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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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  • Health Coverage in an Economic Downturn: Impact of Tight Budgets on Families and States

    Fact Sheet

    The economic downturn has strained family finances and prompted some Americans to cut back on medications and forgo preventive care and visits to the doctor. At the same time, the downturn has triggered declines in tax revenue that inhibit states’ ability to meet rising Medicaid program costs as enrollment spikes during economic hard times.

  • Trends in Access to Care Among Working-Age Adults, 1997-2006

    Issue Brief

    Trends in Access to Care Among Working-Age Adults, 1997-2006 This policy brief finds about 39 million working-age adults nationally reported cost as a barrier to receiving needed health care in 2006, a number that grew by an average of 1 million people annually over the decade studied.

  • CHIP Enrollment: June 2011 Data Snapshot

    Issue Brief

    This data snapshot provides the latest data on Children's Health Insurance Program (CHIP) enrollment and policy trends nationally and across the states through June 2011, based on survey responses and data provided by CHIP directors in all 50 states and the District of Columbia.

  • Kaiser Health Tracking Poll: January 2014

    Feature

    With enrollment in new coverage options underway, a majority of the public believes that only “some” of the ACA’s provisions have been put into place, while just about one in five think “most” or “all” of the law has been implemented. Awareness of the law’s individual mandate and health insurance exchanges has increased slightly since last year, but about four in ten of the public overall and half the uninsured remain unaware of other major provisions. For the third month in a row, overall views of the law remain at their post-rollout more negative levels (50 percent unfavorable, 34 percent favorable), though over half the public – including three in ten of those who view the law unfavorably – say opponents should work on improving the law rather than keeping up efforts to repeal it.

  • August Kaiser Health Tracking Poll: The Uninsured and the Health Reform Law

    Perspective

    The August Kaiser Health Tracking Poll finds that even though 32 million uninsured Americans will gain health insurance under the ACA, only about half of non-elderly Americans currently without coverage say they are familiar with the chief components in the law designed to achieve this goal.

  • How Will the Uninsured in Vermont Fare Under the Affordable Care Act?

    Fact Sheet

    This state report explains how the ACA expands coverage in Vermont, including a breakdown of how many uninsured people are eligible for Medicaid, how many are eligible for financial assistance to help them buy private insurance in the new Marketplace and how many will not receive any financial assistance at all. The report also details, in specific dollar figures, the income levels at which people in Vermont are eligible for Medicaid or financial assistance in the Marketplace. For states not expanding Medicaid, the report quantifies how many uninsured people fall into the “coverage gap,” meaning they will be ineligible for financial assistance in the Marketplace or for Medicaid in their state despite having an income below the federal poverty level.

  • The Cost of Cancer

    Video

    This Kaiser Family Foundation documentary explores the financial consequences faced by three people, all privately insured, after being diagnosed with cancer. It was released in conjunction with a joint Kaiser/American Cancer Society report, "Spending To Survive: Cancer Patients Confront Holes in the Health Insurance System.

  • What is Medicaid’s Impact on Access to Care, Health Outcomes, and Quality of Care? Setting the Record Straight on the Evidence

    Issue Brief

    Medicaid now covers more than 1 in every 5 Americans, and millions of uninsured individuals will become newly eligible for Medicaid under the ACA. Considering Medicaid’s large and growing coverage role, an evidence-based assessment of the program’s impact on access to care, health outcomes, and quality of care is of major interest. This brief takes a look at what the research literature shows regarding the difference Medicaid makes.