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ACA insurance coverage uninsured graphic thumbnail. ACA implemented 2013, in 2023 uninsurance rate cut in half.

15 Years of the Affordable Care Act: More Americans Than Ever Have Health Insurance Coverage

Sunday, March 23, 2025 marked 15 years since the Affordable Care Act (ACA) was signed into law. In this post, we take a look at what the Affordable Care Act is, how it’s changed America’s insurance coverage rates, and the impact of the ACA on uninsured populations.

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Find state-level analysis of health care access, health care cost & affordability, health behaviors & outcomes, and more that go beyond standard indicators of health insurance coverage.

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The Latest from SHADAC

Mental Health Data and Resources from SHADAC and Beyond

SHADAC has compiled this blog filled with mental health data and resources. First, we’ll review some mental health survey data sources you could consider using for your own research on mental health in the United States. Then, we’ll review a sample of relevant blogs, publications, and resources.

Measuring Consumer Health Care Costs and Affordability in State Health Surveys

This Basics Blog explores health care costs and affordability by defining key terms and summarizing how some of the most recent state-level household surveys are asking health care consumers about these topics.

Who’s Left Out? Exploring Minnesota’s Uninsured Population with Interactive Maps

Our updated uninsured profile mapping tool helps make complex health data easier to understand, providing a visual companion to the tool’s Excel spreadsheet. In this post, we look at the map’s features and how you can use it to explore uninsurance and health care access in MN.

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Explore state-level data. Create data visualizations. View and download customized data sets, facts, and figures on key health and health care topics.

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Recent Publication

Report: Insurance Coverage Transitions After the Medicaid Unwinding

New SHADAC Brief Uses CPS Data to Study Insurance Coverage Transitions After Medicaid Unwinding

This brief studied insurance coverage transitions after the Medicaid unwinding using 2024 Current Population Survey data, including understanding the share of those who transitioned off of Medicaid to other coverage or became uninsured, and the factors associated with various transition types.

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Public Health & Health Policy Resources

Comparing Federal Government Surveys That Count the Uninsured: 2024

Accurate estimates of uninsured rates (the percentage of people that do not have insurance coverage, also referred to as uninsurance) are important in understanding trends and the impacts of actions, events, or shifts in the economic landscape that may affect health insurance coverage. Learn more…