Counties in Montana by uninsured rate, under 65 (US model-based estimate)

Glacier County had the highest uninsured rate, under 65 (US model-based estimate) of 56 counties in 2017, at 19.9%. Lewis and Clark County had the lowest, at 7.7%. The median was 11.8% and the figure for Montana was 10.4%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest19.9Glacier County
Median11.856 counties
Montana10.4History

Map of counties, 2017

Beaverhead County: 11.7 %Big Horn County: 19.4 %Blaine County: 17.5 %Broadwater County: 11.3 %Carbon County: 11.7 %Carter County: 12.7 %Cascade County: 10.1 %Chouteau County: 14.9 %Custer County: 9 %Daniels County: 10.2 %Dawson County: 8 %Deer Lodge County: 10.1 %Fallon County: 9.1 %Fergus County: 11.5 %Flathead County: 10.3 %Gallatin County: 8.2 %Garfield County: 15.1 %Glacier County: 19.9 %Golden Valley County: 14.4 %Granite County: 13.7 %Hill County: 12.8 %Jefferson County: 8.3 %Judith Basin County: 11.8 %Lake County: 15.3 %Lewis and Clark County: 7.7 %Liberty County: 19.4 %Lincoln County: 12.9 %McCone County: 16.6 %Madison County: 13.7 %Meagher County: 11.6 %Mineral County: 10.6 %Missoula County: 8.6 %Musselshell County: 12.4 %Park County: 10.1 %Petroleum County: 11.8 %Phillips County: 14.2 %Pondera County: 13.6 %Powder River County: 14.7 %Powell County: 10.8 %Prairie County: 11.4 %Ravalli County: 12.7 %Richland County: 10.7 %Roosevelt County: 19.6 %Rosebud County: 13.8 %Sanders County: 15.6 %Sheridan County: 10.8 %Silver Bow County: 9.6 %Stillwater County: 8.3 %Sweet Grass County: 9.9 %Teton County: 12 %Toole County: 13.4 %Treasure County: 14.2 %Valley County: 12.4 %Wheatland County: 17.2 %Wibaux County: 11.5 %Yellowstone County: 9 %
  • Under 9.7
  • 9.7 to 11
  • 11 to 12
  • 12 to 14
  • 14 to 15
  • 15 and over
%, 2017. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2017

Glacier County: 19.9 %Glacier County19.9Roosevelt County: 19.6 %Roosevelt County19.6Big Horn County: 19.4 %Big Horn County19.4Liberty County: 19.4 %Liberty County19.4Blaine County: 17.5 %Blaine County17.5Wheatland County: 17.2 %Wheatland County17.2McCone County: 16.6 %McCone County16.6Sanders County: 15.6 %Sanders County15.6Lake County: 15.3 %Lake County15.3Garfield County: 15.1 %Garfield County15.1Chouteau County: 14.9 %Chouteau County14.9Powder River County: 14.7 %Powder River County14.7Golden Valley County: 14.4 %Golden Valley County14.4Phillips County: 14.2 %Phillips County14.2Treasure County: 14.2 %Treasure County14.2Rosebud County: 13.8 %Rosebud County13.8Granite County: 13.7 %Granite County13.7Madison County: 13.7 %Madison County13.7Pondera County: 13.6 %Pondera County13.6Toole County: 13.4 %Toole County13.4Lincoln County: 12.9 %Lincoln County12.9Hill County: 12.8 %Hill County12.8Carter County: 12.7 %Carter County12.7Ravalli County: 12.7 %Ravalli County12.7Musselshell County: 12.4 %Musselshell County12.4Valley County: 12.4 %Valley County12.4Teton County: 12 %Teton County12Judith Basin County: 11.8 %Judith Basin County11.8Petroleum County: 11.8 %Petroleum County11.8Beaverhead County: 11.7 %Beaverhead County11.7Carbon County: 11.7 %Carbon County11.7Meagher County: 11.6 %Meagher County11.6Fergus County: 11.5 %Fergus County11.5Wibaux County: 11.5 %Wibaux County11.5Prairie County: 11.4 %Prairie County11.4Broadwater County: 11.3 %Broadwater County11.3Powell County: 10.8 %Powell County10.8Sheridan County: 10.8 %Sheridan County10.8Richland County: 10.7 %Richland County10.7Mineral County: 10.6 %Mineral County10.6Flathead County: 10.3 %Flathead County10.3Daniels County: 10.2 %Daniels County10.2Cascade County: 10.1 %Cascade County10.1Deer Lodge County: 10.1 %Deer Lodge County10.1Park County: 10.1 %Park County10.1Sweet Grass County: 9.9 %Sweet Grass County9.9Silver Bow County: 9.6 %Silver Bow County9.6Fallon County: 9.1 %Fallon County9.1Custer County: 9 %Custer County9Yellowstone County: 9 %Yellowstone County9Missoula County: 8.6 %Missoula County8.6Jefferson County: 8.3 %Jefferson County8.3Stillwater County: 8.3 %Stillwater County8.3Gallatin County: 8.2 %Gallatin County8.2Dawson County: 8 %Dawson County8Lewis and Clark County: 7.7 %Lewis and Clark County7.7Glacier County: 19.9 %Glacier County19.9Roosevelt County: 19.6 %Roosevelt County19.6Big Horn County: 19.4 %Big Horn County19.4Liberty County: 19.4 %Liberty County19.4Blaine County: 17.5 %Blaine County17.5Wheatland County: 17.2 %Wheatland County17.2McCone County: 16.6 %McCone County16.6Sanders County: 15.6 %Sanders County15.6Lake County: 15.3 %Lake County15.3Garfield County: 15.1 %Garfield County15.1Chouteau County: 14.9 %Chouteau County14.9Powder River County: 14.7 %Powder River County14.7Golden Valley County: 14.4 %Golden Valley County14.4Phillips County: 14.2 %Phillips County14.2Treasure County: 14.2 %Treasure County14.2Rosebud County: 13.8 %Rosebud County13.8Granite County: 13.7 %Granite County13.7Madison County: 13.7 %Madison County13.7Pondera County: 13.6 %Pondera County13.6Toole County: 13.4 %Toole County13.4Lincoln County: 12.9 %Lincoln County12.9Hill County: 12.8 %Hill County12.8Carter County: 12.7 %Carter County12.7Ravalli County: 12.7 %Ravalli County12.7Musselshell County: 12.4 %Musselshell County12.4Valley County: 12.4 %Valley County12.4Teton County: 12 %Teton County12Judith Basin County: 11.8 %Judith Basin County11.8Petroleum County: 11.8 %Petroleum County11.8Beaverhead County: 11.7 %Beaverhead County11.7Carbon County: 11.7 %Carbon County11.7Meagher County: 11.6 %Meagher County11.6Fergus County: 11.5 %Fergus County11.5Wibaux County: 11.5 %Wibaux County11.5Prairie County: 11.4 %Prairie County11.4Broadwater County: 11.3 %Broadwater County11.3Powell County: 10.8 %Powell County10.8Sheridan County: 10.8 %Sheridan County10.8Richland County: 10.7 %Richland County10.7Mineral County: 10.6 %Mineral County10.6Flathead County: 10.3 %Flathead County10.3Daniels County: 10.2 %Daniels County10.2Cascade County: 10.1 %Cascade County10.1Deer Lodge County: 10.1 %Deer Lodge County10.1Park County: 10.1 %Park County10.1Sweet Grass County: 9.9 %Sweet Grass County9.9Silver Bow County: 9.6 %Silver Bow County9.6Fallon County: 9.1 %Fallon County9.1Custer County: 9 %Custer County9Yellowstone County: 9 %Yellowstone County9Missoula County: 8.6 %Missoula County8.6Jefferson County: 8.3 %Jefferson County8.3Stillwater County: 8.3 %Stillwater County8.3Gallatin County: 8.2 %Gallatin County8.2Dawson County: 8 %Dawson County8Lewis and Clark County: 7.7 %Lewis and Clark County7.7
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2017 (%)Change on 2016
1Glacier County19.9-1.1 pts
2Roosevelt County19.6+1.7 pts
3Big Horn County19.4+0.9 pts
3Liberty County19.4+5.9 pts
5Blaine County17.5+0.7 pts
6Wheatland County17.2+2.6 pts
7McCone County16.6+1.9 pts
8Sanders County15.6+0.3 pts
9Lake County15.3-0.2 pts
10Garfield County15.1+4.3 pts
11Chouteau County14.9-1 pts
12Powder River County14.7+3.6 pts
13Golden Valley County14.4+3.4 pts
14Phillips County14.2-0.1 pts
14Treasure County14.2+0.9 pts
16Rosebud County13.8+1.1 pts
17Granite County13.7+1.1 pts
17Madison County13.7+2.4 pts
19Pondera County13.6+0.8 pts
20Toole County13.4+1.8 pts
21Lincoln County12.9+0.5 pts
22Hill County12.8+0.5 pts
23Carter County12.7-0.7 pts
23Ravalli County12.7+1.4 pts
25Musselshell County12.4+0.7 pts
25Valley County12.4-0.3 pts
27Teton County12+1 pts
28Judith Basin County11.8+1.4 pts
28Petroleum County11.8-2.3 pts
30Beaverhead County11.7+0.8 pts
30Carbon County11.7+1 pts
32Meagher County11.6+0.5 pts
33Fergus County11.5+2.2 pts
33Wibaux County11.5+1.4 pts
35Prairie County11.4+0.9 pts
36Broadwater County11.3+0.5 pts
37Powell County10.8+0.6 pts
37Sheridan County10.8+1 pts
39Richland County10.7+2 pts
40Mineral County10.6-0.7 pts
41Flathead County10.3+0.8 pts
42Daniels County10.2-0.1 pts
43Cascade County10.1-0.1 pts
43Deer Lodge County10.1+0.9 pts
43Park County10.10 pts
46Sweet Grass County9.9+0.4 pts
47Silver Bow County9.6+0.4 pts
48Fallon County9.1+2.6 pts
49Custer County9+0.6 pts
49Yellowstone County9+0.6 pts
51Missoula County8.6-0.9 pts
52Jefferson County8.3-0.3 pts
52Stillwater County8.3+0.7 pts
54Gallatin County8.2+0.6 pts
55Dawson County8+0.4 pts
56Lewis and Clark County7.7+0.1 pts

Other periods

About this ranking

People under 65 without health insurance coverage of any kind, as a percentage of all people under 65. 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. People 65 and over are left out because nearly all of them have Medicare.

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 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-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 65, all races, both sexes, all income levels, states and counties (Counties in Montana by uninsured rate, under 65 (US model-based estimate), 2017) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties, Counties in Montana by uninsured rate, under 65 (US model-based estimate), 2017. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/montana-counties?period=2017. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Counties in Montana by uninsured rate, under 65 (US model-based estimate), 2017. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/montana-counties?period=2017.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties, Counties in Montana by uninsured rate, under 65 (US model-based estimate), 2017 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-65/montana-counties?period=2017 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_montana_by_2017,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties: Counties in Montana by uninsured rate, under 65 (US model-based estimate), 2017}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/montana-counties?period=2017. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties: Counties in Montana by uninsured rate, under 65 (US model-based estimate), 2017
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-2017-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-65/montana-counties?period=2017
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/montana-counties?period=2017.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip. Retrieved 2026-10-12.
ER  - 
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Questions

Which county has the highest uninsured rate, under 65 (US model-based estimate)?

Glacier County, with 19.9% in 2017, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, under 65 (US model-based estimate)?

Lewis and Clark County, with 7.7% in 2017.

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 65, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, under 65 (US model-based estimate): other rankings

Counties in Montana: more rankings