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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.”

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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

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  • Findings from the Field: Enrollment and Consumer Assistance in Four States in Year Three of the ACA

    Issue Brief

    Based on case studies and focus groups, this brief reviews experiences with Medicaid and Marketplace enrollment, renewal, and consumer assistance in Colorado, Connecticut, Kentucky, and Washington as of Spring 2016. These states implemented the Medicaid expansion and established a state-based Marketplace (SBM) in 2014. This brief builds on previous reports that examined states’ preparation for implementation prior to the initial ACA open enrollment period and their experiences after completion of the first and second open enrollment periods.

  • Findings from the Field: Medicaid Delivery Systems and Access to Care in Four States in Year Three of the ACA

    Issue Brief

    Based on case studies and focus groups, this brief reviews delivery systems and access to care for Medicaid enrollees in Colorado, Connecticut, Kentucky, and Washington as of Spring 2016. The findings provide an on-the-ground view of Medicaid delivery systems and enrollees’ experiences accessing care three years after implementation of the Medicaid expansion. This brief builds on previous reports that examined states’ preparation for implementation prior to the initial ACA open enrollment period and their experiences after completion of the first and second open enrollment periods.

  • Nearly 54 Million Americans Have Pre-Existing Conditions That Would Make Them Uninsurable in the Individual Market without the ACA

    News Release

    Almost Half of Non-Elderly Families have At Least One Adult with a Pre-Existing Condition An updated KFF analysis estimates that almost 54 million people – or 27% of all adults under 65 —have pre-existing health conditions that would likely have made them uninsurable in the individual markets that existed in most states before the Affordable…

  • 2019 Health Insurance Marketplace Calculator

    Interactive

    The Health Insurance Marketplace Calculator, updated with 2019 premium data, provides estimates of health insurance premiums and subsidies for people purchasing insurance on their own in health insurance exchanges (or “Marketplaces”) created by the Affordable Care Act (ACA). With this calculator, you can enter your income, age, and family size to estimate your eligibility for subsidies and how much you could spend on health insurance.

  • Poll: Democrats Like Both the Public Option and Medicare-for-all, But Overall More People Support the Public Option, Including a Significant Share of Republicans

    News Release

    Lowering Drug Costs and Maintaining Pre-existing Condition Protections Top Public’s Health Priorities for Congress With the first votes of the 2020 Democratic presidential primary season approaching, large majorities of Democrats – and most of the public overall – support both of the major approaches primary candidates have put forward to expand coverage and make health…

  • Health Issues and the Election Quiz

    Feature

    Test your knowledge about health facts, policy issues and proposals that are emerging among the 2020 presidential candidates. The 10 questions focus on health issues in the 2020 election, including: health care costs, prescription drug prices, the Affordable Care Act and changes in health insurance coverage, reproductive health, and Medicare-for-all and public option proposals.

  • Sexually Transmitted Infections (STIs): An Overview, Payment, and Coverage

    Fact Sheet

    More people have health insurance than ever before under the Affordable Care Act (ACA), which emphasizes preventive care, including no-cost HIV and STI counseling and screening for recommended populations. This fact sheet examines trends and disparities in STI prevalence, reviews the STI screening and preventive care coverage policies for private insurance and public programs, and discusses coverage gaps and confidentiality concerns in the provision of these services.

  • Tracking the Role of Health Care in the 2020 Election: What Do The Polls Tell Us

    Perspective

    In this February 2020 post for The JAMA Health Forum, Mollyann Brodie and Ashley Kirzinger examine the role health care has played in the primary election to date, what the polling data says about the issue, including Medicare-for-all and a public option, and what to expect from the issue during the rest of the 2020 election campaign.

  • The Role Of Health Care In The 2020 Election

    Interactive

    This interactive map highlights what voters from the 2020 general election and Democratic primary voters said about health care as they vote, based on KFF's analysis of the state-level AP VoteCast data collected in most states. The primary election data also includes state-specific charts highlighting where health care ranks as issue, views about a single-payer health plan and a public option, and other health care findings from the AP VoteCast data with key demographic breakouts.