RANKING · 2024 ACS · 56 SHOWN OF 56

Highest uninsured rate, Montana counties

Montana counties ranked by the share of residents without health insurance (2024 ACS). This list covers the 56 counties in Montana that qualify, ranked against each other statewide.

MontanaAll states All rankings

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

YEAR2020 2024

RANKPLACESTATEPOPUNINSUREDVS 2020

01Roosevelt County, MTMT10,24225.2%−7%

02Glacier County, MTMT13,46323.6%−36%

03Golden Valley County, MTMT84422.9%+129%

04Big Horn County, MTMT12,75221.7%−22%

05Blaine County, MTMT6,86018.3%+20%

06Wheatland County, MTMT2,10017.9%+30%

07Fergus County, MTMT11,82516.2%+50%

08Rosebud County, MTMT8,25316.2%−2%

09Lincoln County, MTMT22,32814.9%+57%

10Lake County, MTMT33,39214.5%+7%

11Sanders County, MTMT14,06213.7%+41%

12Ravalli County, MTMT48,58210.5%+11%

13Sweet Grass County, MTMT3,76210.2%+62%

14Musselshell County, MTMT5,58210.1%+38%

15Flathead County, MTMT115,42910.0%+11%

16Garfield County, MTMT1,1489.8%−34%

17Mineral County, MTMT5,1859.1%+11%

18Granite County, MTMT3,6588.5%+27%

19Hill County, MTMT16,1678.3%+57%

20Toole County, MTMT5,2118.3%−25%

21Carbon County, MTMT11,4668.2%+44%

22Pondera County, MTMT6,0728.2%+6%

23Park County, MTMT18,2148.1%−21%

24Custer County, MTMT12,0347.7%+22%

25Yellowstone County, MTMT172,6927.7%+26%

26Phillips County, MTMT4,2037.6%−37%

27Powder River County, MTMT1,7817.6%−32%

28Broadwater County, MTMT8,4937.5%−24%

29Carter County, MTMT1,3837.5%−55%

30Sheridan County, MTMT3,4367.3%−14%

31Madison County, MTMT10,0267.1%−21%

32Cascade County, MTMT85,0297.0%−4%

33Gallatin County, MTMT128,7406.9%−7%

34Judith Basin County, MTMT2,1626.8%+0%

35Petroleum County, MTMT5486.7%+20%

36Dawson County, MTMT8,6926.6%+94%

37Wibaux County, MTMT8856.5%−19%

38Powell County, MTMT7,1576.4%−12%

39Valley County, MTMT7,3856.4%−33%

40Missoula County, MTMT123,5136.1%−6%

41Silver Bow County, MTMT36,1186.0%−5%

42Jefferson County, MTMT13,3295.8%−3%

43Chouteau County, MTMT5,8655.7%−21%

44Lewis and Clark County, MTMT75,3315.7%+10%

45Deer Lodge County, MTMT9,7095.6%−16%

46Teton County, MTMT6,4965.4%−41%

47McCone County, MTMT1,7205.3%−13%

48Stillwater County, MTMT9,4455.2%+24%

49Prairie County, MTMT1,1124.7%+21%

50Richland County, MTMT11,3774.7%−31%

51Beaverhead County, MTMT10,0434.3%−27%

52Treasure County, MTMT7284.1%−34%

53Meagher County, MTMT2,1373.6%−63%

54Liberty County, MTMT1,9573.4%−49%

55Fallon County, MTMT2,9593.1%−59%

56Daniels County, MTMT1,6122.0%−51%

SHOWING 1–56 OF 56

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