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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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  • Pulling it Together: Separating the Forest from the Trees in the Health Reform Debate

    Perspective

    The good news for those who care about health care is that the issue is rising again on the national agenda. If we have a big debate about health in the presidential campaign and if it is a factor at the polls in 2008, it will help create a mandate for the new president and Congress to make health care a priority in 2009. But the real health care debate has been delayed by the…

  • Five Basic Facts on Immigrants and Their Health Care

    Issue Brief

    As discussions on national health care reform move to the forefront, some have focused on the role of immigrants in the health care system, including their impact on the nation’s uninsured problem, their participation in public health coverage programs, and their use of hospital emergency rooms. To address questions about how immigrants use and affect the health care system, this brief draws on available research and data to highlight five key facts about immigrants’ health…

  • How Will Uninsured Childless Adults Be Affected By Health Reform?

    Issue Brief

    This brief examines uninsured childless adults and how they could be affected by health reform, including estimates of how many might qualify for coverage under a Medicaid expansion, how many would be eligible for subsidies and how many would not be eligible for such help. Issue Brief (.pdf)

  • Community Health Centers in an Era of Health Reform: An Overview and Key Challenges to Health Center Growth

    Issue Brief

    Over 1,100 federally funded community health centers play a vital role in ensuring access to health care for a predominantly low-income population in medically underserved communities. Health centers’ ability to provide comprehensive primary care and improve access to high-quality care while holding down health care cost growth has been well-documented. As health reform spurs coverage expansion and efforts to improve quality, the nation’s reliance on health centers is likely to grow. In the Affordable Care…

  • Health Insurance Coverage in America:  2003 Data Update

    Report

    Health Insurance Coverage in America: 2003 Data Update This chartbook provides 2003 data on health insurance coverage, with special attention to the uninsured. It includes trends and major shifts in coverage and a profile of the uninsured population. Chartbook (.pdf)

  • Report and Video Highlight Health Coverage Struggles, Other Economic Concerns of Working Families

    Event Date:
    Event

    This report and video from the Kaiser Family Foundation's Commission on Medicaid and the Uninsured (KCMU) illustrate the financial struggles of many families in the United States and show the central role of health care costs and coverage in a household's economic stability. The report, Snapshots from the Kitchen Table: Family Budgets and Health Care, is based on interviews with 27 families from six cities across the U.S.. It finds pervasive uncertainty over job security…

  • How Will Uninsured Children Be Affected By Health Reform?

    Issue Brief

    This brief examines uninsured children and how they could be affected by health reform, including estimates of how many might qualify for coverage under a Medicaid expansion, how many would be eligible for subsidies and how many would not be eligible for such help. Issue Brief (.pdf)

  • Pulling It Together: Predicting the Future

    Perspective

    A fair amount of attention was given recently to projections made by the Chief Actuary of the Centers for Medicare and Medicaid Services (CMS) about the new health reform law, and how they compare to previous estimates by the Congressional Budget Office (CBO). No doubt the various projections will be grist for claims made in the upcoming political season, so it is important to be clear about the differences between the two estimates and to…

  • Coping with Fragmented Payment in the Real World

    Event Date:
    Event

    The Alliance for Health Reform and The Commonwealth Fund sponsored this briefing which focused on three communities that have reformed and harmonized health care payments across payers to improve care: a New York health center that serves a low income population; a Colorado community that pools money from public and private sources to provide care for all patients; and the State of Maryland, which has been using an all payer hospital rate setting system for…

  • Oral Health and Medicare Beneficiaries: Coverage, Out-of-Pocket Spending, and Unmet Need

    Issue Brief

    This brief describes the oral health of Medicare beneficiaries, examines sources of dental coverage for the Medicare population, and examines the utilization of dental services, out-of-pocket spending on dental care, and access problems. This analysis uses data from the National Health and Nutrition Examination Survey (NHANES), the Medicare Current Beneficiary Survey Cost and Use file (MCBS), the National Health Interview Survey (NHIS) and the Kaiser Family Foundation Survey of Health Care Among Nonelderly People with…