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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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  • Medicare Beneficiaries: A Population At Risk – Findings from the Kaiser/Commonwealth 1997 Survey of Medicare Beneficiaries

    Other Post

    Medicare Beneficiaries: A Population at RiskFindings from the Kaiser/Commonwealth Fund 1997 Survey of Medicare Beneficiaries Tables for Medicare Beneficiaries: A Population at RiskPart 1 Cathy Schoen, Patricia Neuman, Michelle Kitchman, Karen Davis, and Diane Rowland List of Tables Table 1 Medicare Beneficiary Demographics, by Poverty Status Table 2 Medicare Beneficiary Demographics, by Age Group Table 3 Medicare Beneficiary Demographics, by Supplemental Insurance Type Table 4 Medicare Beneficiary Demographics, by Gender Table 1Medicare Beneficiary Demographics, by…

  • Pulling it Together: What Will Health Reform Do For Me?

    Perspective

    There is one poll number that may be more important to watch than any other if we have a big debate about health reform: The percentage of Americans who think that they or their families would be better off if the president and the Congress enacted major health reform legislation. It's a number that signals whether people think that health reform legislation will actually help them with the problems they are having in the current…

  • Determining Income for Adults Applying for Medicaid and Exchange Coverage Subsidies: How Income Measured With a Prior Tax Return Compares to Current Income at Enrollment

    Issue Brief

    A major goal of the Patient Protection and Affordable Care Act (ACA) is to significantly expand coverage and reduce the number of uninsured. Beginning in 2014, the ACA will establish a new continuum of coverage that will provide assistance to individuals with incomes up to 400% of poverty through a broad expansion in Medicaid and by making premium tax credits available to eligible individuals to purchase coverage through new Health Insurance Exchanges. The law standardizes…

  • Profile of the Low-Income Uninsured

    Issue Brief

    This policy brief provides an overview of the low-income, uninsured population. Based on an analysis of the March 1998 Current Population Survey, the report discusses the demographic characteristics of this vulnerable population. It also presents information detailing health insurance coverage for low-income children and adults, as well as trends in insurance coverage over the past decade. It concludes with a discussion of recent coverage expansions and policy changes that have affected low-income Americans. The policy…

  • National Election Night Survey of Voters, 1994

    Poll Finding

    Among Issues, Voters See Health Reform As Top Priority for New Congress But Reject Major Overhaul of System For More Modest Approach Embargoed for release: 12:00 p.m. EST Tuesday, November 15, 1994 For further information contact: Matt James or Tina Hoff National Election Night Survey Also Finds: Voters Support Spending Cuts to Reduce Deficit in Theory, But Not in Practice When Specific Budget Areas Are Proposed Menlo Park, CA -- A Kaiser/Harvard election night survey…

  • Key Facts: Women and Medicare

    Report

    Medicare is a critical source of health insurance coverage for virtually all older women in the U.S. and for many younger women who have permanent disabilities. Today, 22 million women one in five adult women rely on Medicare for basic health insurance protection. In fact, women comprise 57% of the Medicare population. Medicare helps to make health care more affordable for older women at a time in their lives when they are most likely to…

  • The Public’s Health Care Agenda for the New Congress and Presidential Campaign, December 2006

    Poll Finding

    This Kaiser Family Foundation/Harvard School of Public Health National Survey looks at the public's priorities and views on health issues as a new Democratic majority takes the leadership of Congress and as the 2008 presidential campaign begins to take shape. It focuses, in particular, on differences and similarities among Democrats, Republicans, and those who identify themselves as Independents or something else. The poll, conducted November 9-19, 2006, by the Kaiser Family Foundation and the Harvard…

  • Medicaid in a Declining Economy:  Limited Approaches for States to Control Spending

    Issue Brief

    Medicaid in a Declining Economy: Limited Approaches for States to Control Spending This brief analyzes results from its annual 50-state budget surveys of Medicaid directors from 2003 to 2007. The historical results describe how states adopted a wide array of Medicaid cost containment strategies during the last economic downturn and were assisted by the federal government to avoid deeper Medicaid cuts. Issue Brief (.pdf) See related material on this issue

  • Summary of Coverage Provisions in the Patient Protection and Affordable Care Act

    Issue Brief

    This short summary describes the health coverage provisions contained in the final version of the Affordable Care Act signed into law in March 2010, including the individual mandate requirements, expansion of public programs, health insurance exchanges, changes to private insurance and employer requirements.