More Americans than ever have health coverage through the ACA

June 7, 2021

The U.S. Department of Health and Human Services (HHS) released a new report that shows 31 million Americans have health coverage through the Affordable Care Act – a record. The report also shows that there have been reductions in uninsurance rates in every state in the country since the law’s coverage expansions took effect.

People served by the health Marketplaces and Medicaid expansion have reached record highs. The data shows those individuals currently enrolled in health coverage through the Health Insurance Marketplaces and Medicaid expansion under the ACA, including 11.3 million people enrolled in the ACA Marketplace plans as of February 2021 and 14.8 million newly eligible people enrolled in Medicaid through the ACA’s expansion of eligibility to adults as of December 2020.

In addition, there are one million people enrolled in the ACA’s Basic Health Program, and nearly four million previously eligible adult Medicaid enrollees who gained coverage under expansion due to the ACA’s enhanced outreach, streamlined applications, and increased federal funding under the ACA. Today’s report shows the important role the ACA has played in providing coverage to millions of Americans nationwide.   

The report also shows that between 2010 and 2016, the number of nonelderly uninsured adults decreased by 41 percent, falling from 48.2 million to 28.2 million. All 50 states and the District of Columbia have experienced reductions in their uninsured rates since the implementation of the ACA, with states that expanded Medicaid experiencing the largest reduction in their uninsured rate. California, Kentucky, New York, Oregon, Rhode Island, Washington, and West Virginia have reduced their uninsured rate by at least half from 2013 to 2019 through enrollment in Marketplace coverage and expansion of Medicaid to adult populations. To date, 37 states and the District of Columbia have expanded Medicaid to cover adults under the ACA.

“Health care coverage is life-changing for our communities and families. Thanks to the Affordable Care Act millions of Americans have been able to enroll in high-quality, affordable coverage through the Marketplaces and Medicaid expansion,” said CMS Administrator Chiquita Brooks-LaSure. As we rebuild from the health and economic impacts of the pandemic and work to address the disparities it has illuminated, we’ll protect and build on the ACA to ensure Americans can access the care they need.”

The report demonstrates the important role the ACA has played in helping Americans access and enroll in quality, affordable health coverage, especially during the COVID-19 crisis. With millions of Americans facing uncertainty and challenging circumstances throughout the pandemic, the Biden-Harris Administration opened for a Special Enrollment Period (SEP) to help Americans enroll in health insurance coverage. To date, more than one million new consumers have signed up for coverage through during the SEP since February 15. As new Marketplace consumers activate their health plan coverage, ACA related enrollment will continue to climb through the end of the SEP in August.

Consumers who need coverage through the Marketplace should visit by August 15 to complete an application, review their options, and, if eligible, enroll in coverage. Consumers can find local help at or by calling the Marketplace Call Center at 1-800-318-2596. TTY users should call 1-855-889-4325. Assistance is available in 150 languages. The call is free. can also direct eligible consumers to Medicaid in their state. Consumers can apply for Medicaid any time during the year. The SEP is currently available to consumers in the 36 states with Marketplaces that use the platform in 2021. Consumers served by State-based Marketplaces that use their own platforms can check their state's website to find out more information on Special Enrollment Periods in their state.

CMS has the release.