explainer
At 78 years and 7 months old, Donald Trump will be the oldest president in U.S. history on Inauguration Day.
Donald Trump is scheduled to be sworn in as the 47th president of the United States on Monday.
At 78, he begins his second term as president, making him the oldest person ever to hold office. He will be five months older than Joe Biden, who previously held the record for oldest president on Inauguration Day in 2021.
In the following description, Al Jazeera visualizes the ages of all US presidents on Inauguration Day, as well as their lifespans and years in office.
Oldest US President and Youngest US President
Donald J. Trump was born in Queens, New York on June 14, 1946, less than a year after the end of World War II.
In 2017, Mr. Trump was inaugurated as the 45th President of the United States at the age of 70, making him the oldest president to hold office, surpassing Ronald Reagan, who was approaching 70 on Inauguration Day in 1981.
The average age of U.S. presidents at the time of their inauguration is 57 years old, and this has been the case since the first president, George Washington, in 1789, when he was 57 years old.
The youngest U.S. president at the time was Theodore Roosevelt, who became president at the age of 42 after the assassination of William McKinley in 1901.
longest living american president
The longest-living US president was Jimmy Carter, who passed away on December 29, 2024 at the age of 100. After serving one term as president from 1977 to 1981, he lived for 43 years, longer than any other president.
Of the 41 presidents who have died, six lived to be 90 or older, five lived to be between 80 and 90, and the average age of death was 72.
The 35th president, John F. Kennedy, was the shortest-lived American president. He was assassinated in 1963 at the age of 46.
longest serving US president
Prior to 1951, there were no formal limits on the term of office of the U.S. president. The two-term limit was formalized by the 22nd Amendment to the Constitution, ratified on February 27, 1951, primarily in response to Franklin D. Roosevelt’s four-term term.
The longest-serving U.S. president, Roosevelt served from 1933 to 1945, completing his fourth term for more than 12 years before dying at age 63.
Most U.S. presidents serve one term instead of two. Out of 46 presidents, only 15 have served more than one term.
The shortest-serving president was William Henry Harrison, who died on April 4, 1841, just one month into his term.