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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 Decline in the Uninsured in 2007: Why Did It Happen and Can It Last?

    Issue Brief

    This policy brief examines the underlying shifts in health insurance coverage in 2007, which resulted in a 1.5 million decrease in the number of uninsured people under age 65, due to increased public coverage. This includes about 300,000 in Massachusetts, which implemented its comprehensive health reform that year. The brief also projects that the current economic downturn and rising unemployment rate likely will cause the number of uninsured to grow by at least 2 million…

  • Kaiser Health Tracking Poll: Election 2008 — September 2008

    Poll Finding

    The latest Kaiser Health Tracking Poll: Election 2008 finds that health care has crept up in importance as an election issue in recent months among a key voting group: political independents, who ranked it as highly as Democrats did in this poll.  Roughly one in four (26%) independents rank health care as one of the top issues they would "most like to hear the presidential candidates talk about." Health care's importance has risen among independents by…

  • Vermont Health Care Reform Plan

    Fact Sheet

    On May 25, 2006, Vermont Governor Jim Douglas signed into law comprehensive health care reform legislation. The plan is designed to increase access to affordable health care while reducing cost through quality improvement measures. The plan requires employers to provide or help finance coverage for their workers. For individuals, participation in the new coverage program is voluntary, though the state legislature will reevaluate the need for an individual mandate if 96 percent of state residents…

  • Medicaid and Family Planning: Background and Implications of the ACA

    Issue Brief

    This brief reviews the role of Medicaid in financing and enabling access to family planning services for low-income women; discusses how states have expanded access to these services with Medicaid; and highlights future programmatic challenges in the context of the health care delivery and coverage reforms resulting from the Affordable Care Act (ACA).

  • Kaiser Health Tracking Poll — October 2011

    Feature

    The October health tracking poll finds a more negative overall public mood about the health reform law, driven largely by changes in support for the law among Democrats. The poll also asked the public’s impressions of the Massachusetts health reform law enacted under then- Gov. Mitt Romney, who is now a candidate for the Republican presidential nomination. Findings from the poll include: After remaining roughly evenly split for most of the last year and a…

  • Pulling it Together: Business and Health Care Costs

    Perspective

    Hidden away on page 218 of our annual Employer Health Benefits Survey is a table that shows what employers think of the main strategies they have to control health care costs.  More specifically, the table shows what the person in the firm responsible for its health benefits thinks, which is whom we survey.  The short answer is, employer confidence in their own ability to control costs is not high. Not more than about a quarter…

  • Kaiser Health Tracking Poll — August 2011

    Feature

    The August tracking poll examines the views of Americans without health insurance, with a particular focus on how they think the health reform law will affect them. Findings from the poll include: Although estimates are that 32 million uninsured Americans will gain coverage 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. Perhaps because awareness of…

  • Pulling it Together: 19.7

    Perspective

    Several years ago Joanne Silberner from NPR offered some advice I liked. Joanne said that the secret to effective communication was to "have a killer anecdote and a killer number." Here is a killer number: 19.7. That's the average number of years between major attempts at health reform since Harry Truman made health reform a top priority and his plan was branded a socialist plot and soundly defeated in 1950. The chart below chronicles the…

  • Pulling it Together: What Will Health Reform Do For Me?

    Perspective

    There is one poll number that may be more important to watch than any other if we have a big debate about health reform: The percentage of Americans who think that they or their families would be better off if the president and the Congress enacted major health reform legislation. It's a number that signals whether people think that health reform legislation will actually help them with the problems they are having in the current…