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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.

Health Coverage Among Community Health Center Patients, 2019-2024

Community Health Center Patients, Financing, and Services

Changes to Medicaid and the ACA Marketplace included in the 2025 reconciliation law and the expiration of ACA Marketplace enhanced premium tax credits at the end of 2025 are likely to increase the number of uninsured patients and patients who cannot afford out-of-pocket costs, placing new financial burdens on community health centers.

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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  • Managed Care For Low-Income Populations with Special Needs: The Tennessee Experience

    Report

    This paper provides a targeted review of Tennessee's experience providing health care to individuals with special needs under TennCare, its Medicaid managed care initiative. The first part reviews the experience of TennCare Partners, the behavioral health carve-out program created in 1996. The second part reviews how TennCare's structure affects the disabled and chronically ill.

  • Summary Of Early Observations Of The Transition Of Immigrant Families From A Medicaid Look-Alike Program To Basic Health In Washington State

    Issue Brief

    In 2002, the state of Washington eliminated state-funded Medicaid look-alike coverage for certain immigrant families. These families then became eligible for more limited coverage in the state's Basic Health program. This report details the process of this transition and the outcomes for coverage and access for these individuals. Research Brief (.

  • Connecting the Justice-Involved Population to Medicaid Coverage and Care: Findings from Three States

    Issue Brief

    This brief provides an overview of initiatives to connect the justice-involved population to Medicaid coverage and care in the community in three states—Arizona, Connecticut, and Massachusetts—based on interviews with key stakeholders. These states are leading efforts in these areas and provide key lessons about how to coordinate across health care and corrections and the potential of such initiatives to better link individuals to the physical and behavioral services they need. Each of the case study states is connecting individuals to coverage at multiple points within the justice system. The study states also connect individuals to care in the community as they are released from jail or prison. Stakeholders and data indicate that these approaches have increased coverage, facilitated access to care, and contributed to administrative efficiencies and state savings. However, more data and time are needed to examine the effects on health and criminal justice outcomes, including recidivism rates.

  • The Louisiana Health Care Landscape

    Fact Sheet

    This fact sheet provides an overview of resident socio-demographic characteristics, population health, health coverage, and the health care delivery system in Louisiana both pre-Hurricane Katrina and in the era of health reform.

  • A Final Look: California’s Previously Uninsured after the ACA’s Third Open Enrollment Period

    Report

    The Kaiser Family Foundation California Longitudinal Panel Survey is a series of surveys that, over time, tracked the experiences and views of a representative, randomly selected sample of Californians who were uninsured prior to the major coverage expansions under the Affordable Care Act (ACA). The initial baseline survey was conducted with a representative sample of 2,001 nonelderly uninsured Californian adults in summer 2013, prior to the ACA’s initial open enrollment period. After each enrollment period concluded, a survey was conducted of the same group of previously uninsured Californians who participated in the baseline (a longitudinal panel survey). The fourth and final survey in the series, and the focus of this report, followed up with them after the third open enrollment period in spring 2016 to find out whether more have gained coverage, lost coverage, or remained uninsured, what barriers to coverage remain, how those who now have insurance view their coverage, and to assess the impacts that gaining health insurance may have had on financial security and access to care.

  • 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.