Counties in Montana by uninsured rate, under 19 (US, ACS)

Roosevelt County had the highest uninsured rate, under 19 (US, ACS) of 56 counties in 2022, at 31.6%. Prairie County had the lowest, at 0%. The median was 6.5% and the figure for Montana was 6.5%. Source: the U.S. Census Bureau.

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Highest31.6Roosevelt County
Median6.556 counties
Montana6.5History

Map of counties, 2022

Beaverhead County: 7.1 %Big Horn County: 12.5 %Blaine County: 16.3 %Broadwater County: 4.1 %Carbon County: 3.9 %Carter County: 16.3 %Cascade County: 3.7 %Chouteau County: 2 %Custer County: 7.5 %Daniels County: 3.6 %Dawson County: 2.9 %Deer Lodge County: 11 %Fallon County: 11.7 %Fergus County: 12.4 %Flathead County: 5.7 %Gallatin County: 5 %Garfield County: 21 %Glacier County: 28.2 %Golden Valley County: 18 %Granite County: 8.2 %Hill County: 3.6 %Jefferson County: 2.3 %Judith Basin County: 0.6 %Lake County: 14.4 %Lewis and Clark County: 4.1 %Liberty County: 1.9 %Lincoln County: 14.3 %McCone County: 3.6 %Madison County: 10.6 %Meagher County: 9.3 %Mineral County: 4.3 %Missoula County: 2.1 %Musselshell County: 5.5 %Park County: 5.9 %Petroleum County: 7.8 %Phillips County: 1.2 %Pondera County: 4 %Powder River County: 0 %Powell County: 9.6 %Prairie County: 0 %Ravalli County: 8.8 %Richland County: 5.2 %Roosevelt County: 31.6 %Rosebud County: 22.4 %Sanders County: 16.2 %Sheridan County: 18.2 %Silver Bow County: 1.4 %Stillwater County: 2.5 %Sweet Grass County: 7.4 %Teton County: 10.6 %Toole County: 9.9 %Treasure County: 0.8 %Valley County: 3.5 %Wheatland County: 31.1 %Wibaux County: 13.4 %Yellowstone County: 4 %
  • Under 2.3
  • 2.3 to 4
  • 4 to 6.5
  • 6.5 to 10
  • 10 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

Roosevelt County: 31.6 %Roosevelt County31.6Wheatland County: 31.1 %Wheatland County31.1Glacier County: 28.2 %Glacier County28.2Rosebud County: 22.4 %Rosebud County22.4Garfield County: 21 %Garfield County21Sheridan County: 18.2 %Sheridan County18.2Golden Valley County: 18 %Golden Valley County18Carter County: 16.3 %Carter County16.3Blaine County: 16.3 %Blaine County16.3Sanders County: 16.2 %Sanders County16.2Lake County: 14.4 %Lake County14.4Lincoln County: 14.3 %Lincoln County14.3Wibaux County: 13.4 %Wibaux County13.4Big Horn County: 12.5 %Big Horn County12.5Fergus County: 12.4 %Fergus County12.4Fallon County: 11.7 %Fallon County11.7Deer Lodge County: 11 %Deer Lodge County11Madison County: 10.6 %Madison County10.6Teton County: 10.6 %Teton County10.6Toole County: 9.9 %Toole County9.9Powell County: 9.6 %Powell County9.6Meagher County: 9.3 %Meagher County9.3Ravalli County: 8.8 %Ravalli County8.8Granite County: 8.2 %Granite County8.2Petroleum County: 7.8 %Petroleum County7.8Custer County: 7.5 %Custer County7.5Sweet Grass County: 7.4 %Sweet Grass County7.4Beaverhead County: 7.1 %Beaverhead County7.1Park County: 5.9 %Park County5.9Flathead County: 5.7 %Flathead County5.7Musselshell County: 5.5 %Musselshell County5.5Richland County: 5.2 %Richland County5.2Gallatin County: 5 %Gallatin County5Mineral County: 4.3 %Mineral County4.3Broadwater County: 4.1 %Broadwater County4.1Lewis and Clark County: 4.1 %Lewis and Clark County4.1Yellowstone County: 4 %Yellowstone County4Pondera County: 4 %Pondera County4Carbon County: 3.9 %Carbon County3.9Cascade County: 3.7 %Cascade County3.7Hill County: 3.6 %Hill County3.6Daniels County: 3.6 %Daniels County3.6McCone County: 3.6 %McCone County3.6Valley County: 3.5 %Valley County3.5Dawson County: 2.9 %Dawson County2.9Stillwater County: 2.5 %Stillwater County2.5Jefferson County: 2.3 %Jefferson County2.3Missoula County: 2.1 %Missoula County2.1Chouteau County: 2 %Chouteau County2Liberty County: 1.9 %Liberty County1.9Silver Bow County: 1.4 %Silver Bow County1.4Phillips County: 1.2 %Phillips County1.2Treasure County: 0.8 %Treasure County0.8Judith Basin County: 0.6 %Judith Basin County0.6Powder River County: 0 %Powder River County0Prairie County: 0 %Prairie County0Roosevelt County: 31.6 %Roosevelt County31.6Wheatland County: 31.1 %Wheatland County31.1Glacier County: 28.2 %Glacier County28.2Rosebud County: 22.4 %Rosebud County22.4Garfield County: 21 %Garfield County21Sheridan County: 18.2 %Sheridan County18.2Golden Valley County: 18 %Golden Valley County18Carter County: 16.3 %Carter County16.3Blaine County: 16.3 %Blaine County16.3Sanders County: 16.2 %Sanders County16.2Lake County: 14.4 %Lake County14.4Lincoln County: 14.3 %Lincoln County14.3Wibaux County: 13.4 %Wibaux County13.4Big Horn County: 12.5 %Big Horn County12.5Fergus County: 12.4 %Fergus County12.4Fallon County: 11.7 %Fallon County11.7Deer Lodge County: 11 %Deer Lodge County11Madison County: 10.6 %Madison County10.6Teton County: 10.6 %Teton County10.6Toole County: 9.9 %Toole County9.9Powell County: 9.6 %Powell County9.6Meagher County: 9.3 %Meagher County9.3Ravalli County: 8.8 %Ravalli County8.8Granite County: 8.2 %Granite County8.2Petroleum County: 7.8 %Petroleum County7.8Custer County: 7.5 %Custer County7.5Sweet Grass County: 7.4 %Sweet Grass County7.4Beaverhead County: 7.1 %Beaverhead County7.1Park County: 5.9 %Park County5.9Flathead County: 5.7 %Flathead County5.7Musselshell County: 5.5 %Musselshell County5.5Richland County: 5.2 %Richland County5.2Gallatin County: 5 %Gallatin County5Mineral County: 4.3 %Mineral County4.3Broadwater County: 4.1 %Broadwater County4.1Lewis and Clark County: 4.1 %Lewis and Clark County4.1Yellowstone County: 4 %Yellowstone County4Pondera County: 4 %Pondera County4Carbon County: 3.9 %Carbon County3.9Cascade County: 3.7 %Cascade County3.7Hill County: 3.6 %Hill County3.6Daniels County: 3.6 %Daniels County3.6McCone County: 3.6 %McCone County3.6Valley County: 3.5 %Valley County3.5Dawson County: 2.9 %Dawson County2.9Stillwater County: 2.5 %Stillwater County2.5Jefferson County: 2.3 %Jefferson County2.3Missoula County: 2.1 %Missoula County2.1Chouteau County: 2 %Chouteau County2Liberty County: 1.9 %Liberty County1.9Silver Bow County: 1.4 %Silver Bow County1.4Phillips County: 1.2 %Phillips County1.2Treasure County: 0.8 %Treasure County0.8Judith Basin County: 0.6 %Judith Basin County0.6Powder River County: 0 %Powder River County0Prairie County: 0 %Prairie County0
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2022 (%)Change on 2021
1Roosevelt County31.6+3.6 pts
2Wheatland County31.1+13.5 pts
3Glacier County28.2-5.4 pts
4Rosebud County22.4-5.8 pts
5Garfield County21-9.6 pts
6Sheridan County18.2+7.9 pts
7Golden Valley County18+5.1 pts
8Carter County16.3+1.5 pts
9Blaine County16.3+3.1 pts
10Sanders County16.2+0.2 pts
11Lake County14.4+3.7 pts
12Lincoln County14.3+6.6 pts
13Wibaux County13.4+2.3 pts
14Big Horn County12.5-11.5 pts
15Fergus County12.4+0.7 pts
16Fallon County11.7-0.1 pts
17Deer Lodge County11-0.9 pts
18Madison County10.6+2.8 pts
19Teton County10.6-0.6 pts
20Toole County9.9+1.8 pts
21Powell County9.6-0.8 pts
22Meagher County9.3+5.5 pts
23Ravalli County8.8-0.3 pts
24Granite County8.2+0.3 pts
25Petroleum County7.8+5.4 pts
26Custer County7.5+2.5 pts
27Sweet Grass County7.4+0.3 pts
28Beaverhead County7.1+0.1 pts
29Park County5.9+0.7 pts
30Flathead County5.7-0.3 pts
31Musselshell County5.5+1.9 pts
32Richland County5.2-1.2 pts
33Gallatin County5+0.2 pts
34Mineral County4.3-3 pts
35Broadwater County4.1-1.1 pts
36Lewis and Clark County4.1+1.8 pts
37Yellowstone County4+0.3 pts
38Pondera County4-3 pts
39Carbon County3.9+0.5 pts
40Cascade County3.7-0.7 pts
41Hill County3.6-0.4 pts
42Daniels County3.6+1.3 pts
43McCone County3.6-13.2 pts
44Valley County3.5-1.7 pts
45Dawson County2.9+0.6 pts
46Stillwater County2.5-1.2 pts
47Jefferson County2.3-0.8 pts
48Missoula County2.1-0.3 pts
49Chouteau County2-1.8 pts
50Liberty County1.9-0.5 pts
51Silver Bow County1.4-0.6 pts
52Phillips County1.2+0.1 pts
53Treasure County0.80 pts
54Judith Basin County0.6+0.2 pts
55Powder River County0-9 pts
55Prairie County00 pts

Other periods

About this ranking

People under 19 without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population under 19. 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 under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, 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 under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs (Counties in Montana by uninsured rate, under 19 (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 under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs, Counties in Montana by uninsured rate, under 19 (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-under-19-acs/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 under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs. Counties in Montana by uninsured rate, under 19 (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-under-19-acs/montana-counties?period=2022.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs, Counties in Montana by uninsured rate, under 19 (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-under-19-acs/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 under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs: Counties in Montana by uninsured rate, under 19 (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-under-19-acs/montana-counties?period=2022. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, 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 under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs: Counties in Montana by uninsured rate, under 19 (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-under-19-acs/montana-counties?period=2022
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19-acs/montana-counties?period=2022.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, 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, under 19 (US, ACS)?

Roosevelt County, with 31.6% in 2022, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, under 19 (US, ACS)?

Prairie County, with 0% 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 under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, under 19 (US, ACS): other rankings

Counties in Montana: more rankings