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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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  • How Buying Insurance Will Change Under Obamacare

    Perspective

    When the Affordable Care Act’s (ACA) health insurance marketplaces (also known as “exchanges”) go online this October, millions of people are expected to apply for private insurance coverage. Nobody expects the launch will be perfect, with no hitches and problems.  The law not only replaces a fragmented and confusing assortment of plan options in today’s individual insurance market, but it also integrates tax credits to help people pay their premiums, which requires an entirely new…

  • California’s Uninsured on the Eve of ACA Open Enrollment

    Report

    This report presents the findings of a baseline survey of California’s uninsured adult population just before the start of the first open enrollment period under the Affordable Care Act (ACA). It will be followed by three other surveys over the course of the next two years that will capture the changing experiences and attitudes of this same group of 2,000 people over time, whether they obtain coverage or remain uninsured. The report analyzes the uninsured…

  • First Wave of Major New Survey Project on California’s Uninsured

    News Release

    California’s Uninsured Struggle With Costs and Access And Say They Want Insurance, But Most Have Heard Little About The Affordable Care Act, And Many Who Are Likely To Be Eligible For Medi-Cal or Exchange Subsidies Don’t Know It Many Undocumented Immigrants in CA Think They Will Get Coverage Through the ACA But Won’t Menlo Park, Calif. – California’s uninsured are skipping medical care, struggling with costs and want coverage, but many report knowing little about…

  • Obamacare and You: If You Have Medicare…

    Fact Sheet

    This short explainer highlights some of the key information for people with Medicare about how Affordable Care Act, also known as Obamacare, may affect them.

  • State Exchange Profiles: Nebraska

    Other Post

    Final update made on December 19, 2013 (no further updates will be made) Establishing the Exchange On November 15, 2012, Governor Dave Heineman (R) announced that Nebraska would not establish a health insurance exchange.1Earlier in 2012, the Nebraska legislature introduced two bills (LB 835 and LB 838) to establish a health insurance exchange in Nebraska, however both failed when the legislative session concluded in April.2,3 In 2011, Governor Heineman signed LB 22 into law, which…

  • State Marketplace Profiles: New Hampshire

    Other Post

    Final update made on November 1, 2013 (no further updates will be made) Establishing the Marketplace On June 18, 2012, Governor John Lynch (D) signed HB 1297 into law, which prohibits the state from participating in or enabling a state-based health insurance Marketplace. However, HB 1297 allows for state agencies or departments to “operate specific functions of a federally-facilitated exchange."1  Given this authority, newly-elected Governor Maggie Hassan (D) informed federal officials on February 13, 2013 that…

  • State Marketplace Profiles: New Mexico

    Other Post

    Final update made on October 25, 2013 (no further updates will be made) Establishing the Marketplace On March 28, 2013, Governor Susana Martinez (R) signed legislation creating the New Mexico Health Insurance Exchange (NMHIX). Governor Martinez had vetoed previous legislation that would have established a Marketplacein 2011; however, the state had moved forward with a plan to create the New Mexico Health Insurance Exchange within the New Mexico Health Insurance Alliance.1  The Alliance was created…

  • State Marketplace Profiles: Colorado

    Other Post

    Final update made on November 8, 2013 (no further updates will be made)  Establishing the Marketplace On June 1, 2011, Governor John Hickenlooper (D) signed SB 11-200 into law, establishing the Colorado Health Benefit Exchange.1  In January 2013, the Exchange announced that the online Marketplace would be called Connect for Health Colorado (C4HCO). Structure: The legislation defines Colorado’s Marketplace as a quasi-governmental organization, specifically a "nonprofit unincorporated public entity." Governance: The Marketplace is governed by a 12-member board.…