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State Health Policy and Data

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Tracking Insurer Exits and Entries in the ACA Marketplaces. U.S. map shows that as of June 8, 2026, six carriers across 18 states have announced that they will exit the ACA Marketplaces partially or fully for plan year 2027.

Tracking Insurer Participation Changes in the ACA Marketplaces in 2027

As of June 8, six health insurers have announced that they will exit ACA Marketplaces in 18 states next year, potentially leaving hundreds of thousands of ACA enrollees with fewer insurance options. KFF’s new tool tracks changes in ACA insurer participation, including the recently announced exits by Cigna Health, CareSource, PacificSource, Providence Health, Scott and White, and Taro Health.

State by State Data

More than 800 up-to-date, state-level health indicators can be mapped, ranked, and downloaded.

Explore the latest national and state-specific data and policies on women’s health, including health status, insurance coverage, use of preventive services, and more.

Most "dual-eligible" individuals (8.9 million in 2024) are eligible for Medicaid benefits that are not otherwise covered by Medicare, including long-term care.

Use this tool to build a custom report compiling health-related data for a single state or multiple states.

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  • The Role of Medicaid in State Economies and the ACA

    Issue Brief

    This brief summarizes findings from 32 studies in 26 states analyzing the anticipated impact of the Affordable Care Act Medicaid expansion (and in some cases full ACA implementation) on state and local economies.

  • Getting into Gear for 2014: Shifting New Medicaid Eligibility and Enrollment Policies into Drive

    Report

    On January 1, 2014, many key provisions of the Affordable Care Act (ACA) will start to go into effect, including the expansion of Medicaid to low-income adults and the launch of new Medicaid eligibility and enrollment processes, which are designed to move toward a coordinated enrollment system across health coverage programs, including Medicaid, CHIP, and the new Health Insurance Marketplaces. Over the past year, states have made steady and significant progress preparing for these changes,…

  • Health Insurance Coverage of Women, State Estimates

    Fact Sheet

    This fact sheet, Health Insurance Coverage of Women, provides state-by-state data on the uninsured rate, as well as rates of private insurance coverage and Medicaid coverage, among women nationally, in the 50 states and the District of Columbia.

  • State-by-State Estimates of the Number of People Eligible for Premium Tax Credits Under the Affordable Care Act

    Issue Brief

    Key provisions of the 2010 Affordable Care Act (ACA) create new Marketplaces for people who purchase insurance directly and provide new premium tax credits to help people with low or moderate incomes afford that coverage. This analysis estimates that about 17 million people who are now uninsured or who buy insurance on their own (“nongroup purchasers”) will be eligible for premium tax credits in 2014. This issue brief provides national and state estimates for tax…

  • Managing a High Performing Medicaid Program

    Report

    This report discusses key responsibilities that the federal government and states hold for managing the Medicaid program and identifies the key issues and challenges states face as they transform the way they do business and achieve key national goals. The paper relies on an extensive review of federal and state administrative responsibilities drawn from statute, regulation, and relevant literature, coupled with discussions with six current Medicaid directors.

  • CHIP Enrollment: June 2012 Data Snapshot

    Issue Brief

    This issue brief updates monthly enrollment data for the Children's Health Insurance Program (CHIP) across all 50 states and DC to include June 2012 data.

  • Medicaid Enrollment: June 2012 Data Snapshot

    Issue Brief

    This issue brief updates our monthly Medicaid enrollment figures to include data as of June 2012. The issue brief discusses enrollment trends across all 50 states and DC as well as within select groups such as Families, the Aged & Disabled, as well as adult expansions (largely focusing on adults without dependent children or childless adults).

  • A Discussion with Leading Medicaid Directors: As FY 2013 Ends, Looking toward Health Care Reform Implementation in 2014

    Issue Brief

    The Kaiser Commission on Medicaid and the Uninsured convened a focus group discussion with Medicaid directors who serve on the Board of the National Association of Medicaid Directors (NAMD). The discussion focused on state progress and concerns about implementing the ACA including eligibility system changes and state action on the Medicaid expansion decision as well as activity around payment and delivery system reform, and other budget and enrollment trends. The discussion took place in May…