The independent source for health policy research, polling, and news.
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 Visualizing Health Policy infographic, produced in partnership with the Journal of the American Medical Association (JAMA), looks at barriers to care experienced by women in the United States.
Insurance Coverage Among People with HIV, 2014 Download
KFF's Tricia Neuman's testimony before the U.S. House Committee on Ways and Means on June 12, 2019 describes a range of proposals to broaden health insurance coverage and make health care more affordable, the similarities and differences among them, and the policy choices and trade-offs that could have significant implications for coverage and costs.
This data note describes uninsured nonelderly adults with opioid use disorder, including their demographic characteristics, health status, and access to treatment.
The Uninsured and the ACA: A Primer provides information on how insurance has changed under the ACA and more recent policy changes, how many people remain uninsured, who they are, and why they lack health coverage. It also summarizes what we know about the impact that a lack of insurance can have on the health outcomes and personal finances and the difference health insurance can make in people’s lives.
KFF's Karen Pollitz testimony before the U.S. House Committee on Ways and Means on Jan. 29, 2019 examines the prevalence of pre-existing conditions, the impact of the Affordable Care Act's prohibition against medical underwriting and other provisions aimed at stabilizing the insurance risk pool, and the trade-offs involved in relaxing those provisions.
Employer-sponsored health insurance is the largest source of health coverage for people under 65, covering 165.6 million people in March 2025. This analysis examines who among people under 65 have employer coverage and which workers are offered and eligible for coverage at their jobs, using the Annual Economic and Social (March) Supplements of the Current Population Survey.
Today, 60 million people, including 51 million older adults and 9 million younger adults with disabilities, rely on Medicare for their health insurance coverage, but many Medicare beneficiaries rely on other sources of coverage to supplement their Medicare benefits. This data note explores sources of supplemental coverage among beneficiaries in traditional Medicare, based on data from the 2016 Medicare Current Beneficiary Survey.
While not typically an election issue, Medicaid — particularly the Medicaid expansion created under the Affordable Care Act (ACA) — was an important issue in the 2018 midterm elections in a number of campaigns throughout the country. This fact sheet highlights key states in which the results of the 2018 midterm elections have implications for Medicaid adoption or implementation. States examined include those that had Medicaid expansion ballot initiatives as well as states that have…
On Oct. 25, 2018, KFF released its 18th annual 50-state Medicaid budget survey for state fiscal years 2018 and 2019. KFF and the National Association of Medicaid Directors (NAMD) held a joint briefing to discuss trends in enrollment and spending and highlight key policy developments at a time when the majority of states are focused on quality and outcomes while some are pursing policies that could restrict Medicaid coverage. The survey provides new information and data…
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