Illinois Health Insurance

From the shores of Lake Michigan to the prairies of the Midwest, Illinois remains a desirable place to live, and understanding your health insurance options here is key to protecting your health and finances.

As of 2025, the uninsured rate in Illinois reflects continued improvement in coverage access, thanks in large part to Medicaid expansion and broad participation in ACA marketplace plans. If you’re currently without coverage, here’s what you need to know about getting insured in Illinois.

Health Insurance Options in Illinois

Illinois offers a range of health insurance options tailored to residents’ needs, depending on age, income, employment, and family size. Here are the most common coverage types available:

Employer-Sponsored Insurance

Many Illinois residents receive health insurance through their employer. If your workplace offers coverage, this is usually the most cost-effective and convenient option.

ACA Marketplace Plans

The Affordable Care Act (ACA) allows individuals and families to buy health insurance through federal or state Marketplaces. In Illinois, coverage is offered through the state’s official ACA marketplace, Get Covered Illinois. These plans offer essential health benefits, free preventive care, and protection for preexisting conditions.

Individuals and families without employer coverage can shop for insurance through Get Covered Illinois. If you don’t have employer coverage, you may qualify for subsidies to lower your premiums. Use our ACA Subsidy Calculator to check your eligibility.

Starting this year, the Centers for Medicare & Medicaid Services (CMS) is requiring income verification to confirm eligibility for premium subsidies. As part of this effort, CMS will reduce the ACA subsidies by $5 per month for individuals who are automatically re-enrolled in fully subsidized plans without verified eligibility.

ACA Plan Types

ACA marketplace plans are available in four tiers: Bronze, Silver, Gold, and Platinum, each with distinct costs and coverage levels. Plans also vary by provider networks and out-of-pocket expenses, so compare carefully to find what fits your needs.

Marketplace Plans:

• Bronze: Low monthly premiums, higher out-of-pocket costs; ideal for minimal healthcare usage.
• Silver: Moderate costs; eligible for cost-sharing reductions (CSRs).
• Gold: Higher monthly premiums with lower out-of-pocket costs; best for frequent healthcare users.
• Platinum (if available): Highest premiums, lowest out-of-pocket costs.

Metal Tier Breakdown:

Short-Term Medical Plans

Short-term medical (STM) plans offer temporary health coverage and can be a practical solution for individuals who are between jobs, recently lost employer coverage, waiting for ACA or Medicare eligibility, or need affordable protection during a coverage gap.

These plans are available in this state and follow federal rules, but they are not regulated by the ACA. That means they can deny coverage based on pre-existing conditions and typically do not include comprehensive benefits like maternity, mental health, or preventive care.

While short-term medical plans are not a substitute for long-term health insurance, they may be ideal in situations where you’re temporarily uninsured—such as after job loss or before new coverage begins—and want short-term protection from unexpected medical events.

STM Plan Enrollment

Unlike ACA-compliant plans, you can enroll in short-term health plans year-round.

Quick Coverage Start: Many short-term plans can begin as soon as the next day after your application is approved.

Medicaid

Illinois’ Medicaid program provides free or low-cost coverage for eligible low-income residents. Medicaid benefits typically include preventive care, hospital visits, mental health services, prescriptions, and more.

Illinois has expanded Medicaid under the ACA, offering coverage to more low-income adults who previously weren’t eligible.

Children’s Health Insurance Program (CHIP)

Known as All Kids in Illinois, this program helps children and pregnant women in families that earn too much for Medicaid but need affordable insurance. It provides medical, dental, vision, and prescription coverage regardless of a child’s health or immigration status.

Student Health Insurance

College students in Illinois have several options for health insurance, including:

• Remaining on a parent’s plan until age 26
• Enrolling in a school-sponsored student health plan
• Purchasing a plan through Get Covered Illinois

Students may also qualify for Medicaid, CHIP, or low-cost catastrophic or short-term plans, making Illinois student health insurance accessible and flexible for a wide range of needs.

Medicare

Medicare plans are available for residents aged 65+ and younger individuals with qualifying disabilities. Options include:

• Medicare Advantage (Part C)
  • Medicare Advantage is an alternative to Original Medicare offered by private insurers to those enrolled in Parts A and B. These plans often include extra benefits and cost protections but typically require using a specific network of providers.
• Prescription Drug Plans (Part D)
  • Medicare Part D provides prescription drug coverage for anyone with Medicare, helping pay for medications and many vaccines. Offered by private insurers, these plans vary in cost and coverage and can be joined during specific enrollment periods.
• Medicare Supplement (Medigap)
  • Medicare Supplement plans, or Medigap policies, help cover the out-of-pocket costs that Medicare Part A and Part B don’t pay. Since Original Medicare (Parts A and B) lacks an out-of-pocket maximum, these plans can limit your expenses for medical services.

COBRA Coverage

If you’ve recently lost job-based insurance, COBRA allows you to continue your employer coverage temporarily, typically at full cost. This is often a helpful option during periods of job transition.

Enrollment Periods in Illinois

Open Enrollment for 2026 Coverage:

November 1, 2025 – January 15, 2026

During this window, all eligible residents can apply for, renew, or change their marketplace health plans.

Special Enrollment Period:

Available year-round for those experiencing qualifying life events (QLE), such as:

• Loss of coverage
• Marriage or divorce
• Birth or adoption of a child
• Relocation
• Major change in income

You typically have 60 days from the event to enroll.

Health Insurance Providers in Illinois

As of 2025, these insurers typically offer individual and family plans through Get Covered Illinois:

• Bright Health Insurance Company of Illinois
• Celtic Insurance Company
• CIGNA Healthcare of Illinois
• Health Alliance Medical Plans
• Health Care Service Corporation, (HCSC, aka Blue Cross Blue Shield)
• MercyCare HMO
• Oscar
• Quartz Health Benefit Plans Corporation
• SSM Health Plan

Plan availability may vary by county or zip code. Some carriers may also offer standardized plans if Illinois provides a public option or similar initiative.

Understanding Health Insurance Costs

When selecting a plan, be sure to understand these common cost terms:

• Premium: Monthly payment to maintain your plan.
• Deductible: What you pay before insurance covers services.
• Copayment (Copay): Fixed amount per visit/service.
• Coinsurance: Shared costs with your insurer after the deductible.
• Out-of-Pocket Maximum: Your yearly cost cap for covered services.
• In-Network vs. Out-of-Network: Staying in-network helps you avoid higher charges.

Understanding health insurance doesn’t have to be overwhelming. This glossary offers clear definitions of key terms—from agents to costs like copayments, coinsurance, and deductibles—to help you make confident coverage decisions.

Bottom Line

Health insurance in Illinois comes with many choices—whether from your employer, through the ACA marketplace, or public programs like Medicaid and Medicare. By staying informed and comparing plans during the right enrollment periods, you can secure affordable, reliable coverage that supports your well-being and budget.

Need help choosing a plan? Use our ACA Subsidy Calculator to see if you are eligible for ACA plan financial aid or speak with a licensed insurance agent about all your options.