RANKING · 2024 ACS · 56 SHOWN OF 56

Most uninsured people, Montana counties

Montana counties with the most residents lacking health insurance, as of the 2024 American Community Survey. Ranked by number of people, not the uninsured rate. This list covers the 56 counties in Montana that qualify, ranked against each other statewide.

MontanaAll states All rankings

SAME RANKING BYCities States Metros

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

RANKPLACESTATEPOPUNINSURED RESIDENTSVS 2020

01Yellowstone County, MTMT172,69212,901+35%

02Flathead County, MTMT115,42911,025+21%

03Gallatin County, MTMT128,7408,586+5%

04Missoula County, MTMT123,5137,254−5%

05Cascade County, MTMT85,0295,682−1%

06Ravalli County, MTMT48,5824,864+18%

07Lake County, MTMT33,3924,681+14%

08Lewis and Clark County, MTMT75,3314,103+16%

09Glacier County, MTMT13,4633,188−37%

10Lincoln County, MTMT22,3283,130+67%

11Big Horn County, MTMT12,7522,761−24%

12Roosevelt County, MTMT10,2422,598−12%

13Silver Bow County, MTMT36,1182,100−2%

14Fergus County, MTMT11,8251,854+57%

15Sanders County, MTMT14,0621,798+59%

16Park County, MTMT18,2141,426−15%

17Hill County, MTMT16,1671,329+52%

18Rosebud County, MTMT8,2531,315−12%

19Blaine County, MTMT6,8601,255+24%

20Carbon County, MTMT11,466907+51%

21Custer County, MTMT12,034903+27%

22Jefferson County, MTMT13,329736+4%

23Madison County, MTMT10,026655−14%

24Broadwater County, MTMT8,493574−3%

25Dawson County, MTMT8,692561+92%

26Richland County, MTMT11,377532−29%

27Deer Lodge County, MTMT9,709518−11%

28Musselshell County, MTMT5,582517+53%

29Pondera County, MTMT6,072486+7%

30Valley County, MTMT7,385475−32%

31Stillwater County, MTMT9,445470+17%

32Mineral County, MTMT5,185450+29%

33Beaverhead County, MTMT10,043409−26%

34Sweet Grass County, MTMT3,762378+65%

35Toole County, MTMT5,211375−19%

36Wheatland County, MTMT2,100364+25%

37Powell County, MTMT7,157348−7%

38Teton County, MTMT6,496340−39%

39Chouteau County, MTMT5,865331−19%

40Phillips County, MTMT4,203316−35%

41Granite County, MTMT3,658290+31%

42Sheridan County, MTMT3,436265−6%

43Golden Valley County, MTMT844206+154%

44Judith Basin County, MTMT2,162141+5%

45Powder River County, MTMT1,781134−26%

46Garfield County, MTMT1,148106−32%

47Carter County, MTMT1,38396−55%

48McCone County, MTMT1,72087−21%

49Fallon County, MTMT2,95985−61%

50Wibaux County, MTMT88576−7%

51Meagher County, MTMT2,13772−58%

52Liberty County, MTMT1,95766−59%

53Prairie County, MTMT1,11258+29%

54Petroleum County, MTMT54830+15%

55Treasure County, MTMT72830−21%

56Daniels County, MTMT1,61229−58%

SHOWING 1–56 OF 56

Download CSV (full list, 56 rows)

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