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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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  • Low-Income and Uninsured: The Challenge for Extending Coverage

    Event Date:
    Event

    Diane Rowland, executive director of the Commission, testified to the Senate Committee on Finance about the low-income uninsured. The testimony provides a comprehensive description and analysis of the population and discusses the challenges of providing them health coverage. Please note: the video is no longer available.

  • Medicaid Overview: Briefing Charts

    Report

    Complements the Medicaid primer by providing basic information and statistics about the program through a series of charts.

  • Designing Health Purchasing Alliances/Cooperatives: Federal Policy Issues and Options

    Other Post

    A comparison of the key features of alliance design in the Clinton, Chafee/Thomas, and Cooper/Breaux health reform proposals of 1994, examining the trade-offs inherent in alternative alliance design.(For more information about alliances, see #2063, Permitting Voluntary Enrollment in Regional Alliances Under the Health Security Act: The Impact on Spending for Employers and the Federal Government.

  • Key Facts: Women and Medicare

    Report

    Medicare is a critical source of health insurance coverage for virtually all older women in the U.S. and for many younger women who have permanent disabilities. Today, 22 million women one in five adult women rely on Medicare for basic health insurance protection. In fact, women comprise 57% of the Medicare population.

  • Medicaid and Managed Care

    Fact Sheet

    This fact sheet provides an overview of the Medicaid program's increasing reliance on managed care to deliver services.

  • Health Insurance Coverage in America: 1999 Data Update

    Report

    Health Insurance Coverage in America: 1999 Data Update This chart book provides the latest information on health insurance coverage, with special attention to the uninsured. It includes trends and major shifts in coverage and a profile of the uninsured population. Chartbook Link to other Health Insurance Coverage in America chartbooks.

  • The Uninsured in Rural America

    Fact Sheet

    Summarizes the number of uninsured individuals in rural America, who they are, and the barriers to coverage they experience.

  • Prescription Drug Coverage for the Medicare Population

    Report

    Diane Rowland, executive director of the Commission, testified to the Subcommittee on Health of the U.S. House Committee on Energy and Commerce about providing prescription drugs to seniors. Her testimony includes discussion of Medicaid's role in providing outpatient drug coverage.

  • Managed Care and Low-Income Populations: A Case Study Of Managed Care In Florida

    Report

    This study is part of a larger initiative, the Kaiser/Commonwealth Low-Income Coverage and Access project funded by both the Henry J. Kaiser Family Foundation and The Commonwealth Fund, to gauge the impact of health restructuring on access and health insurance coverage for low-income populations in seven states through surveys, focus groups and case studies.