North Dakota · FIPS 38105
Williams County, ND — ACA coverage
Marketplace plans, premium tax credit eligibility, and Medicaid options for residents of Williams County, North 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 Williams 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 Williams 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 North Dakota.
Formula used here: 42,901 total state signupsi ÷ 53 North Dakota countiesi = ~809 estimated enrollees for Williams 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 Williams County
Residents of Williams County shop and enroll in ACA marketplace plans at www.healthcare.gov. Plans are rated by county, so available carriers and prices in Williams may differ from elsewhere in North Dakota.
Carriers currently selling in North Dakota include: Blue Cross Blue Shield of North Dakota, Medica, Sanford Health Plan. The final 2027 carrier list for Williams County is confirmed when North 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 North Dakota subsidy & income tables.
Medicaid & CHIP in Williams County
Williams County residents may qualify for Medicaid up to 138% of the Federal Poverty Level under North Dakota's adopted ACA Medicaid expansion.
Healthy Steps covers children up to 175% FPL; pregnancy Medicaid covers up to 162% FPL. Apply year-round at www.hhs.nd.gov/healthcare/chip · 1-877-543-7669.
Open Enrollment & SEP
2026 OEP in North 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 North Dakota OEP & SEP details.
Other North Dakota counties
Sources
- North 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.