Four U.S. presidents have been assassinated while serving in office: Abraham Lincoln (1865), James A. Garfield (1881), William McKinley (1901), and John F. Kennedy (1963). This verified count reflects completed attacks where the president died from injuries received while holding the office of president. A fifth attempt—Herbert Hoover in 1932—did not result in injury, and several other presidents faced threats or survived assassination attempts. The following breakdown confirms dates, circumstances, and lasting impacts of each verified fatality.
Confirmed Presidential Assassinations in U.S. History
Lincoln, Garfield, McKinley, and Kennedy: Key Facts
Each of the four confirmed assassinations occurred in a different era and had distinct political and security consequences. Lincoln was shot at Ford’s Theatre in Washington, D.C., by John Wilkes Booth and died the following morning. Garfield was shot at the Baltimore and Potomac Railroad Station and lingered for 79 days before dying from infections. McKinley was shot at the Temple of Music in Buffalo and died eight days later after gangrene developed. Kennedy was shot in Dallas while riding in a motorcade and was pronounced dead shortly after arrival at Parkland Hospital. These verified events are documented by official records, congressional reports, and historical consensus.
| President | Date | Location | Outcome | Key Context |
|---|---|---|---|---|
| Abraham Lincoln | April 14, 1865 (died April 15) | Ford’s Theatre, Washington, D.C. | Death | Shot by John Wilkes Booth; Civil War nearing end |
| James A. Garfield | July 2, 1881 (died September 19) | Baltimore and Potomac Railroad Station, Washington, D.C. | Death | Shot by Charles Guiteau; led to civil service reforms |
| William McKinley | September 6, 1901 (died September 14) | Temple of Music, Buffalo, New York | Death | Shot by Leon Czolgosz; prompted modern presidential security measures |
| John F. Kennedy | November 22, 1963 (died same day) | Dealey Plaza, Dallas, Texas | Death | Shot by Lee Harvey Oswald; major impact on Secret Service protocols |
Attempts That Did Not Result in Death
Several incidents involved shots fired at presidents or dangerous close calls that did not result in a confirmed assassination. For example, an estimated 30+ recorded attempts and plots targeted presidents or former presidents, but this article focuses on verified fatalities. A non-exhaustive contrast distinguishes completed assassinations from notable attempts that ended without death.
- Herbert Hoover (1932): A man attacked the president-elect with a pickaxe in Miami; Hoover was unharmed.
- Gerald Ford (1975): Two separate assassination attempts occurred in one day; both missed, and Ford was unharmed.
- Ronald Reagan (1981): Was shot but survived after prompt medical treatment.
- Other presidents, including Andrew Jackson, Theodore Roosevelt, Harry Truman, and others, faced threats or had incidents that did not result in completed assassinations.
How the U.S. Government Defines an Assassination
In official and historical usage, an assassination of a president refers to a successful attack that results in the president’s death while in office or as a result of the attack. Death must occur while holding the office or as a direct proximate result of the attack. Attempts that do not cause death are generally recorded as assassination attempts or plots, but they are not counted as completed assassinations. The Secret Service, National Archives, and congressional research services use these distinctions when documenting incidents.
Historical and Security Legacy
The assassinations of Lincoln, Garfield, McKinley, and Kennedy prompted major shifts in presidential protection. Lincoln’s death led to the first congressional discussion of presidential security. Garfield’s suffering and death highlighted the need for better medical practices and executive protection, influencing the eventual creation of the Secret Service’s protective mission. McKinley’s death directly led to the formal assignment of Secret Service protection to living former presidents and their families. Kennedy’s assassination accelerated legislation and executive actions on security, travel, and records, and it prompted long-term reforms in how the government investigates and responds to threats.
Distinguishing Assassination from Other Causes of Death
Presidents have died from natural causes, illness, accidents, and combat-related events, but only four deaths meet the historical and factual threshold of assassination while in office. Natural causes, wartime deaths, and deaths shortly after leaving office—such as those from medical complications or accidents—do not count as assassinations. For example, William Henry Harrison, Zachary Taylor, Warren G. Harding, and others died of illness or other non-violent causes while or after in office, and are not classified as assassinations.
Why the Number Four Is Stable in Historical Records
Since the establishment of the presidency, four assassinations are consistently documented by authoritative sources, including the National Archives, the Secret Service, and major historical institutions. Attempts and threats are regularly evaluated and updated, but the completed assassinations remain fixed at four. Some states and organizations track additional plots for research and security planning, but the core historical record does not change. This consistency supports the reliability of the number four for long-term understanding and public education.