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The ACA Marketplace

2025 KFF Marketplace Enrollees Survey

In 2025, about one in three ACA enrollees said they would be “very likely” to look for a lower-premium Marketplace plan If their premium payments doubled.

Cost Concerns and Coverage Changes: A Follow-Up Survey of ACA Marketplace Enrollees

Following the expiration of the enhanced premium tax credits for people with Affordable Care Act (ACA) Marketplace plans, a new KFF follow-up survey of the same Marketplace enrollees KFF surveyed in 2025 finds half (51%) of returning enrollees say their health care costs are “a lot higher” this year compared to last year, including four in 10 who specifically say their premiums are “a lot higher.”

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POLLING

Tracking the Public’s Views on the ACA

While overall opinion of the Affordable Care Act has been more favorable than unfavorable since 2017, there remain deep partisan divides. See how public opinion on the ACA has changed from the inception of the law to the present. This interactive tool highlights key moments when views shifted and trends based on party identification, income, age, gender, and race/ethnicity.
DATA

Marketplace Enrollment is Down in 2026—But All of the Data Isn’t in Yet

ANALYSIS

Higher Premium Payments or Higher Deductibles: The ACA's Tradeoffs

QUIZ

Test Your Knowledge of the Affordable Care Act

ANALYSIS

Competition Increased in Individual Market But Fell in Fully Insured Group Markets

Timely insights and analysis from KFF staff

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  • The State of Children’s Health, Care and Coverage

    Event Date:
    Event

    A record 90 percent of children now have health coverage – more than a third of whom are covered by Medicaid and CHIP. Yet about 7.5 million children remain uninsured, including 5 million who are eligible for Medicaid and CHIP but not enrolled. Who are the at-risk kids? How are states faring with enrollment and retention? How will children and families be affected once major parts of the Patient Protection and Affordable Care Act (ACA)…

  • Pulling It Together: A Public Opinion Surprise

    Perspective

    Medicaid is the nation’s primary health insurance program for low-income people and people with disabilities, covering more than 60 million people this year.  And it's about to get a lot of attention: it's likely to be a prime target for spending reductions by "deficit hawks" in debate over the budget; governors are arguing that federal rules requiring them to maintain coverage under Medicaid tie their hands at a time when they are trying to crawl…

  • The Digital Divide And Access To Health Information Online

    Poll Finding

    The Affordable Care Act (ACA) calls for a number of web-based initiatives, including development of the website healthcare.gov which provides a variety of health information and helps individuals find coverage options. Therefore, understanding the level and quality of Internet access among those groups most likely to benefit from reform, such as the uninsured, those with lower incomes, and members of racial and ethnic minority groups, is an important consideration as health reform is implemented. A…

  • Kaiser Health Tracking Poll — April 2011

    Feature

    As Congress and the president debate different approaches to reducing the deficit, the April Kaiser Health Tracking Poll indicates that initial public reaction is fairly evenly split when a premium support/voucher program like the one in House Budget Committee Chairman Paul Ryan’s "Path to Prosperity" proposal is described, but seniors prefer to keep the current Medicare system by a 2‐to‐1 margin. Meanwhile, public opinion on the health reform law remains remarkably steady. The April poll…

  • Physician Willingness and Resources to Serve More Medicaid Patients: Perspectives from Primary Care Physicians

    Issue Brief

    This issue brief attempts to assess how primary care physicians will respond to the entry of 32 million newly insured people into the health care system under health reform. The increase in the number of people with health coverage is expected to intensify competition among patients and payers for primary care resources. The brief analyzes data from a nationally representative survey of physicians to assess which adult-care primary care physicians are most likely to respond…

  • Federal Core Requirements And State Options In Medicaid: Current Policies And Key Issues

    Fact Sheet

    Medicaid is a jointly financed partnership between the federal government and states. The federal-state financing and administrative structure of Medicaid provides a framework of federal core requirements along with broad state options for program design and administration. This issue brief presents an overview of the current Medicaid program framework, with a focus on eligibility, benefits and cost sharing, care delivery and provider payment, long-term services and supports, and dual eligibles, as well as key issues…

  • What the Actuarial Values in the Affordable Care Act Mean

    Issue Brief

    The Patient Protection and Affordable Care Act (PPACA) establishes four levels of coverage based on the concept of "actuarial value," which represents the share of health care expenses the plan covers for a typical group of enrollees. As plans increase in actuarial value – bronze, silver, gold, and platinum – they would cover a greater share of enrollees' medical expenses overall, though the details could vary across plans. The levels of coverage provided for in…

  • Medicaid Policy Options for Meeting the Needs of Adults with Mental Illness under the Affordable Care Act

    Issue Brief

    This paper examines the salient issues raised in a November 2010 roundtable discussion of national and state experts convened by the Kaiser Commission on Medicaid and the Uninsured, in partnership with the Bazelon Center for Mental Health Law, to discuss Medicaid policy options available under health reform to help meet the needs of adults with mental illness. The Patient Protection and Affordable Care Act will expand the Medicaid program, offering the opportunity to improve access…

  • Implications Of A Federal Block Grant Program For Medicaid

    Issue Brief

    This issue brief examines the broad implications of converting Medicaid to block grant financing, one of several ideas that have been put forth to help reduce the federal deficit. The paper, which does not analyze any specific proposal, notes that switching to block grant financing would fundamentally alter the Medicaid program and could have significant implications for states, localities, beneficiaries and health care providers. Issue Brief (.pdf) Related Resources: Prior Analyses of Block Grant Proposals…

  • Trends in the Use of Hospital and Provider Quality Ratings

    Poll Finding

    With a renewed emphasis on health care quality driven by the Affordable Care Act, this polling data note examines historical trends in Americans' reliance on quality ratings and how their perceptions have changed over time. Data Note (.pdf)