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

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  • Kaiser Health Tracking Poll: March 2015

    Feature

    As the Affordable Care Act (ACA) marks its fifth anniversary, this month’s poll finds the gap between favorable and unfavorable opinions of the law has narrowed to the closest margin in over two years. Although the Supreme Court heard oral arguments for the King v. Burwell case in early March, the majority of the public continues to say they have heard only a little or nothing at all about the case. The survey also includes…

  • Oral Histories: Report from a Dental Fair

    Video

    This video profiles patients attending a dental fair in rural Virginia and highlights the impact of lack of coverage for oral health services. Uninsured adults have vast oral care needs, and untreated dental problems can have serious health, employment and social consequences.

  • Health Insurance Coverage in America:  2002 Data Update

    Report

    Health Insurance Coverage in America: 2002 Data Update This chartbook provides 2002 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) Previous year's data updates

  • The U.S. Economy and Changes in Health Insurance Coverage, 2000-2006

    Other Post

    Health Affairs Article: The U.S. Economy and Changes in Health Insurance Coverage, 2000-2006 A Foundation study featured as a web-exclusive Health Affairs article examines health coverage trends from 2000-2006 showing that over this period the dominant factor contributing to a rise in the uninsured population has been the decline in employer-sponsored insurance, even as the economy rebounded from the last recession. Access web-exclusive Health Affairs article

  • Filling an Urgent Need: Improving Children’s Access to Dental Care in Medicaid and SCHIP

    Report

    In October 2007, the Foundation’s Kaiser Commission on Medicaid and the Uninsured and the National Academy for State Health Policy convened a day-long meeting of policy officials and oral health experts to discuss children’s access to dental care in Medicaid and the State Children’s Health Insurance Program (SCHIP) and exchange information and perspectives on the strategies have worked best to improve it. This report summarizes the 15 experts recommendations on a wide assortment of effective…

  • First Wave of Major New Survey Project on California’s Uninsured

    News Release

    California’s Uninsured Struggle With Costs and Access And Say They Want Insurance, But Most Have Heard Little About The Affordable Care Act, And Many Who Are Likely To Be Eligible For Medi-Cal or Exchange Subsidies Don’t Know It Many Undocumented Immigrants in CA Think They Will Get Coverage Through the ACA But Won’t Menlo Park, Calif. – California’s uninsured are skipping medical care, struggling with costs and want coverage, but many report knowing little about…

  • NPR/Kaiser/Harvard Survey: The Public on Requiring Individuals to Have Health Insurance – Toplines

    Poll Finding

    These toplines present detailed survey results from a February 2008 survey conducted jointly by NPR and public opinion researchers at the Kaiser Family Foundation and the Harvard School of Public Health that examines how the public views different approaches for expanding health coverage, including provisions that would require individuals to purchase insurance or parents to obtain coverage for their children. A nationally representative sample of 1,704 adults participated in telephone interviews from Feb. 14-24, 2008.…

  • Risk Selection Issues Under Medicare Reform Proposals

    Report

    This report compares the provisions designed to guard against risk selection among the Medicare population in both the Congressional Balanced Budget Act of 1995 and in the President's budget plan released in December 1995. The report also explores provisions in both that may exacerbate the potential for risk selection. Report: