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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 >>

Data and analysis

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.

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 tax credits that would make ACA coverage affordable to them.

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.

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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  • Cost Concerns and Coverage Changes: A Follow-Up Survey of ACA Marketplace Enrollees

    Poll Finding

    This KFF survey is a follow-up survey of adults who had ACA Marketplace insurance in 2025. The survey examines the cost concerns and coverage changes that these 2025 Marketplace enrollees are experiencing following the expiration of the enhanced premium tax credits. The survey finds that half of returning enrollees say their health care costs are “a lot higher” and most expect to cut back on basic household expenses to afford coverage.

  • Prescription Drugs: Results from a National Survey

    Fact Sheet

    Prescription drugs have become an integral part of medical practice - they help keep people healthy and save lives. But rising prescription drug costs have placed a growing burden on consumers, employers, and public programs. The issue of drug coverage for seniors under Medicare has moved to center stage in the Presidential election. Findings from The NewsHour with Jim Lehrer/Kaiser Family Foundation/Harvard School of Public Health "National Survey on Prescription Drugs," a Public Opinion Update…

  • Underinsured in America: Is Health Coverage Adequate?

    Fact Sheet

    Underinsured in America: Is Health Coverage Adequate? This fact sheet examines the adequacy of health insurance coverage of the insured and focuses on the consequences and future policy challenges of what some experts have defined as "underinsurance." Fact Sheet

  • States with the Fastest Recent Growth in ACA Marketplace Coverage Started with High Uninsured Rates

    News Release

    The states with the fastest recent growth in ACA Marketplace signups also had among the highest uninsured rates previously, as enhanced subsidies helped to make coverage more affordable for many consumers, particularly in southern states that did not expand their Medicaid programs to cover low-income adults, a new KFF analysis finds. The enhanced premium subsidies were first provided in the American Rescue Plan Act in 2021 and then extended through 2025 in the Inflation Reduction Act.…

  • Millions of Uninsured People Can Get Free ACA Plans

    Policy Watch

    This post estimates that about 5 million uninsured people across the country could get coverage through an Affordable Care Act (ACA) Marketplace health plan with virtually no monthly premium if they enroll during the 2023 open enrollment period, which runs through Jan. 15 in most states.

  • How Many Uninsured Adults Could Be Reached If All States Expanded Medicaid?

    Issue Brief

    As more people lose their jobs and accompanying ESI, more may fall into the coverage gap, particularly starting in 2021 after unemployment benefits expire for many who have lost their jobs and incomes are likely to drop below the minimum threshold for marketplace subsidies. This analysis estimates how many uninsured adults—including those uninsured even before the pandemic and those who could become uninsured as a result of it— could become eligible for Medicaid if states…

  • How Will Health Reform Impact Young Adults?

    Issue Brief

    Adults ages 19 to 29 have the highest uninsured rate of any age group in the United States. The 13.7 million uninsured people in this age group comprise nearly a third of the overall uninsured population.  Most provisions in health reform do not specifically target young adults, but because of their high uninsured rate they will be one of the groups that is most affected by the new law. This paper explains the key ways in…

  • Retired Steelworkers and Their Health Benefits: Results from a 2004 Survey

    Report

    This Kaiser survey report looks at how the bankruptcies of two steel companies, the LTV Corporation and Bethlehem Steel, affected health coverage for the companies' retirees and dependents. The bankruptcies left about 200,000 retirees and spouses without retiree health coverage in 2002 and 2003. The report provides insight into the impact of a tax credit enacted by Congress in 2002 to provide temporary assistance to workers and retirees in "distressed" industries, including the steel industry.…

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

    Poll Finding

    Toplines -- The Public's Health Care Agenda for the New President and Congress This document contains the detailed toplines from The Public's Health Care Agenda for the New President and Congress poll. The poll involved a nationally representative random sample of 1,628 adults ages 18 and older who were interviewed by telephone between December 4 and 14, 2008. The margin of sampling error for the full sample is plus or minus 3 percentage points. For…

  • Health Insurance Coverage Of Low-Income Women

    Fact Sheet

    Low-income women's high rate of health problems and limited economic resources make access to health care and adequate health insurance coverage particularly important. Health coverage, whether through the private sector or publicly through Medicaid, has been demonstrated to improve access to care for low-income women. However, obtaining coverage is not easy or even possible for many women. Job-based insurance is not always an option for low-income women, despite their high workforce participation. Assistance is available…