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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  • The Cost of Not Expanding Medicaid

    Report

    As states wrap up legislative sessions and make decisions about whether to implement the Medicaid expansion included in the Affordable Care Act (ACA), this new analysis highlights the implications of these decisions for coverage, state budgets and providers. The decisions by as many as 27 states not to adopt the Medicaid expansion will leave a many more uninsured; these states would also forgo billions in federal funds.

  • Two New Analyses: House COVID-19 Relief Plan Would Temporarily Lower Marketplace Premiums for Millions and More than Offset Short-Term State Costs to Expand Their Medicaid Programs

    News Release

    The House COVID-19 relief proposal would temporarily lower what millions of Marketplace enrollees and uninsured potential enrollees would pay toward premiums and would provide states that have not expanded their Medicaid programs a financial boost that would more than offset their costs initially, two new KFF analyses find. The analyses assess two parts of the House plan aimed at expanding access to affordable health coverage by expanding the Affordable Care Act’s tax credits for people…

  • KFF Survey of Medicaid Unwinding

    Poll Finding

    KFF's survey examines adults who had Medicaid coverage in early 2023, just before states resumed eligibility checks and disenrollments after pandemic-era protections ended. Nearly a quarter (23%) of adults who say they were disenrolled from Medicaid since early 2023 report being uninsured now. Overall, 19% of adults who had Medicaid prior to the start of unwinding say they were disenrolled at some point in the past year.

  • How Many People Might Lose Medicaid When States Unwind Continuous Enrollment?

    Issue Brief

    Between 8 and 24 million people across the U.S. could be disenrolled from Medicaid during the unwinding of the program’s continuous enrollment provision. KFF's new analysis offers three illustrative scenarios for how state-level Medicaid enrollment could decline between March 2023 and May 2024, ranging from 8 percent to 28 percent of total enrollees. 

  • A promotional image for the the KFF Health Policy 101 Medicare chapter

    The Uninsured Population and Health Coverage

    Feature

    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. Economic conditions, federal and state policy decisions, and major health crises like the COVID-19 pandemic influence the uninsured rate. While implementation of the Affordable Care Act, namely the expansion of Medicaid and availability of subsidized Marketplace coverage, led to a drop in the share of…

  • Chartpack — The Public’s Health Care Agenda for the New President and Congress

    Poll Finding

    Chartpack -- The Public's Health Care Agenda for the New President and Congress This chartpack provides the key findings from the survey of the public's attitudes regarding the health care agenda for President Obama and the new Congress in 2009. It assesses the relative priority placed on health care by the American public as part of addressing the economic recession and as a large scale reform issue. The public's priorities for health care reform and…

  • Medicaid’s Role for Hispanic Americans

    Fact Sheet

    This fact sheet examines Medicaid's role for Hispanic Americans. It includes data on Medicaid's coverage of Hispanic Americans and the program's impact on their access to care, as well as the impacts of the recent recession and the coming expansion of Medicaid under health reform on enrollment in Medicaid among Hispanic Americans. The fact sheet also has a chart showing state-by-state data on health insurance coverage of Hispanic Americans. Fact Sheet (.pdf)