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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 State Profiles: State and Regional Data on Medicare and the Population it Serves

    Report

    Although Medicare is a national program, there are substantial variations across states and regions in terms of beneficiary characteristics, health needs, and utilization of Medicare-covered services. Likewise, there are also considerable differences in Medicare spending and the emergence of Medicare managed care. In a single resource document, , presents state-by-state demographic data on the Medicare population, along with information on health service utilization, spending, and Medicare HMO penetration. It also provides regional data on the…

  • In Their Own Words: Family Profiles

    Other Post

    In Their Own Words: Family Profiles As the U.S. Congress and state legislatures explore policies to cover the uninsured, the Commission has profiled four families with uninsured members, including their family budgets, to better understand how specific policy ideas will practically affect typical uninsured Americans. Family Profiles Read the full report, "In Their Own Words: The Uninsured Talk About Living Without Health Insurance"

  • First Glance at the Children’s Health Initiative in Santa Clara County, California

    Report

    A new background report examines Santa Clara County in California in its effort to provide health insurance coverage (Children's Health Initiative or CHI) to all children living in the county. As one of the first localities to attempt such an initiative, its experiences can highlight important lessons and potential best practices for policymakers at the county, state, and national level considering coverage expansions for children. Also see Lessons from the Field: Increasing Enrollment in Children's…

  • Protection in Managed Care Plans: A Side-by-Side Comparison of Proposal Federal Legislation – Report

    Report

    Side-By-Side Comparison Of Proposed Federal Legislation For Consumer Protection In Managed Care Plans Nicole Tapay, Karen Pollitz, Jalena Curtis Institute for Health Care Research and Policy Georgetown University Medical Center July 18, 1997 Issue Summary Over the past decade, an increasing number of Americans have been receiving their health care coverage through HMOs, PPOs and other types of managed care entities. The growing influence of managed care, in turn, has led consumers and state and…

  • Health Issues in the 2000 Presidential Election

    Other Post

    A Comparison of Proposals This report presents basic, nonpartisan information to help readers compare the leading presidential candidates' proposals on health care issues, including health coverage for the uninsured, managed care and patients' rights, Medicare reform, prescription drug coverage for seniors, and long-term care. Part of a joint effort of the League of Women Voters and the Kaiser Family Foundation to educate and engage the public on key health policy issues, this side-by-side comparison is…

  • Medicaid Enrollment in 21 States: June 1997 – June 1999

    Report

    This report, Medicaid Enrollment in 21 States: June 1997 -June 1999, prepared by Health Management Associates, includes enrollment data obtained directly from state Medicaid and CHIP programs. Findings show that across the 21 states, which represent 73% of total Medicaid enrollment, enrollment fell from 23.2 million in June 1997 to 22.6 million in June 1998, but turned upward in June 1999 to 22.9 million. State-by-state data is included for: Arkansas, California, Florida, Georgia, Ilinois, Indiana,…

  • New Numbers on Enrollment of Uninsured Children

    Report

    This report reveals that the total number of children enrolled in state CHIP programs had grown to 1.8 million by December 1999, a 112% increase from December 1998. Although enrollment doubled in 20 states during that year, growth did begin to moderate in several states that had implemented their programs relatively earlier on. The report also demonstrates that enrollment of new children continued at roughly the same pace during the second half of 1999 as…

  • Making It Simple: Medicaid for Children and CHIP Income Eligibility Guidelines and Enrollment Procedures

    Report

    This is a study of the enrollment process in children's Medicaid and the Children's Health Insurance Program (CHIP) in the 50 states and Washington, DC. Prepared by the Center on Budget and Policy Priorities, the study is comprised of a nationwide telephone survey of state officials, a review of state CHIP plans, and interviews with state child health advocates. The focus of the study is on income eligibility guidelines, simplification of applications, enrollment and redetermination…

  • Public Opinion Update-3006-Public-Opinion-Update

    Other Post

    Public Opinion Update Public Opinion Update Public Opinion Update THE UNINSURED The debate over how to expand health insurance coverage to the over 44 million Americans without it continues to be one of the most challenging issues facing policymakers today. This Public Opinion Update summarizes key findings from several surveys conducted by the Kaiser Family Foundation and the Harvard School of Public Health and a new survey conducted by the Foundation in conjunction with the…