355
2026 Marketplace plan selections reported by CMS.
Montana Marketplace intelligence
2027 ACA Marketplace in Sheridan County
Use verified 2026 CMS county evidence as a local benchmark while comparing 2027 Marketplace coverage. Historical averages are context, not a personal quote or current plan list.
87.6%
of selections received advance premium tax credits (APTC).
$800 → $215
Average monthly premium and average after APTC among the CMS county measures.
Local premium benchmark
How the CMS averages compare
These county averages describe 2026 Marketplace selections; they are not a personal quote.
Average premium$800
Average after APTC$215
$585 lower on average among the reported measures (73% difference).
What this means when comparing coverage
CMS reports 311 APTC recipients in the county, with average APTC of $668. These are county-level historical Marketplace measures, not a quote or guarantee of your eligibility, premium, savings, plan availability, or provider network.
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Local evidence
What stands out in Sheridan County's 2026 ACA Marketplace data?
CMS reports 355 plan selections in Sheridan County. That ranks #36 of 56 Montana counties in this CoveragePath CMS dataset by Marketplace selections. This is enrollment context, not an estimate of how many county residents are eligible.
87.6% of reported selections received APTC. The average premium was $800 and the average after APTC was $215 — a $585 difference in these county-level CMS averages. These averages are not a personal quote or subsidy estimate.
For separate population context, the 2024 ACS uninsured estimate is 7.3%. ACS population insurance statistics and ACA Marketplace eligibility are different measures.
How Sheridan County compares with Montana
Sheridan County accounts for about 0.5% of the 2026 Marketplace selections in this Montana county dataset. These comparisons use the same sourced county inventory shown on this page.
The county average premium is +$71 versus the selection-weighted Montana county benchmark of $729.
The county average after APTC is -$15 versus the selection-weighted benchmark of $230.
The ACS county uninsured estimate is -1.3 points versus the population-weighted Montana county benchmark of 8.6%.
Method: premium benchmarks are weighted by Marketplace plan selections; the ACS uninsured benchmark is weighted by the ACS county population universe. Suppressed CMS values are not estimated.
Population coverage context
Health coverage context in Sheridan County
7.3%
ACS estimate for the uninsured share of the Census S2701 population universe.
3,608
People in the ACS health-insurance coverage population universe for this county.
The U.S. Census Bureau's 2024 ACS 5-Year estimate describes population health-insurance coverage in Sheridan County. It is useful local context, but it does not measure ACA Marketplace eligibility, enrollment, premiums, subsidies, or plan availability. The Marketplace figures above come separately from CMS.
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Population context source: U.S. Census Bureau, 2020-2024 ACS 5-Year Subject Table S2701 · County FIPS 30091
Source: Centers for Medicare & Medicaid Services, 2026 OEP County-Level Public Use File · Verified September 19, 2026 · County FIPS 30091