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2025 KFF Marketplace Enrollees Survey

If the amount they pay in premiums doubled, about one in four enrollees in ACA Marketplace health plans say they would “very likely” go without insurance in 2026, finds a KFF survey of Marketplace enrollees fielded shortly after open enrollment began in the first weeks of November 2025. One in three say they would be “very likely” to look for a lower-premium Marketplace plan.

Data and analysis

The Uninsured Population 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?

This analysis estimates that 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 coverage ACA's Marketplaces affordable to them.

Key Facts about the Uninsured Population

The number of people ages 0-64 who were uninsured held steady at 25.3 million in 2023, although the number of uninsured children rose from 3.8 million to 4.0 million. Most uninsured people are in low-income families and have at least one worker in the family.

How the Unwinding Affected Enrollees

Over half who were disenrolled say they put off needed medical care while trying to renew Medicaid. Overall, 19% of adults who had Medicaid prior to the start of unwinding say they were disenrolled at some point in the past year. Of this group, a large majority (70%) were left at least temporarily uninsured.

The uninsured: How costs affect care and health, 2023

Latest Polling
8%

Percent of adults who reported not having health insurance
55%

Percent of uninsured adults who reported delaying or forgoing some form of health care due to cost
19%

Percent of uninsured adults who report that they or a family member had difficulty paying medical bills
38%

Percent of uninsured adults who reported not having a usual source of care (vs. 8% of insured adults)
Peterson-KFF Health System Tracker

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  • 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 that have not yet expanded the program do so.

  • What Options Exist If You’ve Lost Job-based Health Insurance? (Video)

    Video

    As unemployment skyrockets due to the COVID-19 pandemic, tens of millions of people are at risk of losing their job-based health insurance. However, the majority of people are eligible for other forms of health insurance coverage. Watch this two minute video to learn about the options: Medicaid, job-based coverage from a spouse or parent, ACA marketplace coverage, COBRA and short-term insurance plans.

  • Insurance Coverage Changes for People with HIV Under the ACA

    Issue Brief

    This brief provides the first national estimates of changes in insurance coverage among people with HIV since the implementation of the ACA. We find that coverage increased significantly for people with HIV due to the ACA’s Medicaid expansion; indeed, increased Medicaid coverage in expansion states drove a nationwide increase in coverage for people with HIV.

  • Current Flexibility in Medicaid: An Overview of Federal Standards and State Options

    Issue Brief

    The Trump Administration and new Congress have indicated that they will seek to cap Medicaid financing through a block grant or per capita cap, reduce federal funding for the program, and offer states increased flexibility to manage their programs within this more limited financing structure. The size of the federal reductions as well as which federal program standards would remain in place and what increased flexibility might be provided to states under such proposals would have significant implications. To help inform discussion around increased flexibility, this brief provides an overview of current federal standards and state options in Medicaid and how states have responded to these options in four key areas: eligibility, benefits, premiums and cost sharing, and provider payments and delivery systems.

  • High-Risk Pools as Fallback for High-Cost Patients Require New Rules

    From Drew Altman

    In this Wall Street Journal Think Tank column, Drew Altman examines how Republicans would “split the risk pools” between the healthier and the sick in their Affordable Care Act replacement plans, using state high risk pools as a fallback for higher cost patients, and examines the steps that would be necessary to make them effective based on prior experience in the states.

  • ANALYSIS: More than Half of Uninsured People Eligible for Marketplace Insurance Could Pay Less for Health Plan than Individual Mandate Penalty

    News Release

    A new Kaiser Family Foundation analysis finds that more than half (54% or 5.9 million) of the 10.7 million people who are uninsured and eligible to purchase an Affordable Care Act marketplace plan in 2018 could pay less in premiums for health insurance than they would owe as an individual mandate tax penalty for lacking coverage.

  • Kaiser Health Tracking Poll – October 2017: Experiences of the Non-Group Marketplace Enrollees

    Feature

    The start of the open enrollment period for non-group insurance in 2018 is less than one month away, and the majority of individuals who are targets for enrollment – those who currently purchase their own insurance and those who are uninsured – are unaware of the key dates of the next open enrollment period. This report, focusing on enrollees in the non-group market, compares the experiences of individuals who purchase their own insurance through an ACA marketplace with the current health insurance market to those who get their insurance through their employer. Overall, the experiences of marketplace enrollees are more similar than different than those with employer coverage when it comes to costs and choices. However, marketplace enrollees are more likely to express worry about their future ability to afford insurance and health care services.