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. The median across all 56 is 517. Biggest climber in the top 100 since 2020: Dawson County, MT, up 13 places to #25.

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%

06▲2Ravalli County, MTMT48,5824,864+18%

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

08▲2Lewis and Clark County, MTMT75,3314,103+16%

09▼3Glacier County, MTMT13,4633,188−37%

10▲3Lincoln County, MTMT22,3283,130+67%

11▼2Big Horn County, MTMT12,7522,761−24%

12▼1Roosevelt County, MTMT10,2422,598−12%

13▼1Silver Bow County, MTMT36,1182,100−2%

14▲2Fergus County, MTMT11,8251,854+57%

15▲2Sanders County, MTMT14,0621,798+59%

16▼2Park County, MTMT18,2141,426−15%

17▲2Hill County, MTMT16,1671,329+52%

18▼3Rosebud County, MTMT8,2531,315−12%

19▼1Blaine County, MTMT6,8601,255+24%

20▲5Carbon County, MTMT11,466907+51%

21▲1Custer County, MTMT12,034903+27%

22▲1Jefferson County, MTMT13,329736+4%

23▼3Madison County, MTMT10,026655−14%

24▲2Broadwater County, MTMT8,493574−3%

25▲13Dawson County, MTMT8,692561+92%

26▼5Richland County, MTMT11,377532−29%

27Deer Lodge County, MTMT9,709518−11%

28▲9Musselshell County, MTMT5,582517+53%

29▲3Pondera County, MTMT6,072486+7%

30▼6Valley County, MTMT7,385475−32%

31▲3Stillwater County, MTMT9,445470+17%

32▲4Mineral County, MTMT5,185450+29%

33▼4Beaverhead County, MTMT10,043409−26%

34▲7Sweet Grass County, MTMT3,762378+65%

35▼4Toole County, MTMT5,211375−19%

36▲3Wheatland County, MTMT2,100364+25%

37▼2Powell County, MTMT7,157348−7%

38▼10Teton County, MTMT6,496340−39%

39▼6Chouteau County, MTMT5,865331−19%

40▼10Phillips County, MTMT4,203316−35%

41▲1Granite County, MTMT3,658290+31%

42▼2Sheridan County, MTMT3,436265−6%

43▲9Golden Valley County, MTMT844206+154%

44▲5Judith Basin County, MTMT2,162141+5%

45Powder River County, MTMT1,781134−26%

46▲2Garfield County, MTMT1,148106−32%

47▼3Carter County, MTMT1,38396−55%

48▲2McCone County, MTMT1,72087−21%

49▼6Fallon County, MTMT2,95985−61%

50▲1Wibaux County, MTMT88576−7%

51▼5Meagher County, MTMT2,13772−58%

52▼5Liberty County, MTMT1,95766−59%

53▲1Prairie County, MTMT1,11258+29%

54▲2Petroleum County, MTMT54830+15%

55Treasure County, MTMT72830−21%

56▼3Daniels County, MTMT1,61229−58%

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