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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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  • Medicaid Spending Growth and the Great Recession, 2007-2009

    Fact Sheet

    This fact sheet examines how the recent recession drove up Medicaid enrollment as millions of Americans lost jobs and income, and how that increase in enrollment has been the primary cause of the increase in overall Medicaid spending. Fact Sheet (.pdf)

  • Medicaid Coverage and Care for the Homeless Population: Key Lessons to Consider for the 2014 Medicaid Expansion

    Report

    Beginning in 2014, the Affordable Care Act ACA provides for a significant Medicaid expansion uninsured, low-income adults. Given their low incomes and high uninsured rate, individuals experiencing homelessness could significantly benefit from this expansion. However, it will be important to address the barriers they face to enrolling in coverage and accessing needed care. This report, based on eight focus group discussions with administrators and frontline workers serving the homeless population in four cities, identifies enrollment…

  • Resources on Immigrants and Health Care Coverage

    Report

    The Foundation's Kaiser Commission on Medicaid and the Uninsured has collected some resources on the health coverage of America's immigrants. Overview of Health Coverage for Individuals with Limited English Proficiency Key Facts on Health Coverage for Low-Income Immigrants Today and Under Health Reform Connecting Eligible Immigrant Families to Health Coverage and Care: Key Lessons from Outreach and Enrollment Workers New Option for States to Provide Federally Funded Medicaid and CHIP Coverage to Additional Immigrant Children…

  • Health Insurance Coverage of the Near Elderly

    Report

    This report examines the changes in income, health status, and insurance coverage that occur with the aging of the population, focusing primarily on the nearly 26 million near elderly--those between 55 and 64 years of age. Report (.pdf)

  • The President’s FY 2006 Budget Proposal:

    Report

    Overview and Briefing Charts This chartpack reviews the President’s FY 2006 budget request to Congress and highlights overall budget assumptions and funding for major health programs. It begins with a description of the federal budget process, followed by an overview of federal surplus/deficit spending patterns dating back to 1969. It then turns to summary information on the overall composition of the Administration’s budget, followed by the President’s proposed funding for some of the major programs…

  • Policy and Political Implications of the Supreme Court Case on the Affordable Care Act

    Event Date:
    Event

    This webcast features a Kaiser Family Foundation briefing held on March 14, 2012, examining the policy and political implications of the pending U.S. Supreme Court case on the Affordable Care Act (ACA). At the briefing, the Foundation released new polling data on the public’s views about the case as well as their more general views about the health reform law. Participants included: Kaiser President and CEO Drew Altman (moderator)Joe Onek, Principal, The Raben Group Sheila…

  • How States Are Responding to the Challenge of Financing Health Care for Retirees

    Report

    State governments are an important source of health insurance coverage for retired state employees. Confronted with rising health care costs, budget deficits, and an overall downturn in the economy, this report describes how states are responding to the challenge of financing health care for retirees who tend to be sicker and more costly to cover than active workers. This study, based on survey responses from 43 states and the District of Columbia, captures information on…

  • Health Savings Accounts and High Deductible Health Plans: Are They An Option for Low-Income Families?

    Issue Brief

    Health Savings Accounts (HSAs) are a type of medical savings account that allow consumers to save for medical expenses on a tax-fee basis. They are linked with high deductible health plans (HDHPs), and together these insurance and savings options represent a new approach to health care, commonly referred to as consumer-directed care. This brief, based on analyses of available data and research, finds that most low-income families would not benefit from HSA-HDHPs due to an…

  • Toplines: The Public’s Health Care Agenda

    Poll Finding

    These toplines provide the complete survey questions and findings from The Public’s Health Care Agenda for the New Congress and Presidential Campaign, conducted jointly by the Kaiser Family Foundation and the Harvard School of Public Health between November 9 and 19, 2006. The 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…