Coverage


State Health Facts is a KFF project that provides free, up-to-date, and easy-to-use health data for all 50 states, the District of Columbia, and the United States. It offers data on specific types of health insurance coverage, including employer-sponsored, Medicaid, Medicare, as well as people who are uninsured by demographic characteristics, including age, race/ethnicity, work status, gender, and income. There are also data on health insurance status for a state's population overall and broken down by age, gender, and income.

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  • A promotional image for the the KFF Health Policy 101 Medicare chapter

    The Uninsured Population and Health Coverage

    Feature

    This Health Policy 101 chapter examines the share of the United States population who are uninsured, highlighting their demographics and the challenges they face because of the lack of coverage. Economic conditions, federal and state policy decisions, and major health crises like the COVID-19 pandemic influence the uninsured rate. While implementation of the Affordable Care Act, namely the expansion of Medicaid and availability of subsidized Marketplace coverage, led to a drop in the share of people who are uninsured, disparities in coverage persist and policy changes in the 2025 budget reconciliation bill are expected to increase the size of the population.

  • A promotional image for the the KFF Health Policy 101 Medicaid chapter

    Medicaid 101

    Feature

    This Health Policy 101 chapter explores Medicaid, the primary U.S. program providing comprehensive coverage of health care and long-term services and supports to about 80 million low-income people. Originating in 1965 and expanding with the Affordable Care Act, the chapter reviews Medicaid's evolution, including 2025 changes, and its joint federal and state financing and administration. It discusses how state-level flexibility in managing Medicaid leads to variation in coverage, spending, health care delivery, and access across different states.

  • A promotional image for the the KFF Health Policy 101 Medicare chapter

    Medicare 101

    Feature

    This Health Policy 101 chapter explores Medicare, a federal health insurance program covering more than 68 million people, established in 1965 for people age 65 or older and later expanded to cover people under age 65 with long-term disabilities. In addition to detailing Medicare eligibility, coverage, and spending, the chapter examines the increased role of private plans in providing benefits and the financing challenges posed by increasing health care costs and an aging population.

  • Challenges and Strategies in Expanding Non-Traditional Pregnancy-Related Services: Findings from a Survey of State Medicaid Programs

    Issue Brief

    A growing number of states have added Medicaid coverage of non-traditional pregnancy-related care and services in recent years, such as doula services, lactation services, and home visiting programs, to promote better maternal and infant health outcomes and reduce racial/ethnic health disparities. This brief explores state strategies and challenges in promoting access to these services.

  • A promotional image for the the KFF Health Policy 101 Medicare chapter

    The Affordable Care Act 101

    Feature

    This Health Policy 101 chapter provides an overview of the Affordable Care Act (ACA), a major reform of the U.S. health care system aimed at reducing high uninsured rates and alleviating issues like high out-of-pocket costs and coverage exclusions for preexisting conditions. The ACA significantly altered many aspects of the health system and the chapter explores its mechanisms, such as the Health Insurance Marketplaces, and the evolution of the law since its passage in 2010 to the changes in the 2025 budget reconciliation law.

  • State Health Coverage for Immigrants and Implications for Health Coverage and Care

    Issue Brief

    Noncitizen immigrants, particularly those who are undocumented, face significant barriers to accessing health coverage and care and are significantly more likely than citizens to be uninsured. Some states have taken up options in Medicaid and the Children’s Health Insurance Program (CHIP) to expand coverage for lawfully present immigrants and/or established fully state-funded programs to fill gaps in coverage for immigrants. This brief provides an overview of state health coverage programs for immigrants regardless of status and examines how health coverage for immigrants vary by state coverage policies using data from the 2023 KFF/LA Times Survey of Immigrants.

  • Forward or Backward on the Uninsured?

    From Drew Altman

    In this column, KFF President and CEO Drew Altman looks back at the remarkable progress made in expanding coverage for the uninsured and what it could mean politically for today’s remaining uninsured—a population that has had little clout historically and will command even less attention now.

  • Key Characteristics of Infants and Implications of the Recent Formula Shortage

    Issue Brief

    In recent weeks, the United States has been grappling with a baby formula shortage following supply chain issues, a voluntary recall, and the closing of a plant that produces a large share of the country’s formula. Since it is recommended that infants receive breast milk or formula until they are age one, this shortage has had a significant impact across the country. Infants in low-income families and infants of color, who are often covered by Medicaid, may be particularly impacted by the shortage resulting in potential short and long-term health risks.