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Affordable Care Act

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.”

new and noteworthy
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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  • What Might a Repeal of the Affordable Care Act Mean for Medicare?

    News Release

    As Republican policymakers consider how to repeal and replace the Affordable Care Act (ACA), they are likely to face a number of decisions about whether to retain any of the law’s changes to Medicare. Repealing the ACA has potential implications for Medicare spending, beneficiaries, and other stakeholders, according to a new Kaiser Family Foundation brief. A full repeal of the ACA would undo all of the law’s changes to Medicare and would increase Medicare spending,…

  • Kaiser Health Tracking Poll: Health Care Priorities for 2017

    Feature

    The most recent Kaiser Health Tracking Poll finds that health care is among the top issues, with the economy and jobs and immigration, Americans want President-elect Donald Trump and the next Congress to address in 2017. As Congressional lawmakers make plans for the future of the Affordable Care Act, the latest survey finds the public is divided on what they would like lawmakers to do when it comes to the 2010 health care law with…

  • The Health Care Plan Trump Voters Really Want

    From Drew Altman

    In a New York Times op-ed, Drew Altman draws on observations from focus groups in rust belt states of people in the Affordable Care Act (ACA) marketplaces who voted for President-elect Trump and say they may not like their coverage under the ACA but could like Republican replacement plans even less.

  • The Future of Contraceptive Coverage

    Issue Brief

    This issue brief explains the Affordable Care Act's current contraceptive coverage rule, the impact it has had on women, and the state of contraceptive coverage if the rule is eliminated or modified.

  • Interactive Maps: Estimates of Enrollment in ACA Marketplaces and Medicaid Expansion

    Interactive

    As the 115th U.S. Congress deliberates the future of the Affordable Care Act, also known as Obamacare, an interactive map from the Kaiser Family Foundation provides estimates of the number of people in each congressional district who enrolled in a 2017 ACA marketplace health plan and the political party of each district’s representative as of October 2017. The analysis also includes maps charting the total number of people enrolled under the ACA Medicaid expansion in…

  • New Interactive Map with Local Data: Estimated 2016 ACA Marketplace Enrollment by Congressional District

    News Release

    As the 115th U.S. Congress deliberates the future of the Affordable Care Act, also known as Obamacare, a new interactive map from the Kaiser Family Foundation provides estimates of the number of people in each congressional district who enrolled in a 2016 ACA marketplace health plan and the political party of each district’s representative as of January. The analysis also includes maps charting by state the total number of people enrolled under the ACA Medicaid…

  • Comparison of Medicare Provisions in Recent Bills and Proposals to Repeal and Replace the Affordable Care Act

    Issue Brief

    Repealing and replacing the Affordable Care Act is a top priority of the Trump Administration and the Republican leadership, which could have implications for the Medicare program. This brief provides a side-by-side comparison of the Medicare-related provisions in six bills and proposals that would repeal the ACA, excluding proposals that would not directly affect Medicare.

  • Web Briefing for Journalists: Repealing and Replacing Obamacare

    Event Date:
    Event

    On Wednesday, January 25, the Kaiser Family Foundation hosted a web briefing for journalists to answer questions and sort through possible scenarios for repealing and replacing the Affordable Care Act, also known as Obamacare, including implications for coverage, the insurance market, the Medicaid program, and women’s health.