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)

Wheatland County had the highest uninsured rate, under 19 (US model-based estimate) of 56 counties in 2023, at 13.3%. Missoula County had the lowest, at 5.7%. The median was 8% and the figure for Montana was 7%. Source: the U.S. Census Bureau.

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Highest13.3Wheatland County
Lowest5.7Missoula County
Median856 counties
Montana7History

Map of counties, 2023

Beaverhead County: 7.5 %Big Horn County: 7 %Blaine County: 7.9 %Broadwater County: 8.2 %Carbon County: 9.5 %Carter County: 10.7 %Cascade County: 6.2 %Chouteau County: 9.8 %Custer County: 7.1 %Daniels County: 5.8 %Dawson County: 6.8 %Deer Lodge County: 5.8 %Fallon County: 7.4 %Fergus County: 10.4 %Flathead County: 7.1 %Gallatin County: 6 %Garfield County: 13 %Glacier County: 8 %Golden Valley County: 11.8 %Granite County: 11.6 %Hill County: 7.5 %Jefferson County: 7.3 %Judith Basin County: 9.6 %Lake County: 7.9 %Lewis and Clark County: 6.3 %Liberty County: 13.2 %Lincoln County: 9.4 %McCone County: 7.9 %Madison County: 7.8 %Meagher County: 9.3 %Mineral County: 8.5 %Missoula County: 5.7 %Musselshell County: 10.9 %Park County: 6.8 %Petroleum County: 6.2 %Phillips County: 6.7 %Pondera County: 8.3 %Powder River County: 9.8 %Powell County: 9.3 %Prairie County: 11.3 %Ravalli County: 8.6 %Richland County: 6.6 %Roosevelt County: 7.4 %Rosebud County: 7.1 %Sanders County: 12 %Sheridan County: 9.4 %Silver Bow County: 6.5 %Stillwater County: 7.8 %Sweet Grass County: 7.5 %Teton County: 9.1 %Toole County: 9.3 %Treasure County: 8.1 %Valley County: 8.6 %Wheatland County: 13.3 %Wibaux County: 9.1 %Yellowstone County: 6.4 %
  • Under 6.6
  • 6.6 to 7.4
  • 7.4 to 8
  • 8 to 9.2
  • 9.2 to 10
  • 10 and over
%, 2023. 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, 2023

Wheatland County: 13.3 %Wheatland County13.3Liberty County: 13.2 %Liberty County13.2Garfield County: 13 %Garfield County13Sanders County: 12 %Sanders County12Golden Valley County: 11.8 %Golden Valley County11.8Granite County: 11.6 %Granite County11.6Prairie County: 11.3 %Prairie County11.3Musselshell County: 10.9 %Musselshell County10.9Carter County: 10.7 %Carter County10.7Fergus County: 10.4 %Fergus County10.4Chouteau County: 9.8 %Chouteau County9.8Powder River County: 9.8 %Powder River County9.8Judith Basin County: 9.6 %Judith Basin County9.6Carbon County: 9.5 %Carbon County9.5Lincoln County: 9.4 %Lincoln County9.4Sheridan County: 9.4 %Sheridan County9.4Meagher County: 9.3 %Meagher County9.3Powell County: 9.3 %Powell County9.3Toole County: 9.3 %Toole County9.3Teton County: 9.1 %Teton County9.1Wibaux County: 9.1 %Wibaux County9.1Ravalli County: 8.6 %Ravalli County8.6Valley County: 8.6 %Valley County8.6Mineral County: 8.5 %Mineral County8.5Pondera County: 8.3 %Pondera County8.3Broadwater County: 8.2 %Broadwater County8.2Treasure County: 8.1 %Treasure County8.1Glacier County: 8 %Glacier County8Blaine County: 7.9 %Blaine County7.9Lake County: 7.9 %Lake County7.9McCone County: 7.9 %McCone County7.9Madison County: 7.8 %Madison County7.8Stillwater County: 7.8 %Stillwater County7.8Beaverhead County: 7.5 %Beaverhead County7.5Hill County: 7.5 %Hill County7.5Sweet Grass County: 7.5 %Sweet Grass County7.5Fallon County: 7.4 %Fallon County7.4Roosevelt County: 7.4 %Roosevelt County7.4Jefferson County: 7.3 %Jefferson County7.3Custer County: 7.1 %Custer County7.1Flathead County: 7.1 %Flathead County7.1Rosebud County: 7.1 %Rosebud County7.1Big Horn County: 7 %Big Horn County7Dawson County: 6.8 %Dawson County6.8Park County: 6.8 %Park County6.8Phillips County: 6.7 %Phillips County6.7Richland County: 6.6 %Richland County6.6Silver Bow County: 6.5 %Silver Bow County6.5Yellowstone County: 6.4 %Yellowstone County6.4Lewis and Clark County: 6.3 %Lewis and Clark County6.3Cascade County: 6.2 %Cascade County6.2Petroleum County: 6.2 %Petroleum County6.2Gallatin County: 6 %Gallatin County6Daniels County: 5.8 %Daniels County5.8Deer Lodge County: 5.8 %Deer Lodge County5.8Missoula County: 5.7 %Missoula County5.7Wheatland County: 13.3 %Wheatland County13.3Liberty County: 13.2 %Liberty County13.2Garfield County: 13 %Garfield County13Sanders County: 12 %Sanders County12Golden Valley County: 11.8 %Golden Valley County11.8Granite County: 11.6 %Granite County11.6Prairie County: 11.3 %Prairie County11.3Musselshell County: 10.9 %Musselshell County10.9Carter County: 10.7 %Carter County10.7Fergus County: 10.4 %Fergus County10.4Chouteau County: 9.8 %Chouteau County9.8Powder River County: 9.8 %Powder River County9.8Judith Basin County: 9.6 %Judith Basin County9.6Carbon County: 9.5 %Carbon County9.5Lincoln County: 9.4 %Lincoln County9.4Sheridan County: 9.4 %Sheridan County9.4Meagher County: 9.3 %Meagher County9.3Powell County: 9.3 %Powell County9.3Toole County: 9.3 %Toole County9.3Teton County: 9.1 %Teton County9.1Wibaux County: 9.1 %Wibaux County9.1Ravalli County: 8.6 %Ravalli County8.6Valley County: 8.6 %Valley County8.6Mineral County: 8.5 %Mineral County8.5Pondera County: 8.3 %Pondera County8.3Broadwater County: 8.2 %Broadwater County8.2Treasure County: 8.1 %Treasure County8.1Glacier County: 8 %Glacier County8Blaine County: 7.9 %Blaine County7.9Lake County: 7.9 %Lake County7.9McCone County: 7.9 %McCone County7.9Madison County: 7.8 %Madison County7.8Stillwater County: 7.8 %Stillwater County7.8Beaverhead County: 7.5 %Beaverhead County7.5Hill County: 7.5 %Hill County7.5Sweet Grass County: 7.5 %Sweet Grass County7.5Fallon County: 7.4 %Fallon County7.4Roosevelt County: 7.4 %Roosevelt County7.4Jefferson County: 7.3 %Jefferson County7.3Custer County: 7.1 %Custer County7.1Flathead County: 7.1 %Flathead County7.1Rosebud County: 7.1 %Rosebud County7.1Big Horn County: 7 %Big Horn County7Dawson County: 6.8 %Dawson County6.8Park County: 6.8 %Park County6.8Phillips County: 6.7 %Phillips County6.7Richland County: 6.6 %Richland County6.6Silver Bow County: 6.5 %Silver Bow County6.5Yellowstone County: 6.4 %Yellowstone County6.4Lewis and Clark County: 6.3 %Lewis and Clark County6.3Cascade County: 6.2 %Cascade County6.2Petroleum County: 6.2 %Petroleum County6.2Gallatin County: 6 %Gallatin County6Daniels County: 5.8 %Daniels County5.8Deer Lodge County: 5.8 %Deer Lodge County5.8Missoula County: 5.7 %Missoula County5.7
%. 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

RankCounties2023 (%)Change on 2022
1Wheatland County13.3+1.3 pts
2Liberty County13.2+1.6 pts
3Garfield County13+4.2 pts
4Sanders County12+1.2 pts
5Golden Valley County11.8+4.9 pts
6Granite County11.6+1.1 pts
7Prairie County11.3+2.5 pts
8Musselshell County10.9+3.6 pts
9Carter County10.7+1.1 pts
10Fergus County10.4+2.5 pts
11Chouteau County9.8+1 pts
11Powder River County9.8+1 pts
13Judith Basin County9.6+1.8 pts
14Carbon County9.5+2.5 pts
15Lincoln County9.4-0.6 pts
15Sheridan County9.4-0.7 pts
17Meagher County9.3-0.3 pts
17Powell County9.3+0.5 pts
17Toole County9.3+2 pts
20Teton County9.1+1.2 pts
20Wibaux County9.1+0.7 pts
22Ravalli County8.6+0.5 pts
22Valley County8.60 pts
24Mineral County8.5+0.7 pts
25Pondera County8.3+0.6 pts
26Broadwater County8.2-0.8 pts
27Treasure County8.1-0.5 pts
28Glacier County8+1.3 pts
29Blaine County7.9+1 pts
29Lake County7.9-1.1 pts
29McCone County7.9+1 pts
32Madison County7.8-2.6 pts
32Stillwater County7.8+0.9 pts
34Beaverhead County7.50 pts
34Hill County7.5+0.9 pts
34Sweet Grass County7.5+0.5 pts
37Fallon County7.4+0.5 pts
37Roosevelt County7.4-1.4 pts
39Jefferson County7.3+0.2 pts
40Custer County7.1-0.8 pts
40Flathead County7.10 pts
40Rosebud County7.1-0.4 pts
43Big Horn County7+0.2 pts
44Dawson County6.8+1.5 pts
44Park County6.8+0.1 pts
46Phillips County6.7+1 pts
47Richland County6.6+0.4 pts
48Silver Bow County6.5+1 pts
49Yellowstone County6.4+0.2 pts
50Lewis and Clark County6.3-0.7 pts
51Cascade County6.2-0.8 pts
51Petroleum County6.2+1.4 pts
53Gallatin County6+0.7 pts
54Daniels County5.8-3.5 pts
54Deer Lodge County5.8-0.7 pts
56Missoula County5.7-0.1 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-2023-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), 2023) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-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), 2023. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/montana-counties?period=2023. 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), 2023. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/montana-counties?period=2023.

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), 2023 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-19/montana-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_montana_by_2023,
  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), 2023}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/montana-counties?period=2023. 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-2023-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), 2023
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-2023-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-19/montana-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/montana-counties?period=2023.
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-2023-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)?

Wheatland County, with 13.3% in 2023, according to the U.S. Census Bureau.

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

Missoula County, with 5.7% 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, 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