Health insurance cost in Illinois
If you're moving to Illinois without job-based coverage, here's what a Marketplace plan costs before subsidies. Illinois ranks #33 of 51 for the lowest benchmark premium.
Monthly premium by age
| Age | Benchmark silver | Cheapest bronze |
|---|---|---|
| 21 | $505 | $341 |
| 30 | $574 | $387 |
| 40 | $646 | $436 |
| 50 | $902 | $609 |
| 60 | $1,372 | $926 |
| 64 | $1,516 | $1,023 |
Scaled from the age-40 average with the federal default age curve, which lets insurers charge a 64-year-old up to 3× what a 21-year-old pays. Excludes tobacco surcharges.
The Illinois benchmark rose 36% for 2026, more than the 26% national increase, leaving it 3% above the U.S. average for a 40-year-old.
What is different in Illinois
- Where to enroll
- Get Covered Illinois
- Open enrollment for 2027
- Check the marketplace
- Marketplace insurers, 2026
- 7
- Medicaid expansion
- Since Jan 2014
- Penalty if uninsured
- None
- Average paid after credits, 2026
- $230/mo
- Where and when. Illinois runs its own marketplace, Get Covered Illinois, so you apply there rather than at HealthCare.gov. Get Covered Illinois sets its own open-enrollment dates. We couldn't confirm the 2027 dates on an official page when we checked in September 2026, so check its site before you move.
- Choice of insurers. 7 insurers sell Marketplace plans in Illinois for 2026, down from 10 in 2025. Not every insurer sells in every county, so your choices depend on where you live. 448,568 people picked a Marketplace plan here for 2026, down 4% from 2025.
- What enrollees paid. Enrollees here paid an average of $230 a month after tax credits for 2026, up 21% from the $190 they paid for 2025 (U.S. average: $178). Before credits, the plans they chose averaged $816.
- Medicaid. Illinois expanded Medicaid in January 2014, when the ACA expansion took effect. Adults with income up to 138% of the federal poverty level can generally get Medicaid instead of a Marketplace plan. A state "trigger" law would end the expansion or force cost cuts if federal funding for it is reduced.
- Going uninsured. Illinois doesn't charge a penalty for going without coverage, and the federal penalty ended after 2018. In 2024, 6.8% of residents had no health insurance (U.S.: 8.2%), and 5.2% bought their own coverage.
Subsidies in 2026
The enhanced premium tax credits of 2021–2025 expired, so 2026 follows the original ACA rules: credits are available for household incomes between 100% and 400% of the federal poverty level, and you're expected to pay between about 2.1% and 9.96% of income for the benchmark plan. Above 400% there's no federal credit. Check your price at Get Covered Illinois.
Frequently asked questions
How much is health insurance in Illinois in 2026?
The benchmark silver plan for a 40-year-old averages $646 a month before subsidies, and the cheapest bronze plan $436 (KFF analysis of CMS data). That's up 36% from 2025.
How much does health insurance cost for a 60-year-old in Illinois?
About $1,372 a month for the benchmark silver plan before subsidies, using the federal default age curve.
Did Illinois expand Medicaid?
Illinois expanded Medicaid in January 2014, when the ACA expansion took effect. Adults with income up to 138% of the federal poverty level can generally get Medicaid instead of a Marketplace plan. A state "trigger" law would end the expansion or force cost cuts if federal funding for it is reduced.