Marketplace health plans in Montana, county by county
56 counties in Montana buy on HealthCare.gov. What is sold, and what it costs, changes at the county line: pick yours.
| County | Plans | Insurers | Cheapest at 40 | Cheapest Silver | Average paid after credit |
|---|---|---|---|---|---|
| Beaverhead County | 30 | 3 | $313.41 | $708.14 | $207 |
| Big Horn County | 30 | 3 | $313.41 | $708.14 | $129 |
| Blaine County | 30 | 3 | $313.41 | $708.14 | $167 |
| Broadwater County | 30 | 3 | $356.99 | $748 | $254 |
| Carbon County | 42 | 3 | $312.41 | $550.61 | $255 |
| Carter County | 30 | 3 | $313.41 | $708.14 | $202 |
| Cascade County | 39 | 3 | $356.99 | $739.35 | $207 |
| Chouteau County | 30 | 3 | $356.99 | $748 | $222 |
| Custer County | 30 | 3 | $313.41 | $708.14 | $223 |
| Daniels County | 30 | 3 | $313.41 | $708.14 | $230 |
| Dawson County | 30 | 3 | $313.41 | $708.14 | $209 |
| Deer Lodge County | 30 | 3 | $356.99 | $748 | $212 |
| Fallon County | 30 | 3 | $313.41 | $708.14 | $207 |
| Fergus County | 30 | 3 | $313.41 | $708.14 | $244 |
| Flathead County | 39 | 3 | $317.10 | $655.91 | $229 |
| Gallatin County | 39 | 3 | $356.99 | $739.35 | $264 |
| Garfield County | 30 | 3 | $313.41 | $708.14 | $234 |
| Glacier County | 30 | 3 | $313.41 | $708.14 | $138 |
| Golden Valley County | 30 | 3 | $313.41 | $708.14 | $241 |
| Granite County | 30 | 3 | $313.41 | $708.14 | $195 |
| Hill County | 30 | 3 | $313.41 | $708.14 | $296 |
| Jefferson County | 30 | 3 | $356.99 | $748 | $253 |
| Judith Basin County | 30 | 3 | $356.99 | $748 | $265 |
| Lake County | 39 | 3 | $317.10 | $655.91 | $228 |
| Lewis and Clark County | 39 | 3 | $356.99 | $739.35 | $250 |
| Liberty County | 30 | 3 | $313.41 | $708.14 | $226 |
| Lincoln County | 30 | 3 | $313.41 | $708.14 | $175 |
| Madison County | 30 | 3 | $313.41 | $708.14 | $242 |
| McCone County | 30 | 3 | $313.41 | $708.14 | $169 |
| Meagher County | 30 | 3 | $313.41 | $708.14 | $234 |
| Mineral County | 30 | 3 | $313.41 | $708.14 | $241 |
| Missoula County | 39 | 3 | $317.10 | $655.91 | $238 |
| Musselshell County | 42 | 3 | $312.41 | $550.61 | $182 |
| Park County | 30 | 3 | $313.41 | $708.14 | $242 |
| Petroleum County | 30 | 3 | $313.41 | $708.14 | $189 |
| Phillips County | 30 | 3 | $313.41 | $708.14 | $231 |
| Pondera County | 30 | 3 | $313.41 | $708.14 | $196 |
| Powder River County | 30 | 3 | $313.41 | $708.14 | $226 |
| Powell County | 30 | 3 | $313.41 | $708.14 | $201 |
| Prairie County | 30 | 3 | $313.41 | $708.14 | $187 |
| Ravalli County | 30 | 3 | $313.41 | $708.14 | $225 |
| Richland County | 30 | 3 | $313.41 | $708.14 | $203 |
| Roosevelt County | 30 | 3 | $313.41 | $708.14 | $158 |
| Rosebud County | 30 | 3 | $313.41 | $708.14 | $198 |
| Sanders County | 30 | 3 | $313.41 | $708.14 | $205 |
| Sheridan County | 30 | 3 | $313.41 | $708.14 | $215 |
| Silver Bow County | 30 | 3 | $356.99 | $748 | $210 |
| Stillwater County | 39 | 3 | $312.41 | $550.61 | $257 |
| Sweet Grass County | 42 | 3 | $312.41 | $550.61 | $160 |
| Teton County | 30 | 3 | $356.99 | $748 | $198 |
| Toole County | 30 | 3 | $313.41 | $708.14 | $183 |
| Treasure County | 30 | 3 | $313.41 | $708.14 | $210 |
| Valley County | 30 | 3 | $313.41 | $708.14 | $250 |
| Wheatland County | 30 | 3 | $313.41 | $708.14 | $201 |
| Wibaux County | 30 | 3 | $313.41 | $708.14 | $164 |
| Yellowstone County | 42 | 3 | $312.41 | $550.61 | $219 |
Open enrollment for 2026 coverage runs 1 November 2025 to 15 January 2026 in most states. Outside that window you need a qualifying life event — losing other coverage, moving, marrying, having a child — to enrol.
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Premiums, deductibles, out-of-pocket maximums and cost sharing are reproduced from the HealthCare.gov Qualified Health Plan landscape file published by the Centers for Medicare & Medicaid Services. Nothing on this page is calculated by us. This is not a complete list of your options and it is not advice: to see every plan and to enrol, use HealthCare.gov or call 1-800-318-2596.