Health care in the United States is provided by many separate legal entities. Health

Health

Health is the level of functional or metabolic efficiency of a living being. In humans, it is the general condition of a person's mind, body and spirit, usually meaning to be free from illness, injury or pain...

 care facilities are largely owned and operated by the private sector

Private sector

In economics, the private sector is that part of the economy, sometimes referred to as the citizen sector, which is run by private individuals or groups, usually as a means of enterprise for profit, and is not controlled by the state...

. Health insurance

Health insurance in the United States

The term health insurance is commonly used in the United States to describe any program that helps pay for medical expenses, whether through privately purchased insurance, social insurance or a non-insurance social welfare program funded by the government...

 is now primarily provided by the government in the public sector, with 60-65% of healthcare provision and spending coming from programs such as Medicare

Medicare (United States)

Medicare is a social insurance program administered by the United States government, providing health insurance coverage to people who are aged 65 and over; to those who are under 65 and are permanently physically disabled or who have a congenital physical disability; or to those who meet other...

, Medicaid

Medicaid

Medicaid is the United States health program for certain people and families with low incomes and resources. It is a means-tested program that is jointly funded by the state and federal governments, and is managed by the states. People served by Medicaid are U.S. citizens or legal permanent...

, TRICARE

TRICARE

TRICARE, formerly known as the Civilian Health and Medical Program of the Uniformed Services , is a health care program of the United States Department of Defense Military Health System. TRICARE provides civilian health benefits for military personnel, military retirees, and their dependents,...

, the Children's Health Insurance Program, and the Veterans Health Administration

Veterans Health Administration

The Veterans Health Administration is the component of the United States Department of Veterans Affairs led by the Under Secretary of Veterans Affairs for Health that implements the medical assistance program of the VA through the administration and operation of numerous VA outpatient clinics,...

.

The U.S. Census Bureau

United States Census Bureau

The United States Census Bureau is the government agency that is responsible for the United States Census. It also gathers other national demographic and economic data...

 reported that a record 50.7 million residents (which includes 9.9 million non-citizens) or 16.7% of the population were uninsured in 2009.