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Change in February effectuated enrollment, by state, 2025-2026

How Has ACA Marketplace Enrollment Changed Across States in 2026?

ACA Marketplace enrollment fell this year in every state except New Mexico—the only state to fully replace the enhanced premium tax credits that expired last year with a state-funded subsidy, according to a new KFF analysis of effectuated enrollment data. The Marketplace enrollment decline—the first in seven years—follows several years of rapid enrollment growth and coincides with the end of the enhanced federal subsidies.

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More than 800 up-to-date, state-level health indicators can be mapped, ranked, and downloaded.

Explore the latest national and state-specific data and policies on women’s health, including health status, insurance coverage, use of preventive services, and more.

Most "dual-eligible" individuals (8.9 million in 2024) are eligible for Medicaid benefits that are not otherwise covered by Medicare, including long-term care.

Use this tool to build a custom report compiling health-related data for a single state or multiple states.

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  • California’s Health Care Environment and Health Reform Efforts: June 2013 Update

    Issue Brief

    This brief provides and update of the health care and health policy environment in California, discussing the budgetary environment, implementation of the state's "Bridge to Reform" Medicaid waiver, and efforts to prepare for coverage expansions and new coverage options in 2014 under the Affordable Care Act.

  • Enrollment-Driven Expenditure Growth: Medicaid Spending During the Economic Downturn, FY 2007-2011

    Report

    This report presents data on changes in Medicaid's enrollment and spending between federal fiscal year 2007 and federal fiscal year 2011, a period which includes the worst economic downturn in the United States since the Great Depression of the 1930s. The paper also examines what factors drove Medicaid spending over the period, and concludes that overall spending growth from 2007 to 2011 was driven largely by the enrollment growth that resulted from many people losing…

  • Quick Take: Key Considerations in Evaluating the ACA Medicaid Expansion for States

    Fact Sheet

    A central goal of the Patient Protection and Affordable Care Act (ACA) is to significantly reduce the number of uninsured by providing a continuum of affordable coverage options through Medicaid and new Health Insurance Exchanges.  Following the June 2012 Supreme Court decision, states face a decision about whether to adopt the Medicaid expansion. These decisions will have substantial consequences for health coverage for the low-income population. The 3 key questions that states should consider in…

  • Medicaid and Its Role in State/Federal Budgets and Health Reform: A Fact Sheet

    Fact Sheet

    This fact sheet highlights key issues about Medicaid, including the structure, financing and purpose of the program, its role for low-income beneficiaries, its share of the federal budget and state budgets and the significant implications of the coverage expansion under the Affordable Care Act. Fact Sheet (.pdf) Related chartpack: Medicaid and Its Role in State/Federal Budgets and Health Reform

  • Medicaid and Its Role in State/Federal Budgets & Health Reform

    Fact Sheet

    This chartpack from the Kaiser Commission on Medicaid and the Uninsured addresses five key questions about the Medicaid program. They include: What is Medicaid and what does it do? What does Medicaid cost and why? What is Medicaid's role in state budgets? What is Medicaid's role in the federal budget? What is Medicaid's role in health reform? Chartpack (.pdf) Related fact sheet: Medicaid and Its Role In State/Federal Budgets and Health Reform

  • Medigap: Spotlight on Enrollment, Premiums and Recent Trends

    Report

    Medicare supplemental insurance, also known as "Medigap," is an important source of supplemental coverage for nearly one in four people on Medicare. Traditional Medicare has cost-sharing requirements and significant gaps in coverage; Medigap helps make health care costs more predictable and stable for beneficiaries by covering some or all Medicare costs, including deductibles and cost-sharing. This policy brief provides an overview of the Medigap market, national trends in enrollment and premiums, variations across plan types…

  • Market Share of Largest Insurance Carrier in the Individual Insurance Market, 2010

    Feature

    Market Share of Largest Insurance Carrier in the Individual Insurance Market, 2010 Download Source Kaiser Family Foundation analysis of 2010 insurer filings to the National Association of Insurance Commissioners and the California Department of Managed Health Care using the Mark Farrah Associates Health Coverage Portal TM. Market share was calculated as the percent of the state’s individual insurance market enrollment accounted for by each parent company (measured in member months)  

  • Health Insurance Premiums in the Individual Market in 2010

    Feature

    Health Insurance Premiums in the Individual Market in 2010 Download Source Kaiser Family Foundation analysis of 2010 insurer filings to the National Association of Insurance Commissioners using the Mark Farrah Associates Health Coverage Portal. The Average premium is calculated as total premium revenues in a state divided by the number of total member months. The per member per month premium is an average across adults and children, so will be lower than a premium typically…

  • Premium Assistance in Medicaid and CHIP: An Overview of Current Options and Implications of the Affordable Care Act

    Issue Brief

    Premium assistance is the use of public funds through Medicaid or the Children’s Health Insurance Program (CHIP) to purchase private coverage. States have pursued premium assistance with varied objectives, including covering parents not otherwise eligible for public coverage and promoting the use of private coverage. Implementation of the Affordable Care Act (ACA) coverage expansions is likely to spark renewed interest in premium assistance options. This brief provides an overview of premium assistance options and examines…