Average Health Insurance Premiums in Illinois (2026)
The following estimates show typical unsubsidized monthly premiums for a 40-year-old single adult
in Illinois in 2026. Actual costs vary significantly by ZIP code, age, and plan choice:
- Bronze HDHP: approximately $78–$172/month
- Bronze (standard): approximately $160–$300/month
- Silver: approximately $380–$580/month (lower end)
- Gold: approximately $380–$580/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.
Illinois expanded Medicaid in 2013. The Chicago metro has the widest carrier selection. Downstate Illinois often has fewer options. BCBS of Illinois is the dominant statewide carrier.
How ACA Subsidies Reduce Your Premium in Illinois
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 Illinois (2026)
Marketplace carriers in Illinois include: BCBS of Illinois, Ambetter from Celtic Insurance, Aetna, Cigna, Molina Healthcare, Oscar Health. The dominant carrier in most Illinois
counties is Blue Cross Blue Shield of Illinois. Plan availability varies by county — check healthcare.gov for
exact options in your ZIP code.
Illinois Medicaid (MMAI): Free or Low-Cost Coverage in Illinois
Illinois expanded Medicaid in 2013. Adults earning up to 138% FPL qualify for Medicaid in Illinois. Apply at abe.illinois.gov.