Affordable Care Act

The ACA MarketplaceS

Individual Market Enrollment Declined by 18% Since June 2025

Individual Market Enrollment Fell 18%, Suggesting Continued ACA Marketplace Losses

Enrollment in the individual health insurance market fell by 18%—over 4.6 million people—from 25.2 million in June 2025 to 20.5 million in June 2026. Falling individual market enrollment suggests further decline in ACA Marketplace enrollment this year, since Marketplace enrollees represent the vast majority of individual market coverage.

Share of Congressional District Enrolled in ACA Marketplace, 2026

How Does ACA Marketplace Enrollment in 2026 Vary Across Congressional Districts?

KFF’s new interactive maps illustrate ACA Marketplace enrollment and changes in enrollment by congressional district and state. Marketplace enrollment declined in most congressional districts between 2025 and 2026, with two-thirds of the decline (67%) occurring in Republican-held congressional districts.

Insurer Participation Changes in the ACA Marketplaces in 2027

Change in February effectuated enrollment, by state, 2025-2026

How Has Marketplace Enrollment Changed Across States in 2026?

About the ACA

Promotional image for KFF video How Affordable is the Affordable Care Act

Did the Affordable Care Act Make Health Care More Affordable?

The expiration of the ACA’s enhanced premium tax credits at the start of 2026, combined with rising insurer premiums, put a spotlight on health care affordability that extends beyond Marketplace enrollees. KFF’s Cynthia Cox examines the ACA’s record and the broader underlying question it raises: what’s a fair price for Americans people to pay for health care?