 39 rows)How this score is calculated

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