Average Health Insurance Premiums in South Dakota (2026)
The following estimates show typical unsubsidized monthly premiums for a 40-year-old single adult
in South Dakota in 2026. Actual costs vary significantly by ZIP code, age, and plan choice:
- Bronze HDHP: approximately $71–$161/month
- Bronze (standard): approximately $150–$283/month
- Silver: approximately $360–$545/month (lower end)
- Gold: approximately $360–$545/month (upper end)
Premiums increase with age and household size. Younger adults (20s, early 30s) pay less;
adults in their 50s and early 60s pay significantly more. Tobacco users pay a surcharge
in most states.
South Dakota expanded Medicaid in 2023. Sanford and Avera, the state's two dominant health systems, each have insurance subsidiaries competing with Wellmark BCBS.
How ACA Subsidies Reduce Your Premium in South Dakota
If your household income falls between 100% and 400% of the federal poverty level (roughly
$15,650–$62,600 for a single adult in 2026), you qualify for ACA premium tax credits
that directly reduce your monthly premium. The subsidy is calculated as the difference between
your benchmark Silver plan premium and a capped percentage of your income.
At income levels below 250% FPL, you also qualify for cost-sharing reductions (CSR) on Silver
plans that reduce deductibles, copays, and out-of-pocket maximums significantly.
Carriers in South Dakota (2026)
Marketplace carriers in South Dakota include: Wellmark BCBS, Sanford Health Plan, Avera Health Plans. The dominant carrier in most South Dakota
counties is Wellmark Blue Cross Blue Shield. Plan availability varies by county — check healthcare.gov for
exact options in your ZIP code.