South Dakota · FIPS 46019
Butte County, SD — ACA coverage
Marketplace plans, premium tax credit eligibility, and Medicaid options for residents of Butte County, South Dakota. Updated 2026-06-08.
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Enrollee count is an estimate derived by evenly distributing the state's CMS plan-select total across counties; actual county enrollment varies with population.
How the Butte County estimate is calculated
Methodology: ACA Beacon does not have county-level enrollment dashboards for every U.S. county. To give you a directional sense of marketplace activity in Butte County, we take the most recent state-wide Open Enrollment Period (OEP) plan-selection total reported by CMSi (or the state-based marketplace) and divide it evenly by the number of counties in South Dakota.
Formula used here: 54,721 total state signupsi ÷ 66 South Dakota countiesi = ~829 estimated enrollees for Butte County.
Uncertainty & limitations: Counties vary widely in population, income, and insurer participation. Urban counties typically enroll far more residents than rural ones. This number is a simple average, not a forecast or official CMS county report. Use it as a rough indicator of statewide penetration, not a precise local count.
Last updated 2026-06-08. Data source: CMS OEP state-level plan-selection reports.
ACA marketplace in Butte County
Residents of Butte County shop and enroll in ACA marketplace plans at www.healthcare.gov. Plans are rated by county, so available carriers and prices in Butte may differ from elsewhere in South Dakota.
Carriers currently selling in South Dakota include: Avera Health Plans, Sanford Health Plan, Wellmark of South Dakota, Inc.. The final 2027 carrier list for Butte County is confirmed when South Dakota filings finalize in summer 2026.
Premium tax credit eligibility
Premium tax credits (APTC) cap your monthly premium for a benchmark Silver plan at a percentage of household income — currently 0% at 150% FPL up to 8.5% at 400%+ FPL while Inflation Reduction Act enhancements remain in effect. Cost-sharing reduction (CSR) Silver plans further reduce deductibles for households under 250% FPL.
Use our free subsidy calculator or see the full South Dakota subsidy & income tables.
Medicaid & CHIP in Butte County
Butte County residents may qualify for Medicaid up to 138% of the Federal Poverty Level under South Dakota's adopted ACA Medicaid expansion.
South Dakota CHIP covers children up to 209% FPL; pregnancy Medicaid covers up to 138% FPL. Apply year-round at dss.sd.gov/medicaid · 1-800-305-9673.
Open Enrollment & SEP
2026 OEP in South Dakota: November 1, 2026 – December 15, 2026. Missed it? You may still enroll within 60 days of a qualifying life event (job loss, marriage, birth, move, income change). See South Dakota OEP & SEP details.
Other South Dakota counties
Sources
- South Dakota marketplace(opens in a new tab)
- HealthCare.gov subsidies(opens in a new tab)
- KFF Medicaid expansion tracker(opens in a new tab)
- U.S. Census county FIPS reference(opens in a new tab)
- CMS CHIP & Medicaid(opens in a new tab)
- CMS OEP state-level plan-selection reports(opens in a new tab)
- CMS 2026 Star Ratings(opens in a new tab)
The information contained on this website is for educational purposes only. We are not responsible for missing or inaccurate information. Please consult a licensed insurance broker in your state and area for insurance advice. Please consult a CPA for tax or legal advice.