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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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  • Chartpack: Kaiser Health Tracking Poll — July 2009

    Poll Finding

    This document contains the chartpack from the July Health Tracking Poll. The survey was designed and analyzed by public opinion researchers at the Kaiser Family Foundation and was conducted July 7 through July 14, 2009, among a nationally representative random sample of 1,205 adults ages 18 and older.

  • Five Key Questions And Answers About Section 1115 Medicaid Waivers

    Issue Brief

    This issue brief provides an overview of what Section 1115 Medicaid waivers are, how they are approved and financed, how states have used them, and how they are impacted by health reform. For many years, Section 1115 waivers have been used by states to test new coverage approaches not otherwise allowed under Medicaid program rules.

  • Medicaid Expansion Waivers: What Will We Learn?

    Issue Brief

    Section 1115 waivers authorize research and demonstration projects that, in the view of the Health and Human Services (HHS) Secretary, further the purposes of the Medicaid program. The ACA implemented new requirements for these waivers, including that states must have a publicly available, approved evaluation strategy. This brief examines some of the major research questions and hypotheses relevant to the federal and state evaluations of Medicaid expansion Section 1115 waivers and explores key challenges that may hamper research and evaluation efforts.

  • Michigan’s Medicaid Section 1115 Waiver to Address Effects of Lead Exposure in Flint

    Fact Sheet

    On February 13, 2016, Governor Rick Snyder submitted a Medicaid Section 1115 Waiver proposal to the Centers for Medicare and Medicaid Services (CMS) to address issues related to lead exposure in Flint, Michigan. This fact sheet provides some insight into the situation in Flint, Michigan, the history of Medicaid disaster relief waivers and the details of the Medicaid waiver request.

  • Key Data on Health and Health Coverage in South Carolina

    Fact Sheet

    This fact sheet draws on data from “Health and Health Coverage in the South: A Data Update” to highlight findings for South Carolina. The findings show the current status of health and health coverage in the state and the potential coverage gains that may be achieved through the Affordable Care Act.

  • Women’s Health Quiz: Health Coverage and the Affordable Care Act

    Feature

    Health insurance coverage is a critical factor in making health care accessible to women—women with health coverage are more likely to obtain needed preventive, primary, and specialty care services. Test your knowledge of women’s health coverage and the effect of the Affordable Care Act on women with our ten-question quiz.