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Uninsured

Data and analysis

The coverage gap exists because some states did not expand Medicaid under the ACA to cover adults under age 65 without dependent children with incomes at/below 138% of the federal poverty level (FPL)

How Many Uninsured Are in the Coverage Gap?

An estimated 1.4 million uninsured individuals in the 10 states without Medicaid expansion, including many working adults, people of color, and those with disabilities, remain in the "coverage gap," ineligible for Medicaid or for ACA tax credits that would make coverage affordable.

The Uninsured and Health Coverage

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.

Key Facts on Health Coverage of Immigrants

This fact sheet provides an overview of health coverage for immigrants based on data from the 2023 KFF/LA Times Survey of Immigrants. As of 2023, half of likely undocumented immigrant adults and one in five lawfully present immigrant adults reported being uninsured.

New and noteworthy

Affordability Is the Issue Now, But Look for the Uninsured to Make a Comeback

A new column on the uninsured from President and CEO Dr. Drew Altman explains: “The uninsured is not the most politically salient problem in health care now, that’s affordability, nor is it the non-problem some say it is. But it’s coming back. And the problem of the chronically ill uninsured is glaring.” Read more.

Key Facts about the Uninsured Population

The number and share of people without insurance grew in 2024, increasing for the first time since 2019, according to KFF’s analysis of data from the American Community Survey (ACS). This issue brief describes trends in health coverage in 2024, examines the characteristics of the uninsured population , and summarizes the access and financial implications of not having coverage.

More on the uninsured population >>

Who was uninsured in 2024?

Latest Polling
9.8%

The share of people under age 65 without insurance
62%

The share of uninsured adults who said they were uninsured because coverage is not affordable
59%

The share of uninsured adults who said they or someone living with them had problems paying for health care
39%

The share of uninsured adults who reported delaying or not getting needed care or medication due to cost
Other key facts about the uninsured >>

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  • Managed Care Plan Liability: An Analysis of Texas and Missouri Legislation

    Other Post

    The Impact of Managed Care Legislation: An Analysis of Five Legislative Proposals from California Health Policy Economics GroupPrice Waterhouse LLP November, 1997 Executive Summary Managed care has grown tremendously in recent years. From 1988 to 1997, at firms with 200 or more employees, the proportion of employees enrolled in HMOs nationwide increased from 18 percent to 33 percent. The presence of managed care varies by state across the country but is particularly strong in California…

  • Study on the Consequences of Uninsurance Featured in a New Journal Supplement

    Other Post

    A June 2003 supplement of Medical Care Research and Review presents a compelling case that health insurance does lead to improved health and better access to care. The supplement, with Thomas Rice as guest editor, includes four commentaries on the topic by John Ayanian, Stuart Butler, Karen Davis, and Richard Kronick. The supplement, published by Sage Publications and supported by the Kaiser Commission on Medicaid and the Uninsured (KCMU), features Jack Hadley s exhaustive review…

  • Participation in Welfare and Medicaid Enrollment

    Report

    This paper examines Medicaid enrollment and its relation to the rise and fall of enrollment in Aid to Families with Dependent Children (AFDC) or Temporary Assistance to Needy Families (TANF) programs. Issue Paper Issue Paper

  • Striving to Make Ends Meet:  Low-Income Families’ Finances and Health Coverage

    Other Post

    Striving to Make Ends Meet: Low-Income Families’ Finances and Health Coverage The Kaiser Commission on Medicaid and the Uninsured released new reports and held a policy briefing on the challenges and tradeoffs low-income families face when dealing with their budgets and the implications for health coverage. Challenges and Tradeoffs in Low-Income Family Budgets: Implications for Health CoverageFaces of Medicaid Webcast of April 20, 2004 Policy Briefing

  • Medicaid and State-Funded Coverage for Adults:  Estimates of Eligibility and Enrollment

    Report

    Medicaid and State-Funded Coverage for Adults: Estimates of Eligibility and Enrollment Lack of health insurance coverage for low-income adults remains a pressing policy challenge. In 2002, low-income adults who were uninsured accounted for nearly half of the uninsured population. This report provides an overview of nonelderly adult eligibility for and enrollment in Medicaid and state-funded coverage, nationally and in 13 study states. Executive Summary (.pdf) Full Report (.pdf) Appendix (.pdf)

  • Addressing the Health Care Impact of Hurricane Katrina

    Issue Brief

    This issue paper is an effort to begin an assessment of health care needs in the wake of Hurricane Katrina and to review some of the policy options available to the federal government to ensure access to health care for those affected by Katrina. The brief begins with a summary of the implications for the health of the population and its access to needed care. It then outlines the implications for affected states – those…

  • Key Facts: States Most Affected by Hurricane Katrina

    Fact Sheet

    Key Facts: States Most Affected by Hurricane Katrina A side-by-side comparison of key demographics and health coverage statistics of the states most affected by Hurricane Katrina. Fact Sheet (.pdf)