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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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  • JAMA Forum: Why Health Insurance Literacy Matters

    Perspective

    Larry Levitt's November 2014 post looks at the challenges with people not understanding basic health insurance concepts as millions of them evaluate and choose health plans during open enrollment season for insurance in 2015.

  • Primers on Key Health Care Topics and Programs

    Issue Brief

    The Kaiser Family Foundation maintains a number of primers providing overviews of key health care programs and issues. Written by Foundation staff, each primer provides key data and information that helps illustrate the topic and its relevance for the nation's health care system. Medicaid: A Primer Medicare: A Primer The Uninsured: A Primer Health Care Costs: A Primer How Private Health Coverage Works: A Primer Mental Health Financing in the United States: A Primer The…

  • Health Care In New Orleans: Progress and Remaining Challenges

    Event Date:
    Event

    On Dec. 3, 2009, Diane Rowland, the Foundation Executive Vice President and Executive Director of the Kaiser Commission on Medicaid and the Uninsured, delivered this testimony on the post-Katrina recovery efforts to restore health care to the New Orleans area before the U.S.House Committee on Oversight and Government Reform. Testimony (.pdf)

  • Pulling It Together: The Falloff in Utilization: “There’s Something Happening, Here, What It Is Ain’t Exactly Clear”

    Perspective

    For as long as I have been in the field, we have seen cycles in health care costs. Per capita health spending would rise, then moderate, then rise gain. My colleague Larry Levitt and I documented this in The Sad History of Health Care Costs and my friend Dr. Jim Mongan called it “the peaks and valleys” of health care costs. We have never been sure whether the "valleys" were the result of government actions, such…

  • The Olmstead Decision: Implications for Medicaid

    Issue Brief

    In June, 1999, the Supreme Court rule in Olmstead v L.C. that states were required to provide services to persons with disabilities in community settings rather than institutions, if certain conditions were met. This Policy Brief provides an overview of the Olmstead case, including the facts, the court ruling, and the disposition of the case. In addition, the brief describes the issues surrounding implementation and the implications this ruling could have for state Medicaid programs.…

  • Access to Care for S-CHIP Children with Special Health Needs

    Issue Brief

    A study of California, Connecticut, Maryland, Missouri, and Utah CHIP programs show that the states have features in place for special needs children, but problems of provider availability and service authorization did sometimes occur. This is the first in a series of reports on implementation issues and challenges in the first year of CHIP. ISSUE BRIEF Download

  • Regulating the Quality of Abortion Services: Politics or Good Medicine?

    Report

    A growing trend by state legislatures to pass tough regulations on abortion services begs the questions: Do these rules help to ensure the health and safety of abortion patients and the quality of abortion services? Or, as some abortion rights groups have suggested, are they designed to put abortion providers out of business? National Committee for Quality Assurance Chief Executive Officer, Margaret O'Kane, National Abortion Federation Committee on Quality Improvement Chair, Dr. Bernard Smith, and…

  • NPR/KFF/HSPH Survey: Public Views on SCHIP Reauthorization: Topline

    Poll Finding

    These toplines present detailed survey results from an October 2007 survey conducted jointly by NPR, the Kaiser Family Foundation, and the Harvard School of Public Health on the public’s views and opinions of the State Children’s Health Insurance Program and the pending legislation surrounding its reauthorization. Toplines (.pdf)