ACA Marketplaces Continue to See Record-Breaking Enrollment

Over 20 million people have enrolled in Affordable Care Act marketplace coverage since the start of the 2024 open enrollment period (OEP), reaching a record for the third consecutive year, according to CMS. Over 3.7 million people who have signed up for ACA plans are new enrollees this year.

More than 15.5 million people have enrolled through HealthCare.gov in the 32 states that use that platform, and another 4.8 million have enrolled across 18 states and the District of Columbia, which use their own marketplaces.

After adjusting enrollment figures to account for the fact that there is one fewer day included in the 2024 OEP data compared to last year’s report, an ACAsignups.net analysis showed that every state except Maine and the District of Columbia saw membership growth in 2024, ranging from 2.8% in Hawaii to 78.8% in West Virginia. A total of 10 states reported signup surges of more than 50%.

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Jinghong Chen

Jinghong Chen Reporter

Jinghong has been producing infographics and data stories on employer-sponsored insurance, public health insurance programs and prescription drug coverage for AIS Health’s Health Plan Weekly and Radar on Drug Benefits since 2018. She also manages AIS Health’s annual executive compensation database for top insurers and Blue Cross and Blue Shield affiliates. Before joining AIS Health, she interned at WBEZ, Al Jazeera English and The New York Times Chinese. She graduated from Missouri School of Journalism with a focus on data journalism and international reporting.

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