Health insurance in Gallatin County, Montana
3 insurers sell 39 marketplace plans here, and 8.9% of under-65 residents have no coverage at all.
Source: CMS Marketplace Open Enrollment Public Use Files and US Census Small Area Health Insurance Estimates, 2026 release.
Who sells here, and how much choice that gives
3 insurers sell marketplace plans in Gallatin County, offering 39 plans between them, roughly 13 each. It gained 2 since the previous plan year, up from 1.
How many people here have no coverage
8.9% of Gallatin County's 106,997 under-65 residents have no health coverage — 9,529 people. That is below the Montana rate of 11.1%, and puts Gallatin County in the middle half of the 1,817 counties on this site (1255th).
How much the marketplace is used
11,092 Gallatin County residents selected a marketplace plan for 2026: 104 per thousand under-65 residents, 742nd of 1,817. That is above the 78 per thousand typical of published counties. 1,812 of them — 16% — were new rather than renewing.
Gallatin County against Montana
Gallatin County is the 2nd largest of the 4 Montana counties we publish. Its uninsured rate runs 2.2 points lower than Montana overall and it carries the same 3 insurers as every other county in the state. Marketplace use is close to the Montana rate.
| Gallatin County | Montana | Published median | |
|---|---|---|---|
| Uninsured, under 65 | 8.9% | 11.1% | 9.9% |
| Insurers selling | 3 | 3–3 | 4 |
| Plans offered | 39 | — | 57 |
| Selections per 1,000 | 104 | 83 | 78 |
| New rather than renewing | 16% | 14% | 15% |
Counties of a similar size nearby
| County | Under 65 | Uninsured | Insurers | Plans |
|---|---|---|---|---|
| Citrus County (Florida) | 107,005 | 13.7% | 4 | 106 |
| Calhoun County (Michigan) | 106,849 | 6.8% | 6 | 72 |
| Monroe County (Indiana) | 107,596 | 8.0% | 3 | 47 |
| Florence County (South Carolina) | 107,661 | 10.1% | 4 | 57 |
Calhoun County has 6 insurers against this county's 3 — a reminder that the county line, not the state line, is what decides your options.
All Montana counties · How the credit works · Enrollment dates