Montana Marketplace intelligence

Montana ACA Marketplace coverage, explained with current sources.

Montana uses HealthCare.gov for Marketplace enrollment. CMS reports 73,255 cumulative 2026 Open Enrollment plan selections across Montana counties in the 2026 County-Level Public Use File.

Source: Centers for Medicare & Medicaid Services · Verified September 17, 2026

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2026 Montana Marketplace73,255 plan selectionsGallatin County leads Montana with 11,092 selections. CMS county-level OEP data; not a personal quote.

State evidence snapshot

What stands out in Montana's 2026 Marketplace data?

Across the 56 counties in this CoveragePath CMS dataset, CMS reports 73,255 Marketplace plan selections. The largest county total is Gallatin County with 11,092 selections.

77.6% of selections in counties with unsuppressed APTC counts received advance premium tax credits. The selection-weighted county premium benchmarks are $729 before APTC and $230 after APTC. These are historical county aggregates, not household quotes.

What stands out in Montana

Turn statewide totals into local context.

73,255

2026 CMS Marketplace plan selections represented across 56 county records.

Gallatin County

11,092 selections, 15.1% of the state total represented in this county dataset.

$729

Selection-weighted county average gross premium where CMS reports the measure.

$639

Selection-weighted county average APTC where CMS reports the measure.

Largest county markets in the file:Gallatin · 11,092Flathead · 9,395Missoula · 8,221

CoveragePath calculations use 2026 CMS county public-use-file measures. Weighted figures are descriptive historical benchmarks, not 2027 quotes, plan availability or eligibility determinations.

What the Montana data can tell you

Enrollment

Use current CMS enrollment data to understand Marketplace participation without treating plan selections as active enrollment or a guarantee of coverage.

Financial assistance

Eligibility for premium tax credits depends on current federal rules and household circumstances. CoveragePath verifies rule changes before publishing numeric guidance.

County intelligence

CoveragePath now publishes verified 2026 CMS Marketplace benchmarks for 56 Montana counties, including enrollment, premium and APTC measures.

2026 ACA Marketplace data by Montana county

Choose your county to review its verified CMS Marketplace enrollment, premium and financial-assistance benchmarks. County figures are historical measures, not a quote or guarantee of eligibility or plan availability.

Continue your coverage path

Start with eligibility factors, then review savings and Special Enrollment guidance. Final eligibility and plan availability must be verified through the Marketplace.

Eligibility Savings Special Enrollment