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KFF’s policy research provides facts and analysis on a wide range of policy issues and public programs.
KFF designs, conducts and analyzes original public opinion and survey research on Americans’ attitudes, knowledge, and experiences with the health care system to help amplify the public’s voice in major national debates.
KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the organization’s core operating programs.
State Health Facts is a KFF project that provides free, up-to-date, and easy-to-use health data for all 50 states, the District of Columbia, and the United States. It offers data on specific types of health insurance coverage, including employer-sponsored, Medicaid, Medicare, as well as people who are uninsured by demographic characteristics, including age, race/ethnicity, work status, gender, and income. There are also data on health insurance status for a state's population overall and broken down by age, gender, and income.
This page displays an interactive map of the current status of state decisions on the Affordable Care Act's Medicaid expansion. Additional Medicaid expansion resources are listed (with links) below the map.
This brief provides data on health and health care experiences of uninsured immigrant adults based on a KFF survey of immigrant adults ages 18 and older conducted in partnership with The New York Times in Fall 2025. The data provide insight into how the projected coverage losses under the 2025 reconciliation law may impact health and health care for immigrant families as more lawfully present immigrants become uninsured.
This analysis estimates that 1.2 million uninsured individuals in the ten states without Medicaid expansion, including many working adults, people of color, and those with disabilities, remain in the "coverage gap," ineligible for Medicaid or for tax credits that would make coverage affordable through the Affordable Care Act's Marketplaces.
The interactive map shows the increase in states with laws restricting abortion coverage in Medicaid and private insurance in 2010 compared to the present.
As the 2026 midterms approach, health care costs remain voters' top health priority, but fraud in government health programs, including Medicaid and Medicare, is resonating with Republican voters, 55% of whom say it's extremely important for candidates to address. Most voters say there is at least “some” fraud in government health programs, but larger shares say there is fraud in the tax system, defense, and foreign aid, while the smallest share sees fraud in the…
This page tracks recent state actions to extend Medicaid postpartum coverage, including approved and pending 1115 waivers, legislation that will require the state to seek federal approval through a SPA or 1115 waiver, submitted and approved SPAs, and coverage financed solely with state funds.
The contraceptive implant is the most effective method of birth control available, and while it’s use is still low compared to other methods, its provision and use are increasing.
This news release highlights that a KFF analysis finds that 3.8 million Medicare beneficiaries met the criteria to be eligible for the new Medicare GLP-1 Bridge, based on claims data from 2023. The temporary program will provide coverage of three GLP-1 drugs used for weight reduction and weight management to eligible Medicare beneficiaries.
This interactive tracks announced insurer exits from and entries into the ACA Marketplaces for 2027.
The number and share of people without insurance grew in 2024, increasing for the first time since 2019, according to KFF's analysis of data from the American Community Survey (ACS). This issue brief describes trends in health coverage in 2024, examines the characteristics of the uninsured population , and summarizes the access and financial implications of not having coverage.
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