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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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  • Medicaid and Managed Care: Key Data, Trends, and Issues

    Issue Brief

    This brief provides a snapshot of the Medicaid program's use of managed care to deliver services to beneficiaries. It examines the prevalence of managed care in state Medicaid programs; the various approaches states have used, including primary-care case management; managed care for long-term services and for beneficiaries dually eligible for Medicaid and Medicare; and evidence of cost-savings.   ISSUE BRIEF Download

  • Secrets to Success: An Analysis of Four States at the Forefront of the Nation’s Gains in Children’s Health Coverage

    Issue Brief

    This analysis, based on site visits and interviews with key stakeholders, examines the experiences of Alabama, Iowa, Massachusetts and Oregon in significantly improving health coverage of children in recent years through Medicaid and the Children's Health Insurance Program. Several common themes underlie these states' successful efforts: At least one state political leader made coverage of children a top priority. All four states have expanded eligibility for children to 300 percent of poverty and have streamlined…

  • Performing Under Pressure: Annual Findings of a 50-State Survey of Eligibility, Enrollment, Renewal, and Cost-Sharing Policies in Medicaid and CHIP, 2011-2012

    Report

    The annual 50-state survey of Medicaid and CHIP eligibility rules, enrollment and renewal procedures and cost-sharing practices, conducted by the Kaiser Commission on Medicaid and the Uninsured with the Georgetown University Center for Children and Families, found that, despite continued fiscal pressures on states, eligibility policies remained stable in nearly all state Medicaid and Children's Health Insurance Programs during 2011. Moreover, many states used technology to increase program efficiency and streamline enrollment. The "maintenance of…

  • Medicaid Enrollment and Expenditures by Federal Core Requirements and State Options

    Issue Brief

    To receive federal Medicaid matching funds, states that participate in Medicaid must meet federal requirements, which include covering specified “federal core” enrollee groups and mandatory health benefits. States also may choose to cover additional “state expansion” enrollees and optional benefits with federal Medicaid matching funds. The federal core eligibility standards have expanded incrementally over time, mostly for children and pregnant women, as the Medicaid program separated from welfare. Moreover, many states have taken up options…

  • Impact of the Medicaid Fiscal Relief Provisions in the American Recovery and Reinvestment Act (ARRA)

    Issue Brief

    The American Recovery and Reinvestment Act (ARRA), enacted in February 2009, has provided $103 billion in federal fiscal relief to state Medicaid programs over a period of two-and-a-half years to help them address the effects of the 2007-2009 recession. During a recession, unemployment increases and state revenues decline, making it difficult for states to meet the increased demand for Medicaid coverage among the newly unemployed. This brief reviews the ARRA Medicaid fiscal relief provisions—how they…

  • Update: State Budgets in Recession and Recovery

    Issue Brief

    State revenues have been rebounding after experiencing a severe decline caused by the Great Recession that ran from December 2007 through June 2009. Nevertheless, tax collections remain below their 2008 peak level and state and local governments continue to shed jobs. As states prepare their fiscal year 2013 budgets, some are projecting a fifth consecutive year of gaps between expected revenues and spending. This policy brief analyzes recent developments in state government finances and prospects…

  • How Competitive Are State Health Insurance Markets?

    Issue Brief

    Beginning in 2014, state-based health insurance exchanges will be created to facilitate coverage and choice, with the hope that enhanced competition among insurers will help to moderate premiums for individuals and small groups. This analysis by the Foundation assesses the competitiveness of state insurance markets for individuals and small businesses to establish a baseline as implementation of the health reform law proceeds and to provide context for the policy decisions states will be considering. The…

  • A Profile of Medicaid Managed Care Programs in 2010: Findings from a 50-State Survey

    Report

    Most Medicaid beneficiaries nationally are enrolled in some form of managed care, and, with current budget pressure and health reform on the horizon, states are expected to increase their reliance on managed care to deliver services in their Medicaid programs. This 50-state survey, conducted by the Kaiser Commission on Medicaid and the Uninsured and Health Management Associates, provides a comprehensive look at state Medicaid managed care programs, documenting their diversity, examining how states monitor access…

  • Mapping Premium Variation in the Individual Market

    Issue Brief

    This analysis examines how premiums for individual health insurance differ around the nation, finding that premiums can vary substantially from state to state. The average per-person premium in 2010 ranged in cost from approximately $136 per month in Alabama to more than $400 per month in Vermont and Massachusetts. The average across all states was $215 per member per month. Given the fragmentation of the market and the lack of public data available about individual…

  • An Overview of Changes in the Federal Medical Assistance Percentages (FMAPs) for Medicaid

    Issue Brief

    The joint federal-state financing of the Medicaid program works through a matching mechanism known as the Federal Medical Assistance Percentage (FMAP). This mechanism determines the federal and state shares of Medicaid costs based on a state's per capita personal income relative to the national average. While the FMAP formula has remained unchanged since the enactment of the Medicaid program in 1965, changes in per capita income have resulted in substantial changes in the federal and…