Counties in Montana by uninsured rate, ages 18 to 64 (US model-based estimate)

Glacier County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 56 counties in 2014, at 35.9%. Fallon County had the lowest, at 13.4%. The median was 22.1% and the figure for Montana was 20%. Source: the U.S. Census Bureau.

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Highest35.9Glacier County
Lowest13.4Fallon County
Median22.156 counties
Montana20History

Map of counties, 2014

Beaverhead County: 21.7 %Big Horn County: 34.7 %Blaine County: 33.9 %Broadwater County: 21.6 %Carbon County: 18.9 %Carter County: 25.1 %Cascade County: 19.1 %Chouteau County: 28 %Custer County: 18 %Daniels County: 17.2 %Dawson County: 16.7 %Deer Lodge County: 19.3 %Fallon County: 13.4 %Fergus County: 20.5 %Flathead County: 20.2 %Gallatin County: 16.1 %Garfield County: 22.6 %Glacier County: 35.9 %Golden Valley County: 24 %Granite County: 23 %Hill County: 22.6 %Jefferson County: 15.6 %Judith Basin County: 26 %Lake County: 31 %Lewis and Clark County: 15.5 %Liberty County: 22.2 %Lincoln County: 23.1 %McCone County: 24.7 %Madison County: 20.1 %Meagher County: 23.6 %Mineral County: 22.8 %Missoula County: 18.1 %Musselshell County: 22.7 %Park County: 21.3 %Petroleum County: 20.4 %Phillips County: 27.3 %Pondera County: 28.7 %Powder River County: 20.7 %Powell County: 20.5 %Prairie County: 19.2 %Ravalli County: 22.6 %Richland County: 16.8 %Roosevelt County: 32.7 %Rosebud County: 23.5 %Sanders County: 29.9 %Sheridan County: 16.1 %Silver Bow County: 18.9 %Stillwater County: 15.5 %Sweet Grass County: 18.1 %Teton County: 22.2 %Toole County: 22.4 %Treasure County: 22.3 %Valley County: 22 %Wheatland County: 30.2 %Wibaux County: 23.7 %Yellowstone County: 18 %
  • Under 18
  • 18 to 20
  • 20 to 22
  • 22 to 23
  • 23 to 27
  • 27 and over
%, 2014. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2014

Glacier County: 35.9 %Glacier County35.9Big Horn County: 34.7 %Big Horn County34.7Blaine County: 33.9 %Blaine County33.9Roosevelt County: 32.7 %Roosevelt County32.7Lake County: 31 %Lake County31Wheatland County: 30.2 %Wheatland County30.2Sanders County: 29.9 %Sanders County29.9Pondera County: 28.7 %Pondera County28.7Chouteau County: 28 %Chouteau County28Phillips County: 27.3 %Phillips County27.3Judith Basin County: 26 %Judith Basin County26Carter County: 25.1 %Carter County25.1McCone County: 24.7 %McCone County24.7Golden Valley County: 24 %Golden Valley County24Wibaux County: 23.7 %Wibaux County23.7Meagher County: 23.6 %Meagher County23.6Rosebud County: 23.5 %Rosebud County23.5Lincoln County: 23.1 %Lincoln County23.1Granite County: 23 %Granite County23Mineral County: 22.8 %Mineral County22.8Musselshell County: 22.7 %Musselshell County22.7Garfield County: 22.6 %Garfield County22.6Hill County: 22.6 %Hill County22.6Ravalli County: 22.6 %Ravalli County22.6Toole County: 22.4 %Toole County22.4Treasure County: 22.3 %Treasure County22.3Liberty County: 22.2 %Liberty County22.2Teton County: 22.2 %Teton County22.2Valley County: 22 %Valley County22Beaverhead County: 21.7 %Beaverhead County21.7Broadwater County: 21.6 %Broadwater County21.6Park County: 21.3 %Park County21.3Powder River County: 20.7 %Powder River County20.7Fergus County: 20.5 %Fergus County20.5Powell County: 20.5 %Powell County20.5Petroleum County: 20.4 %Petroleum County20.4Flathead County: 20.2 %Flathead County20.2Madison County: 20.1 %Madison County20.1Deer Lodge County: 19.3 %Deer Lodge County19.3Prairie County: 19.2 %Prairie County19.2Cascade County: 19.1 %Cascade County19.1Carbon County: 18.9 %Carbon County18.9Silver Bow County: 18.9 %Silver Bow County18.9Missoula County: 18.1 %Missoula County18.1Sweet Grass County: 18.1 %Sweet Grass County18.1Custer County: 18 %Custer County18Yellowstone County: 18 %Yellowstone County18Daniels County: 17.2 %Daniels County17.2Richland County: 16.8 %Richland County16.8Dawson County: 16.7 %Dawson County16.7Gallatin County: 16.1 %Gallatin County16.1Sheridan County: 16.1 %Sheridan County16.1Jefferson County: 15.6 %Jefferson County15.6Lewis and Clark County: 15.5 %Lewis and Clark County15.5Stillwater County: 15.5 %Stillwater County15.5Fallon County: 13.4 %Fallon County13.4Glacier County: 35.9 %Glacier County35.9Big Horn County: 34.7 %Big Horn County34.7Blaine County: 33.9 %Blaine County33.9Roosevelt County: 32.7 %Roosevelt County32.7Lake County: 31 %Lake County31Wheatland County: 30.2 %Wheatland County30.2Sanders County: 29.9 %Sanders County29.9Pondera County: 28.7 %Pondera County28.7Chouteau County: 28 %Chouteau County28Phillips County: 27.3 %Phillips County27.3Judith Basin County: 26 %Judith Basin County26Carter County: 25.1 %Carter County25.1McCone County: 24.7 %McCone County24.7Golden Valley County: 24 %Golden Valley County24Wibaux County: 23.7 %Wibaux County23.7Meagher County: 23.6 %Meagher County23.6Rosebud County: 23.5 %Rosebud County23.5Lincoln County: 23.1 %Lincoln County23.1Granite County: 23 %Granite County23Mineral County: 22.8 %Mineral County22.8Musselshell County: 22.7 %Musselshell County22.7Garfield County: 22.6 %Garfield County22.6Hill County: 22.6 %Hill County22.6Ravalli County: 22.6 %Ravalli County22.6Toole County: 22.4 %Toole County22.4Treasure County: 22.3 %Treasure County22.3Liberty County: 22.2 %Liberty County22.2Teton County: 22.2 %Teton County22.2Valley County: 22 %Valley County22Beaverhead County: 21.7 %Beaverhead County21.7Broadwater County: 21.6 %Broadwater County21.6Park County: 21.3 %Park County21.3Powder River County: 20.7 %Powder River County20.7Fergus County: 20.5 %Fergus County20.5Powell County: 20.5 %Powell County20.5Petroleum County: 20.4 %Petroleum County20.4Flathead County: 20.2 %Flathead County20.2Madison County: 20.1 %Madison County20.1Deer Lodge County: 19.3 %Deer Lodge County19.3Prairie County: 19.2 %Prairie County19.2Cascade County: 19.1 %Cascade County19.1Carbon County: 18.9 %Carbon County18.9Silver Bow County: 18.9 %Silver Bow County18.9Missoula County: 18.1 %Missoula County18.1Sweet Grass County: 18.1 %Sweet Grass County18.1Custer County: 18 %Custer County18Yellowstone County: 18 %Yellowstone County18Daniels County: 17.2 %Daniels County17.2Richland County: 16.8 %Richland County16.8Dawson County: 16.7 %Dawson County16.7Gallatin County: 16.1 %Gallatin County16.1Sheridan County: 16.1 %Sheridan County16.1Jefferson County: 15.6 %Jefferson County15.6Lewis and Clark County: 15.5 %Lewis and Clark County15.5Stillwater County: 15.5 %Stillwater County15.5Fallon County: 13.4 %Fallon County13.4
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2014 (%)Change on 2013
1Glacier County35.9-2.2 pts
2Big Horn County34.7-2 pts
3Blaine County33.9-1.6 pts
4Roosevelt County32.7-0.9 pts
5Lake County31-3.6 pts
6Wheatland County30.2-3.3 pts
7Sanders County29.9-4 pts
8Pondera County28.7-2.7 pts
9Chouteau County28-2.9 pts
10Phillips County27.3-3.6 pts
11Judith Basin County26-3 pts
12Carter County25.1-6.3 pts
13McCone County24.7-8.7 pts
14Golden Valley County24-9.1 pts
15Wibaux County23.7-3.8 pts
16Meagher County23.6-7.7 pts
17Rosebud County23.5-3 pts
18Lincoln County23.1-3.9 pts
19Granite County23-5.6 pts
20Mineral County22.8-3.6 pts
21Musselshell County22.7-4.8 pts
22Garfield County22.6-12.3 pts
22Hill County22.6-4.8 pts
22Ravalli County22.6-5.4 pts
25Toole County22.4-1 pts
26Treasure County22.3-5.9 pts
27Liberty County22.2-3.6 pts
27Teton County22.2-4.4 pts
29Valley County22-5.2 pts
30Beaverhead County21.7-4.2 pts
31Broadwater County21.6-4.1 pts
32Park County21.3-3.9 pts
33Powder River County20.7-5.4 pts
34Fergus County20.5-3.2 pts
34Powell County20.5-5.1 pts
36Petroleum County20.4-6.5 pts
37Flathead County20.2-4.7 pts
38Madison County20.1-3.3 pts
39Deer Lodge County19.3-3.3 pts
40Prairie County19.2-7.8 pts
41Cascade County19.1-2.3 pts
42Carbon County18.9-6.3 pts
42Silver Bow County18.9-1.6 pts
44Missoula County18.1-4.3 pts
44Sweet Grass County18.1-4.2 pts
46Custer County18-3.6 pts
46Yellowstone County18-3.1 pts
48Daniels County17.2-0.3 pts
49Richland County16.8-2.5 pts
50Dawson County16.7-2 pts
51Gallatin County16.1-3.2 pts
51Sheridan County16.1-4.4 pts
53Jefferson County15.6-3.4 pts
54Lewis and Clark County15.5-2 pts
54Stillwater County15.5-1.9 pts
56Fallon County13.4-4 pts

Other periods

About this ranking

People aged 18 to 64 without health insurance coverage of any kind, as a percentage of all people aged 18 to 64. 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. Working-age adults; the rate for everyone under 65 is uninsured_rate_under_65.

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, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-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, ages 18 to 64, all races, both sexes, all income levels, states and counties (Counties in Montana by uninsured rate, ages 18 to 64 (US model-based estimate), 2014) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in Montana by uninsured rate, ages 18 to 64 (US model-based estimate), 2014. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/montana-counties?period=2014. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Counties in Montana by uninsured rate, ages 18 to 64 (US model-based estimate), 2014. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/montana-counties?period=2014.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in Montana by uninsured rate, ages 18 to 64 (US model-based estimate), 2014 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/montana-counties?period=2014 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_montana_by_2014,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in Montana by uninsured rate, ages 18 to 64 (US model-based estimate), 2014}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/montana-counties?period=2014. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in Montana by uninsured rate, ages 18 to 64 (US model-based estimate), 2014
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-2014-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/montana-counties?period=2014
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/montana-counties?period=2014.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip. Retrieved 2026-10-12.
ER  - 
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Questions

Which county has the highest uninsured rate, ages 18 to 64 (US model-based estimate)?

Glacier County, with 35.9% in 2014, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 18 to 64 (US model-based estimate)?

Fallon County, with 13.4% in 2014.

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, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, ages 18 to 64 (US model-based estimate): other rankings

Counties in Montana: more rankings