Medicaid Expansion Under the ACA: State updates
Table of Contents
A look at which states have expanded Medicaid coverage and the impact of the Affordable Care act.
The Affordable Care Act (ACA) aimed to broaden healthcare access, notably through Medicaid expansion. This expansion allows nearly all adults with incomes up to 138% of the Federal Poverty Level (FPL) to be eligible for Medicaid. In 2025, this translates to an individual income of $21,597 or less [[1]]. The ACA also provides states with an enhanced federal matching rate (FMAP) to support these expanded populations.
As of today, 41 states (including DC) have embraced the Medicaid expansion, while 10 states have chosen not to adopt it. This data reflects ongoing tracking and analysis of state expansion activities.
For a detailed breakdown, data is available in table format and a downloadable Powerpoint.
“To date, 41 states (including DC) have adopted the Medicaid expansion and 10 states have not adopted the expansion.”
Understanding Medicaid Expansion
The Medicaid expansion under the ACA has been a significant point of discussion and policy change across the United States. States that have adopted the expansion receive increased federal funding to cover the healthcare costs of the newly eligible population. This has led to debates about the financial implications and the overall impact on healthcare access and quality.
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