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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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  • New Report Provides State-Level Data on Coverage Gains and Costs of the Medicaid Expansion in Health Reform

    News Release

    Analysis Projects Steep Decreases in Uninsured, With Federal Government Covering Vast Majority of CostsWASHINGTON -- The expansion of Medicaid under the new health reform law will significantly increase the number of people covered by the program and markedly reduce the uninsured in states across the country, with the federal government picking up the overwhelming majority of the cost, according to a state-by-state analysis released today by the Kaiser Family Foundation’s Commission on Medicaid and the Uninsured (KCMU).…

  • Explaining the 2015 Open Enrollment Period

    Issue Brief

    The brief provides an overview of what consumers can expect during the second annual Open Enrollment period under the Affordable Care Act (ACA), which runs from November 15, 2014 through February 15, 2015. It is the second opportunity for uninsured individuals to enroll in private insurance coverage, premium tax credits and cost sharing subsidies and the first time that people newly insured in 2014 can renew their health plan coverage and subsidies. It also overlaps…

  • Challenges to Forecasting Obamacare Enrollment for 2015

    News Release

    In his latest column for The Wall Street Journal’s Think Tank, Drew Altman explains why 2015 enrollment in the Affordable Care Act’s marketplaces is very hard to predict. All previous columns by Drew Altman are available online.

  • Snapshots: Trends in Employer-Sponsored Health Insurance Offer Rates for Workers in Private Businesses

    Issue Brief

    Most Americans receive their health insurance through their own job or the job of a family member; an offer of coverage at work is an important determinant of the likelihood of having private health insurance. This analysis examines the percentage of nonelderly, full-time adult workers (age 18 through 64) in private firms who were offered health insurance at their current primary job and how that changed over the period from 1995 to 2005. The condition…

  • A Profile of Health Insurance Exchange Enrollees

    Report

    The Patient Protection and Affordable Care Act calls for the creation of Health Insurance Exchanges in all states by January 1, 2014. The exchanges are a critical element of the health reform law, aimed at helping individuals and families shop for and purchase health insurance on their own with additional assistance for lower-income individuals and families. The Congressional Budget Office has estimated that approximately 24 million people will purchase coverage through the state health exchanges…

  • California Health Care Chartbook: Key Data and Trends

    Report

    This chartbook provides California and U.S. data and trend analysis on a broad range of health system and financing indicators, including demographics and health status data, insurance coverage and the uninsured, employer health insurance premiums and offer rates, Medicaid and Medicare enrollment and spending, and health care industry trends. Chartbook (.pdf)

  • Analysis of the Number of Workers Covered by Self-Insured Health Plans Under the Employee Retirement Income Security Act of 1974 and 1995.

    Report

    This report presents findings based upon the KPMG health benefits survey of private and public employers and explores the extent of ERISA preemption on health plans covering U.S. workers. Included is estimated data on the total number of workers covered by fully and partly self-insured health plans in 1993 and 1995, a summary of the ERISA provisions and case law dealing with health plans and an analysis of potential changes to ERISA. Note: This publication…

  • Health Affairs Article: Health Care in New Orleans Before and After Hurricane Katrina

    Issue Brief

    On the first anniversary of Hurricane Katrina’s landfall, a paper authored by Foundation staff, released as a web exclusive by the journal Health Affairs, examines the impact of the storm on New Orleans, the current state of health care in the city, and lessons learned about the city’s health care delivery system. Health Affairs article: Full Article Abstract

  • The New Health Reform Law and Young Adults

    Event Date:
    Event

    Young adults have some of the highest uninsurance rates in America. In 2008, three in 10 uninsured Americans – almost 14 million people – were between 19 and 29 years of age. The new health reform law requires insurers to allow dependent children to remain on their parents’ plans until age 26. But many questions remain, such as who qualifies as a dependent? What does the Massachusetts reform experience teach us about insuring young adults?…

  • Uninsured Quiz

    Feature

    The number of uninsured people in the United States has received increased attention since the enactment of the Affordable Care Act in 2010. How much do you know about the uninsured population and the consequences of not having coverage? Take our quiz.