# Counties in Montana by uninsured rate, ages 18 to 64 (US model-based estimate), 2024

All 56 values come from U.S. Census Bureau for 2024, so the places are comparable.

- Indicator id: `uninsured_rate_18_64`
- Unit: %
- Definition: 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.
- 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 (https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-csv.zip)
- Publisher page: https://invokely.ai/en/publishers/us-census-bureau
- Retrieved: 2026-10-12
- Citation: 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-2024-csv.zip. Retrieved 2026-10-12.
- Web page: https://invokely.ai/rankings/uninsured-rate-ages-18-64/montana-counties

| Rank | Place | % |
|---:|---|---:|
| 1 | Golden Valley County | 20.1 |
| 1 | Sanders County | 20.1 |
| 3 | Pondera County | 19.5 |
| 4 | Prairie County | 19.2 |
| 5 | Big Horn County | 18.5 |
| 6 | Wheatland County | 18.4 |
| 7 | Lincoln County | 17.5 |
| 8 | Lake County | 17.4 |
| 9 | Glacier County | 17 |
| 9 | Toole County | 17 |
| 11 | Musselshell County | 16.8 |
| 12 | Liberty County | 16.7 |
| 13 | Carter County | 16.5 |
| 14 | Judith Basin County | 16 |
| 14 | Teton County | 16 |
| 16 | Blaine County | 15.9 |
| 16 | Garfield County | 15.9 |
| 16 | Valley County | 15.9 |
| 19 | Chouteau County | 15.6 |
| 20 | Roosevelt County | 15.4 |
| 21 | McCone County | 15 |
| 22 | Broadwater County | 14.8 |
| 23 | Madison County | 14.5 |
| 24 | Sheridan County | 14.4 |
| 25 | Hill County | 14.2 |
| 25 | Meagher County | 14.2 |
| 27 | Rosebud County | 14 |
| 28 | Treasure County | 13.9 |
| 29 | Ravalli County | 13.8 |
| 30 | Mineral County | 13.6 |
| 31 | Carbon County | 13.4 |
| 31 | Flathead County | 13.4 |
| 31 | Powell County | 13.4 |
| 34 | Beaverhead County | 13.2 |
| 35 | Granite County | 13.1 |
| 36 | Jefferson County | 12.8 |
| 37 | Custer County | 12.6 |
| 38 | Wibaux County | 12.4 |
| 39 | Fergus County | 12.2 |
| 39 | Powder River County | 12.2 |
| 41 | Fallon County | 12.1 |
| 42 | Richland County | 11.9 |
| 43 | Cascade County | 11.8 |
| 44 | Daniels County | 11.6 |
| 44 | Silver Bow County | 11.6 |
| 44 | Stillwater County | 11.6 |
| 44 | Yellowstone County | 11.6 |
| 48 | Phillips County | 11.2 |
| 49 | Sweet Grass County | 11.1 |
| 50 | Dawson County | 10.7 |
| 50 | Lewis and Clark County | 10.7 |
| 52 | Missoula County | 10.3 |
| 53 | Gallatin County | 9.9 |
| 53 | Park County | 9.9 |
| 55 | Deer Lodge County | 9.7 |
| 56 | Petroleum County | 9.6 |