Data / Rankings / Uninsured rate, under 19 (US model-based estimate) / Counties in Montana

Counties in Montana by uninsured rate, under 19 (US model-based estimate), 2024

Golden Valley County had the highest uninsured rate, under 19 (US model-based estimate) of 56 counties in 2024, at 19%. Gallatin County had the lowest, at 5.6%. The median was 9.8% and the figure for Montana was 8%. Source: the U.S. Census Bureau.

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Highest19Golden Valley County
Lowest5.6Gallatin County
Median9.856 counties
Montana8History

Map of counties, 2024

Beaverhead County: 9.1 %Big Horn County: 9.2 %Blaine County: 8.6 %Broadwater County: 13 %Carbon County: 9.5 %Carter County: 16.4 %Cascade County: 6.8 %Chouteau County: 9.9 %Custer County: 7.4 %Daniels County: 7.6 %Dawson County: 6.7 %Deer Lodge County: 5.7 %Fallon County: 9.5 %Fergus County: 8.7 %Flathead County: 9 %Gallatin County: 5.6 %Garfield County: 15.6 %Glacier County: 8.6 %Golden Valley County: 19 %Granite County: 10.7 %Hill County: 7.8 %Jefferson County: 9.6 %Judith Basin County: 14.3 %Lake County: 10.8 %Lewis and Clark County: 6.4 %Liberty County: 13.5 %Lincoln County: 10.7 %McCone County: 13.1 %Madison County: 10.5 %Meagher County: 10.4 %Mineral County: 9 %Missoula County: 5.8 %Musselshell County: 12.6 %Park County: 7.2 %Petroleum County: 7 %Phillips County: 6.6 %Pondera County: 11.7 %Powder River County: 9.9 %Powell County: 11.4 %Prairie County: 15.2 %Ravalli County: 10.7 %Richland County: 7.6 %Roosevelt County: 8.3 %Rosebud County: 8.9 %Sanders County: 14.1 %Sheridan County: 12.7 %Silver Bow County: 7.3 %Stillwater County: 9 %Sweet Grass County: 10.3 %Teton County: 13.1 %Toole County: 12.5 %Treasure County: 10.4 %Valley County: 12 %Wheatland County: 15.5 %Wibaux County: 11.8 %Yellowstone County: 7.4 %
  • Under 7.3
  • 7.3 to 8.8
  • 8.8 to 9.8
  • 9.8 to 11
  • 11 to 13
  • 13 and over
%, 2024. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2024

Golden Valley County: 19 %Golden Valley County19Carter County: 16.4 %Carter County16.4Garfield County: 15.6 %Garfield County15.6Wheatland County: 15.5 %Wheatland County15.5Prairie County: 15.2 %Prairie County15.2Judith Basin County: 14.3 %Judith Basin County14.3Sanders County: 14.1 %Sanders County14.1Liberty County: 13.5 %Liberty County13.5McCone County: 13.1 %McCone County13.1Teton County: 13.1 %Teton County13.1Broadwater County: 13 %Broadwater County13Sheridan County: 12.7 %Sheridan County12.7Musselshell County: 12.6 %Musselshell County12.6Toole County: 12.5 %Toole County12.5Valley County: 12 %Valley County12Wibaux County: 11.8 %Wibaux County11.8Pondera County: 11.7 %Pondera County11.7Powell County: 11.4 %Powell County11.4Lake County: 10.8 %Lake County10.8Granite County: 10.7 %Granite County10.7Lincoln County: 10.7 %Lincoln County10.7Ravalli County: 10.7 %Ravalli County10.7Madison County: 10.5 %Madison County10.5Meagher County: 10.4 %Meagher County10.4Treasure County: 10.4 %Treasure County10.4Sweet Grass County: 10.3 %Sweet Grass County10.3Chouteau County: 9.9 %Chouteau County9.9Powder River County: 9.9 %Powder River County9.9Jefferson County: 9.6 %Jefferson County9.6Carbon County: 9.5 %Carbon County9.5Fallon County: 9.5 %Fallon County9.5Big Horn County: 9.2 %Big Horn County9.2Beaverhead County: 9.1 %Beaverhead County9.1Flathead County: 9 %Flathead County9Mineral County: 9 %Mineral County9Stillwater County: 9 %Stillwater County9Rosebud County: 8.9 %Rosebud County8.9Fergus County: 8.7 %Fergus County8.7Blaine County: 8.6 %Blaine County8.6Glacier County: 8.6 %Glacier County8.6Roosevelt County: 8.3 %Roosevelt County8.3Hill County: 7.8 %Hill County7.8Daniels County: 7.6 %Daniels County7.6Richland County: 7.6 %Richland County7.6Custer County: 7.4 %Custer County7.4Yellowstone County: 7.4 %Yellowstone County7.4Silver Bow County: 7.3 %Silver Bow County7.3Park County: 7.2 %Park County7.2Petroleum County: 7 %Petroleum County7Cascade County: 6.8 %Cascade County6.8Dawson County: 6.7 %Dawson County6.7Phillips County: 6.6 %Phillips County6.6Lewis and Clark County: 6.4 %Lewis and Clark County6.4Missoula County: 5.8 %Missoula County5.8Deer Lodge County: 5.7 %Deer Lodge County5.7Gallatin County: 5.6 %Gallatin County5.6Golden Valley County: 19 %Golden Valley County19Carter County: 16.4 %Carter County16.4Garfield County: 15.6 %Garfield County15.6Wheatland County: 15.5 %Wheatland County15.5Prairie County: 15.2 %Prairie County15.2Judith Basin County: 14.3 %Judith Basin County14.3Sanders County: 14.1 %Sanders County14.1Liberty County: 13.5 %Liberty County13.5McCone County: 13.1 %McCone County13.1Teton County: 13.1 %Teton County13.1Broadwater County: 13 %Broadwater County13Sheridan County: 12.7 %Sheridan County12.7Musselshell County: 12.6 %Musselshell County12.6Toole County: 12.5 %Toole County12.5Valley County: 12 %Valley County12Wibaux County: 11.8 %Wibaux County11.8Pondera County: 11.7 %Pondera County11.7Powell County: 11.4 %Powell County11.4Lake County: 10.8 %Lake County10.8Granite County: 10.7 %Granite County10.7Lincoln County: 10.7 %Lincoln County10.7Ravalli County: 10.7 %Ravalli County10.7Madison County: 10.5 %Madison County10.5Meagher County: 10.4 %Meagher County10.4Treasure County: 10.4 %Treasure County10.4Sweet Grass County: 10.3 %Sweet Grass County10.3Chouteau County: 9.9 %Chouteau County9.9Powder River County: 9.9 %Powder River County9.9Jefferson County: 9.6 %Jefferson County9.6Carbon County: 9.5 %Carbon County9.5Fallon County: 9.5 %Fallon County9.5Big Horn County: 9.2 %Big Horn County9.2Beaverhead County: 9.1 %Beaverhead County9.1Flathead County: 9 %Flathead County9Mineral County: 9 %Mineral County9Stillwater County: 9 %Stillwater County9Rosebud County: 8.9 %Rosebud County8.9Fergus County: 8.7 %Fergus County8.7Blaine County: 8.6 %Blaine County8.6Glacier County: 8.6 %Glacier County8.6Roosevelt County: 8.3 %Roosevelt County8.3Hill County: 7.8 %Hill County7.8Daniels County: 7.6 %Daniels County7.6Richland County: 7.6 %Richland County7.6Custer County: 7.4 %Custer County7.4Yellowstone County: 7.4 %Yellowstone County7.4Silver Bow County: 7.3 %Silver Bow County7.3Park County: 7.2 %Park County7.2Petroleum County: 7 %Petroleum County7Cascade County: 6.8 %Cascade County6.8Dawson County: 6.7 %Dawson County6.7Phillips County: 6.6 %Phillips County6.6Lewis and Clark County: 6.4 %Lewis and Clark County6.4Missoula County: 5.8 %Missoula County5.8Deer Lodge County: 5.7 %Deer Lodge County5.7Gallatin County: 5.6 %Gallatin County5.6
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2024 (%)Change on 2023
1Golden Valley County19+7.2 pts
2Carter County16.4+5.7 pts
3Garfield County15.6+2.6 pts
4Wheatland County15.5+2.2 pts
5Prairie County15.2+3.9 pts
6Judith Basin County14.3+4.7 pts
7Sanders County14.1+2.1 pts
8Liberty County13.5+0.3 pts
9McCone County13.1+5.2 pts
9Teton County13.1+4 pts
11Broadwater County13+4.8 pts
12Sheridan County12.7+3.3 pts
13Musselshell County12.6+1.7 pts
14Toole County12.5+3.2 pts
15Valley County12+3.4 pts
16Wibaux County11.8+2.7 pts
17Pondera County11.7+3.4 pts
18Powell County11.4+2.1 pts
19Lake County10.8+2.9 pts
20Granite County10.7-0.9 pts
20Lincoln County10.7+1.3 pts
20Ravalli County10.7+2.1 pts
23Madison County10.5+2.7 pts
24Meagher County10.4+1.1 pts
24Treasure County10.4+2.3 pts
26Sweet Grass County10.3+2.8 pts
27Chouteau County9.9+0.1 pts
27Powder River County9.9+0.1 pts
29Jefferson County9.6+2.3 pts
30Carbon County9.50 pts
30Fallon County9.5+2.1 pts
32Big Horn County9.2+2.2 pts
33Beaverhead County9.1+1.6 pts
34Flathead County9+1.9 pts
34Mineral County9+0.5 pts
34Stillwater County9+1.2 pts
37Rosebud County8.9+1.8 pts
38Fergus County8.7-1.7 pts
39Blaine County8.6+0.7 pts
39Glacier County8.6+0.6 pts
41Roosevelt County8.3+0.9 pts
42Hill County7.8+0.3 pts
43Daniels County7.6+1.8 pts
43Richland County7.6+1 pts
45Custer County7.4+0.3 pts
45Yellowstone County7.4+1 pts
47Silver Bow County7.3+0.8 pts
48Park County7.2+0.4 pts
49Petroleum County7+0.8 pts
50Cascade County6.8+0.6 pts
51Dawson County6.7-0.1 pts
52Phillips County6.6-0.1 pts
53Lewis and Clark County6.4+0.1 pts
54Missoula County5.8+0.1 pts
55Deer Lodge County5.7-0.1 pts
56Gallatin County5.6-0.4 pts

Other periods

About this ranking

People under 19 without health insurance coverage of any kind, as a percentage of all people under 19. United States: Census Bureau Small Area Health Insurance Estimates (SAHIE) for states and counties, all races, both sexes and all income levels.

A model-based single-year estimate that combines the American Community Survey with administrative records and population estimates, so every county gets a figure. Covers states and counties only, because the SAHIE dataset files have no national row. The Census Bureau advises comparing years from 2008 on only; 2013 is the updated release. Under 19 matches the age limit for children in Medicaid and the Children's Health Insurance Program (CHIP).

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. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-csv.zip. 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). Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties (Counties in Montana by uninsured rate, under 19 (US model-based estimate), 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties, Counties in Montana by uninsured rate, under 19 (US model-based estimate), 2024. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/montana-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Counties in Montana by uninsured rate, under 19 (US model-based estimate), 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/montana-counties.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties, Counties in Montana by uninsured rate, under 19 (US model-based estimate), 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-19/montana-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_montana_by_2024,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties: Counties in Montana by uninsured rate, under 19 (US model-based estimate), 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/montana-counties. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties: Counties in Montana by uninsured rate, under 19 (US model-based estimate), 2024
PY  - 2026
DA  - 2026/08/06
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-19/montana-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/montana-counties.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-csv.zip. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest uninsured rate, under 19 (US model-based estimate)?

Golden Valley County, with 19% in 2024, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, under 19 (US model-based estimate)?

Gallatin County, with 5.6% in 2024.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, under 19 (US model-based estimate): other rankings

Counties in Montana: more rankings