Counties in Montana by uninsured rate, 65 and over (US, ACS)

Roosevelt County had the highest uninsured rate, 65 and over (US, ACS) of 56 counties in 2023, at 4.4%. Wibaux County had the lowest, at 0%. The median was 0.2% and the figure for Montana was 0.4%. Source: the U.S. Census Bureau.

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Median0.256 counties
Montana0.4History

Map of counties, 2023

Beaverhead County: 0.1 %Big Horn County: 3.3 %Blaine County: 2.6 %Broadwater County: 0 %Carbon County: 0.1 %Carter County: 0 %Cascade County: 0.3 %Chouteau County: 0.3 %Custer County: 0 %Daniels County: 0 %Dawson County: 0.4 %Deer Lodge County: 1 %Fallon County: 0 %Fergus County: 3.2 %Flathead County: 0.2 %Gallatin County: 0.3 %Garfield County: 0 %Glacier County: 3.2 %Golden Valley County: 2.5 %Granite County: 0 %Hill County: 0 %Jefferson County: 0.6 %Judith Basin County: 0 %Lake County: 0.3 %Lewis and Clark County: 0.4 %Liberty County: 0.8 %Lincoln County: 0.5 %McCone County: 0 %Madison County: 0.4 %Meagher County: 0 %Mineral County: 0 %Missoula County: 0.2 %Musselshell County: 0.8 %Park County: 0.9 %Petroleum County: 0 %Phillips County: 0 %Pondera County: 0.2 %Powder River County: 1.1 %Powell County: 0.9 %Prairie County: 0 %Ravalli County: 0.8 %Richland County: 0 %Roosevelt County: 4.4 %Rosebud County: 0.5 %Sanders County: 0.3 %Sheridan County: 0 %Silver Bow County: 0 %Stillwater County: 0 %Sweet Grass County: 0.2 %Teton County: 0.8 %Toole County: 0 %Treasure County: 0 %Valley County: 0 %Wheatland County: 0 %Wibaux County: 0 %Yellowstone County: 0.1 %
  • Under 0.2
  • 0.2 to 0.4
  • 0.4 to 0.8
  • 0.8 and over
%, 2023. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2023

Roosevelt County: 4.4 %Roosevelt County4.4Big Horn County: 3.3 %Big Horn County3.3Glacier County: 3.2 %Glacier County3.2Fergus County: 3.2 %Fergus County3.2Blaine County: 2.6 %Blaine County2.6Golden Valley County: 2.5 %Golden Valley County2.5Powder River County: 1.1 %Powder River County1.1Deer Lodge County: 1 %Deer Lodge County1Powell County: 0.9 %Powell County0.9Park County: 0.9 %Park County0.9Liberty County: 0.8 %Liberty County0.8Teton County: 0.8 %Teton County0.8Ravalli County: 0.8 %Ravalli County0.8Musselshell County: 0.8 %Musselshell County0.8Jefferson County: 0.6 %Jefferson County0.6Rosebud County: 0.5 %Rosebud County0.5Lincoln County: 0.5 %Lincoln County0.5Madison County: 0.4 %Madison County0.4Lewis and Clark County: 0.4 %Lewis and Clark County0.4Dawson County: 0.4 %Dawson County0.4Chouteau County: 0.3 %Chouteau County0.3Cascade County: 0.3 %Cascade County0.3Lake County: 0.3 %Lake County0.3Sanders County: 0.3 %Sanders County0.3Gallatin County: 0.3 %Gallatin County0.3Flathead County: 0.2 %Flathead County0.2Missoula County: 0.2 %Missoula County0.2Sweet Grass County: 0.2 %Sweet Grass County0.2Pondera County: 0.2 %Pondera County0.2Yellowstone County: 0.1 %Yellowstone County0.1Carbon County: 0.1 %Carbon County0.1Beaverhead County: 0.1 %Beaverhead County0.1Broadwater County: 0 %Broadwater County0Carter County: 0 %Carter County0Custer County: 0 %Custer County0Daniels County: 0 %Daniels County0Fallon County: 0 %Fallon County0Garfield County: 0 %Garfield County0Granite County: 0 %Granite County0Hill County: 0 %Hill County0Judith Basin County: 0 %Judith Basin County0McCone County: 0 %McCone County0Meagher County: 0 %Meagher County0Mineral County: 0 %Mineral County0Petroleum County: 0 %Petroleum County0Phillips County: 0 %Phillips County0Prairie County: 0 %Prairie County0Richland County: 0 %Richland County0Sheridan County: 0 %Sheridan County0Silver Bow County: 0 %Silver Bow County0Stillwater County: 0 %Stillwater County0Toole County: 0 %Toole County0Treasure County: 0 %Treasure County0Valley County: 0 %Valley County0Wheatland County: 0 %Wheatland County0Wibaux County: 0 %Wibaux County0Roosevelt County: 4.4 %Roosevelt County4.4Big Horn County: 3.3 %Big Horn County3.3Glacier County: 3.2 %Glacier County3.2Fergus County: 3.2 %Fergus County3.2Blaine County: 2.6 %Blaine County2.6Golden Valley County: 2.5 %Golden Valley County2.5Powder River County: 1.1 %Powder River County1.1Deer Lodge County: 1 %Deer Lodge County1Powell County: 0.9 %Powell County0.9Park County: 0.9 %Park County0.9Liberty County: 0.8 %Liberty County0.8Teton County: 0.8 %Teton County0.8Ravalli County: 0.8 %Ravalli County0.8Musselshell County: 0.8 %Musselshell County0.8Jefferson County: 0.6 %Jefferson County0.6Rosebud County: 0.5 %Rosebud County0.5Lincoln County: 0.5 %Lincoln County0.5Madison County: 0.4 %Madison County0.4Lewis and Clark County: 0.4 %Lewis and Clark County0.4Dawson County: 0.4 %Dawson County0.4Chouteau County: 0.3 %Chouteau County0.3Cascade County: 0.3 %Cascade County0.3Lake County: 0.3 %Lake County0.3Sanders County: 0.3 %Sanders County0.3Gallatin County: 0.3 %Gallatin County0.3Flathead County: 0.2 %Flathead County0.2Missoula County: 0.2 %Missoula County0.2Sweet Grass County: 0.2 %Sweet Grass County0.2Pondera County: 0.2 %Pondera County0.2Yellowstone County: 0.1 %Yellowstone County0.1Carbon County: 0.1 %Carbon County0.1Beaverhead County: 0.1 %Beaverhead County0.1Broadwater County: 0 %Broadwater County0Carter County: 0 %Carter County0Custer County: 0 %Custer County0Daniels County: 0 %Daniels County0Fallon County: 0 %Fallon County0Garfield County: 0 %Garfield County0Granite County: 0 %Granite County0Hill County: 0 %Hill County0Judith Basin County: 0 %Judith Basin County0McCone County: 0 %McCone County0Meagher County: 0 %Meagher County0Mineral County: 0 %Mineral County0Petroleum County: 0 %Petroleum County0Phillips County: 0 %Phillips County0Prairie County: 0 %Prairie County0Richland County: 0 %Richland County0Sheridan County: 0 %Sheridan County0Silver Bow County: 0 %Silver Bow County0Stillwater County: 0 %Stillwater County0Toole County: 0 %Toole County0Treasure County: 0 %Treasure County0Valley County: 0 %Valley County0Wheatland County: 0 %Wheatland County0Wibaux County: 0 %Wibaux County0
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)Change on 2022
1Roosevelt County4.4-1.4 pts
2Big Horn County3.3+2.6 pts
3Glacier County3.2+0.7 pts
4Fergus County3.2-1 pts
5Blaine County2.6+0.8 pts
6Golden Valley County2.5-0.1 pts
7Powder River County1.1+0.3 pts
8Deer Lodge County1-0.8 pts
9Powell County0.9-0.3 pts
10Park County0.9+0.8 pts
11Liberty County0.8+0.1 pts
11Teton County0.8-0.1 pts
13Ravalli County0.80 pts
14Musselshell County0.8+0.8 pts
15Jefferson County0.6+0.6 pts
16Rosebud County0.5+0.1 pts
17Lincoln County0.5-0.3 pts
18Madison County0.4+0.1 pts
19Lewis and Clark County0.4-0 pts
20Dawson County0.4-0.1 pts
21Chouteau County0.3+0.1 pts
22Cascade County0.3-0 pts
22Lake County0.3+0.1 pts
24Sanders County0.3-0 pts
25Gallatin County0.3-0.1 pts
26Flathead County0.2-0.1 pts
26Missoula County0.2-0 pts
26Sweet Grass County0.20 pts
29Pondera County0.2-0 pts
30Yellowstone County0.10 pts
31Carbon County0.1-0 pts
32Beaverhead County0.1+0.1 pts
33Broadwater County00 pts
33Carter County00 pts
33Custer County0-0.4 pts
33Daniels County0-0.9 pts
33Fallon County00 pts
33Garfield County00 pts
33Granite County00 pts
33Hill County00 pts
33Judith Basin County00 pts
33McCone County00 pts
33Meagher County00 pts
33Mineral County00 pts
33Petroleum County00 pts
33Phillips County00 pts
33Prairie County00 pts
33Richland County00 pts
33Sheridan County00 pts
33Silver Bow County00 pts
33Stillwater County00 pts
33Toole County00 pts
33Treasure County00 pts
33Valley County0-0.8 pts
33Wheatland County00 pts
33Wibaux County00 pts

Other periods

About this ranking

People aged 65 and over without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population aged 65 and over. 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 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-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 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs (Counties in Montana by uninsured rate, 65 and over (US, ACS), 2023) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat

MLA 9

American Community Survey 5-year estimates, table B27010: people aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs, Counties in Montana by uninsured rate, 65 and over (US, ACS), 2023. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate-65-and-over/montana-counties?period=2023. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs. Counties in Montana by uninsured rate, 65 and over (US, ACS), 2023. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-65-and-over/montana-counties?period=2023.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs, Counties in Montana by uninsured rate, 65 and over (US, ACS), 2023 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate-65-and-over/montana-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_montana_by_2023,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B27010: people aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs: Counties in Montana by uninsured rate, 65 and over (US, ACS), 2023}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-65-and-over/montana-counties?period=2023. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2023/table-based-SF/data/5YRData/acsdt5y2023-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 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs: Counties in Montana by uninsured rate, 65 and over (US, ACS), 2023
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate-65-and-over/montana-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-65-and-over/montana-counties?period=2023.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Retrieved 2026-10-12.
ER  - 
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Questions

Which county has the highest uninsured rate, 65 and over (US, ACS)?

Roosevelt County, with 4.4% in 2023, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, 65 and over (US, ACS)?

Wibaux County, with 0% in 2023.

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 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, 65 and over (US, ACS): other rankings

Counties in Montana: more rankings