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How Much and Why ACA Marketplace Premiums Are Going Up in 2026

This analysis of initial rate filings from all 50 states and DC shows ACA Marketplace insurers are proposing a median premium increase of 18% for 2026, more than double last year’s 7% median proposed increase. The analysis includes proposed rate changes by state and insurer.

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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  • Survey of Healthy San Francisco Participants

    Poll Finding

    This survey of enrollees in Healthy San Francisco (HSF), the city’s health care access program for the uninsured, reports high rates of satisfaction and signs that the program has improved access to care for those uninsured residents who have enrolled.

  • Summary of Coverage Provisions in the Patient Protection and Affordable Care Act

    Issue Brief

    This short summary describes the health coverage provisions contained in the final version of the Affordable Care Act signed into law in March 2010, including the individual mandate requirements, expansion of public programs, health insurance exchanges, changes to private insurance and employer requirements.

  • Health and the Economy in the Detroit Area

    Poll Finding

    One year after the federal government intervened to aid the automakers, the Foundation along with The Washington Post and Harvard School of Public Health surveyed the residents of the tri-county Detroit area of Macomb, Oakland, and Wayne Counties to ask about their views and experiences in the midst of the area’s economic meltdown.

  • Holding Steady, Looking Ahead: Annual Findings Of A 50-State Survey Of Eligibility Rules, Enrollment and Renewal Procedures, And Cost Sharing Practices in Medicaid and CHIP, 2010-2011

    Report

    The annual 50-state survey of Medicaid and CHIP eligibility rules, enrollment and renewal procedures and cost sharing practices, conducted by the Kaiser Commission on Medicaid and the Uninsured with the Georgetown University Center for Children and Families, found that, in 2010, coverage in Medicaid and the Children's Health Insurance Program remained strong with some improvements,…

  • Pulling it Together: The Most Popular Provision in the ACA?

    Perspective

    In our most recent monthly tracking poll, we asked the American people what elements of the health reform law they like and dislike. Surprisingly, the runaway favorite was a relatively obscure requirement that health plans provide consumers with a short, easy to understand description of their benefits and coverage.

  • Pulling it Together: How the ACA Can Help The Homeless

    From Drew Altman

    Estimates are that there are approximately 630,000 people who are homeless on any given night in the U.S. -- about two-thirds in shelters and one-third on the street or without real shelter. Several million people are estimated to experience homelessness over the course of a year. About two-thirds are individuals and the balance are in families.

  • Health Challenges Facing the Nation

    Event

    Diane Rowland, executive vice president of the Kaiser Family Foundation and executive director of the Kaiser Commission on Medicaid and the Uninsured, testified to the Joint Economic Committee of the U.S. Congress on health insurance coverage and how the uninsured population remains one of the nation's most pressing health care challenges. Testimony (.

  • Medicare Cost-Sharing: Implications for Beneficiaries

    Event Date:
    Event

    Tricia Neuman, Vice President and Director of the Medicare Policy Project, testified on behalf of herself and Thomas Rice, Ph.D., of UCLA's School of Public Health, before the House Ways and Means Subcommittee on Health on cost-sharing requirements under Medicare and supplemental Medigap policies.