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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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  • Assessing Congressional Budget Office Estimates of the Cost and Coverage Implications of Health Reform Proposals

    Issue Brief

    This issue brief explains key elements of the Congressional Budget Office's estimates of the major health reform bills pending in Congress, the Affordable Health Care for America Act (H.R. 3962) and the Patient Protection and Affordable Care Act (H.R. 3590). Throughout the health reform debate, CBO has analyzed these and other bills and provided projections of the costs and savings to the federal government associated with the plans over a 10-year period, as well as…

  • Kaiser Health Tracking Poll — February 2009

    Poll Finding

    The first Kaiser Health Tracking Poll of 2009 finds the public is increasingly worried about the affordability and availability of care, with many postponing or skipping treatments due to cost in the past year and a notable minority forced into serious financial straits due to medical bills. Slightly more than half (53%) of Americans say their household cut back on health care due to cost concerns in the past 12 months. The most common actions…

  • Family Circle/Kaiser Family Foundation National Survey on Health Care & Other Elder Care Issues

    Poll Finding

    As part of a joint project with Family Circle, this national survey examines the knowledge and experiences of 806 adults with a parent 65 and older in an effort to understand their role in helping their aging parents. The survey found that half check in on their parent with regular phone calls or visits, over four in ten visit or see their parent at least once a week, and more than a quarter help their…

  • The New American Electorate and Health Reform

    Poll Finding

    An analysis of the electorate and health reform that considers how American voters' values influenced their support or opposition toward health reform proposals and how those attitudes shifted over the course of the debate.

  • Managed Care and Low-Income Populations: A Case Study of Managed Care in Tennessee

    Report

    TennCare represents one of the most ambitious state-level efforts to restructure Medicaid and expand insurance coverage to the uninsured. The case study shows that the rapid change caused considerable confusion for patients, providers, and health plans. The TennCare experience provides early insights into the issues that states will face as they move to enroll more of their low-income populations into managed care arrangements.

  • The Cost of Cancer

    Video

    This Kaiser Family Foundation documentary explores the financial consequences faced by three people, all privately insured, after being diagnosed with cancer. It was released in conjunction with a joint Kaiser/American Cancer Society report, "Spending To Survive: Cancer Patients Confront Holes in the Health Insurance System." The Cost of Cancer: Tom Olszewski Tom Olszewski, a retiree who lives in Texas, had prostate cancer but has been in remission for a decade. His medical history made it…

  • Increasing Medicaid Payments for Certain Primary Care Physicians in 2013 and 2014: A Primer on the Health Reform Provision and Final Rule

    Issue Brief

    To help ensure that access in Medicaid expands to meet anticipated higher demand for care, the health reform law requires states to pay certain physicians Medicaid fees that are at least equal to Medicare’s for a list of 146 primary care services in 2013 and 2014. The idea is to attract new physicians to Medicaid and provide greater support for physicians who already participate. As a result, Medicaid fees paid to certain physicians for primary…

  • Kaiser Health Tracking Poll — April 2012

    Feature

    The April poll gauged Americans' opinions of the Affordable Care Act (ACA) in the wake of the Supreme Court oral arguments in the legal challenges to the health reform law in March. The increased public attention to the Affordable Care Act generated by the Supreme Court's consideration of the law did not meaningfully change the public's opinion of the law overall or of the specific provision at the heart of critics' legal case against it,…

  • West vs. South: Regional Differences in Views of the Health Reform Law

    Poll Finding

    This Data Note examines regional variations in public opinion of the health reform law based on the November 2010 Kaiser Health Tracking Poll. The analysis takes a special look at the Western and Southern regions of the country, where many states are likely to see the biggest increases in coverage under the law, and which stand to be disproportionately eligible for federal Medicaid funds. Despite these similarities in how the two regions might be affected,…