Counties in Montana by uninsured rate, ages 35 to 64 (US, ACS)

Glacier County had the highest uninsured rate, ages 35 to 64 (US, ACS) of 56 counties in 2022, at 33.4%. Powell County had the lowest, at 3.3%. The median was 10.7% and the figure for Montana was 10.9%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest33.4Glacier County
Lowest3.3Powell County
Median10.756 counties
Montana10.9History

Map of counties, 2022

Beaverhead County: 6.2 %Big Horn County: 25.6 %Blaine County: 23.3 %Broadwater County: 13.6 %Carbon County: 10.1 %Carter County: 22.2 %Cascade County: 8.8 %Chouteau County: 5.2 %Custer County: 8.9 %Daniels County: 7.4 %Dawson County: 7.4 %Deer Lodge County: 10 %Fallon County: 6 %Fergus County: 18.7 %Flathead County: 12.4 %Gallatin County: 9.9 %Garfield County: 13.4 %Glacier County: 33.4 %Golden Valley County: 14.3 %Granite County: 9.8 %Hill County: 12.8 %Jefferson County: 8.8 %Judith Basin County: 9.6 %Lake County: 19 %Lewis and Clark County: 6.7 %Liberty County: 12.2 %Lincoln County: 18.7 %McCone County: 11.9 %Madison County: 13.8 %Meagher County: 10.3 %Mineral County: 11.7 %Missoula County: 8.3 %Musselshell County: 7.3 %Park County: 11.6 %Petroleum County: 5.7 %Phillips County: 16.4 %Pondera County: 9.3 %Powder River County: 13.8 %Powell County: 3.3 %Prairie County: 12.3 %Ravalli County: 13.6 %Richland County: 9 %Roosevelt County: 30 %Rosebud County: 14.4 %Sanders County: 15.7 %Sheridan County: 8.2 %Silver Bow County: 10.2 %Stillwater County: 6.4 %Sweet Grass County: 12.6 %Teton County: 11 %Toole County: 8.4 %Treasure County: 9.1 %Valley County: 10 %Wheatland County: 24.2 %Wibaux County: 11.7 %Yellowstone County: 7.7 %
  • Under 7.5
  • 7.5 to 9.2
  • 9.2 to 11
  • 11 to 13
  • 13 to 16
  • 16 and over
%, 2022. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2022

Glacier County: 33.4 %Glacier County33.4Roosevelt County: 30 %Roosevelt County30Big Horn County: 25.6 %Big Horn County25.6Wheatland County: 24.2 %Wheatland County24.2Blaine County: 23.3 %Blaine County23.3Carter County: 22.2 %Carter County22.2Lake County: 19 %Lake County19Fergus County: 18.7 %Fergus County18.7Lincoln County: 18.7 %Lincoln County18.7Phillips County: 16.4 %Phillips County16.4Sanders County: 15.7 %Sanders County15.7Rosebud County: 14.4 %Rosebud County14.4Golden Valley County: 14.3 %Golden Valley County14.3Madison County: 13.8 %Madison County13.8Powder River County: 13.8 %Powder River County13.8Ravalli County: 13.6 %Ravalli County13.6Broadwater County: 13.6 %Broadwater County13.6Garfield County: 13.4 %Garfield County13.4Hill County: 12.8 %Hill County12.8Sweet Grass County: 12.6 %Sweet Grass County12.6Flathead County: 12.4 %Flathead County12.4Prairie County: 12.3 %Prairie County12.3Liberty County: 12.2 %Liberty County12.2McCone County: 11.9 %McCone County11.9Wibaux County: 11.7 %Wibaux County11.7Mineral County: 11.7 %Mineral County11.7Park County: 11.6 %Park County11.6Teton County: 11 %Teton County11Meagher County: 10.3 %Meagher County10.3Silver Bow County: 10.2 %Silver Bow County10.2Carbon County: 10.1 %Carbon County10.1Deer Lodge County: 10 %Deer Lodge County10Valley County: 10 %Valley County10Gallatin County: 9.9 %Gallatin County9.9Granite County: 9.8 %Granite County9.8Judith Basin County: 9.6 %Judith Basin County9.6Pondera County: 9.3 %Pondera County9.3Treasure County: 9.1 %Treasure County9.1Richland County: 9 %Richland County9Custer County: 8.9 %Custer County8.9Jefferson County: 8.8 %Jefferson County8.8Cascade County: 8.8 %Cascade County8.8Toole County: 8.4 %Toole County8.4Missoula County: 8.3 %Missoula County8.3Sheridan County: 8.2 %Sheridan County8.2Yellowstone County: 7.7 %Yellowstone County7.7Dawson County: 7.4 %Dawson County7.4Daniels County: 7.4 %Daniels County7.4Musselshell County: 7.3 %Musselshell County7.3Lewis and Clark County: 6.7 %Lewis and Clark County6.7Stillwater County: 6.4 %Stillwater County6.4Beaverhead County: 6.2 %Beaverhead County6.2Fallon County: 6 %Fallon County6Petroleum County: 5.7 %Petroleum County5.7Chouteau County: 5.2 %Chouteau County5.2Powell County: 3.3 %Powell County3.3Glacier County: 33.4 %Glacier County33.4Roosevelt County: 30 %Roosevelt County30Big Horn County: 25.6 %Big Horn County25.6Wheatland County: 24.2 %Wheatland County24.2Blaine County: 23.3 %Blaine County23.3Carter County: 22.2 %Carter County22.2Lake County: 19 %Lake County19Fergus County: 18.7 %Fergus County18.7Lincoln County: 18.7 %Lincoln County18.7Phillips County: 16.4 %Phillips County16.4Sanders County: 15.7 %Sanders County15.7Rosebud County: 14.4 %Rosebud County14.4Golden Valley County: 14.3 %Golden Valley County14.3Madison County: 13.8 %Madison County13.8Powder River County: 13.8 %Powder River County13.8Ravalli County: 13.6 %Ravalli County13.6Broadwater County: 13.6 %Broadwater County13.6Garfield County: 13.4 %Garfield County13.4Hill County: 12.8 %Hill County12.8Sweet Grass County: 12.6 %Sweet Grass County12.6Flathead County: 12.4 %Flathead County12.4Prairie County: 12.3 %Prairie County12.3Liberty County: 12.2 %Liberty County12.2McCone County: 11.9 %McCone County11.9Wibaux County: 11.7 %Wibaux County11.7Mineral County: 11.7 %Mineral County11.7Park County: 11.6 %Park County11.6Teton County: 11 %Teton County11Meagher County: 10.3 %Meagher County10.3Silver Bow County: 10.2 %Silver Bow County10.2Carbon County: 10.1 %Carbon County10.1Deer Lodge County: 10 %Deer Lodge County10Valley County: 10 %Valley County10Gallatin County: 9.9 %Gallatin County9.9Granite County: 9.8 %Granite County9.8Judith Basin County: 9.6 %Judith Basin County9.6Pondera County: 9.3 %Pondera County9.3Treasure County: 9.1 %Treasure County9.1Richland County: 9 %Richland County9Custer County: 8.9 %Custer County8.9Jefferson County: 8.8 %Jefferson County8.8Cascade County: 8.8 %Cascade County8.8Toole County: 8.4 %Toole County8.4Missoula County: 8.3 %Missoula County8.3Sheridan County: 8.2 %Sheridan County8.2Yellowstone County: 7.7 %Yellowstone County7.7Dawson County: 7.4 %Dawson County7.4Daniels County: 7.4 %Daniels County7.4Musselshell County: 7.3 %Musselshell County7.3Lewis and Clark County: 6.7 %Lewis and Clark County6.7Stillwater County: 6.4 %Stillwater County6.4Beaverhead County: 6.2 %Beaverhead County6.2Fallon County: 6 %Fallon County6Petroleum County: 5.7 %Petroleum County5.7Chouteau County: 5.2 %Chouteau County5.2Powell County: 3.3 %Powell County3.3
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2022 (%)Change on 2021
1Glacier County33.4-11.2 pts
2Roosevelt County30+1.5 pts
3Big Horn County25.6-4.7 pts
4Wheatland County24.2-1.2 pts
5Blaine County23.30 pts
6Carter County22.2+1.2 pts
7Lake County19+0.8 pts
8Fergus County18.7+3.1 pts
8Lincoln County18.7+3.1 pts
10Phillips County16.4+1 pts
11Sanders County15.7+2.6 pts
12Rosebud County14.4-2.4 pts
13Golden Valley County14.3-1.2 pts
14Madison County13.8+0.2 pts
15Powder River County13.8-0.1 pts
16Ravalli County13.6-0.2 pts
17Broadwater County13.6-2 pts
18Garfield County13.4-3.4 pts
19Hill County12.8+5 pts
20Sweet Grass County12.6+4.1 pts
21Flathead County12.4-0.5 pts
22Prairie County12.3+1 pts
23Liberty County12.2-2.4 pts
24McCone County11.9-0.5 pts
25Wibaux County11.7+4.7 pts
26Mineral County11.7-0.4 pts
27Park County11.6-3 pts
28Teton County11-2.1 pts
29Meagher County10.3+0.8 pts
30Silver Bow County10.2+2.7 pts
31Carbon County10.1-0.6 pts
32Deer Lodge County10-0.4 pts
33Valley County10-4.1 pts
34Gallatin County9.9+0.1 pts
35Granite County9.8-2.9 pts
36Judith Basin County9.6-1.2 pts
37Pondera County9.3+1.6 pts
38Treasure County9.1+1.4 pts
39Richland County9-1.6 pts
40Custer County8.9+1.6 pts
41Jefferson County8.8-0.2 pts
42Cascade County8.8-0.5 pts
43Toole County8.4-2.6 pts
44Missoula County8.30 pts
45Sheridan County8.2+0.1 pts
46Yellowstone County7.7+0.1 pts
47Dawson County7.4+1.8 pts
48Daniels County7.40 pts
49Musselshell County7.3+1.5 pts
50Lewis and Clark County6.7-0.4 pts
51Stillwater County6.4-0.5 pts
52Beaverhead County6.20 pts
53Fallon County6+0.1 pts
54Petroleum County5.70 pts
55Chouteau County5.2-1.2 pts
56Powell County3.3-0.9 pts

Other periods

About this ranking

People aged 35 to 64 without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population aged 35 to 64. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Coverage is what people reported at the interview, so the five-year figure averages five years of answers. People whose only coverage is the Indian Health Service count as uninsured. Active-duty military and people living in institutions are outside the universe. For single-year model-based county figures under 65, see uninsured_rate_under_65, uninsured_rate_18_64 and uninsured_rate_under_19 (SAHIE), a different source.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b27010.dat. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs (Counties in Montana by uninsured rate, ages 35 to 64 (US, ACS), 2022) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b27010.dat

MLA 9

American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs, Counties in Montana by uninsured rate, ages 35 to 64 (US, ACS), 2022. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/montana-counties?period=2022. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. Counties in Montana by uninsured rate, ages 35 to 64 (US, ACS), 2022. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/montana-counties?period=2022.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs, Counties in Montana by uninsured rate, ages 35 to 64 (US, ACS), 2022 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-35-64/montana-counties?period=2022 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_montana_by_2022,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs: Counties in Montana by uninsured rate, ages 35 to 64 (US, ACS), 2022}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/montana-counties?period=2022. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b27010.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs: Counties in Montana by uninsured rate, ages 35 to 64 (US, ACS), 2022
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate-ages-35-64/montana-counties?period=2022
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/montana-counties?period=2022.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b27010.dat. Retrieved 2026-10-12.
ER  - 
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Questions

Which county has the highest uninsured rate, ages 35 to 64 (US, ACS)?

Glacier County, with 33.4% in 2022, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 35 to 64 (US, ACS)?

Powell County, with 3.3% in 2022.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, ages 35 to 64 (US, ACS): other rankings

Counties in Montana: more rankings