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The oldest person inaugurated president was Joe Biden, at age 78. Assassinated at age 46, John F. Kennedy was the youngest president at the end of his tenure, and his lifespan was the shortest of any president. At age 50, Theodore Roosevelt was the youngest person to become a former president.
- Joe Biden. Joe Biden, the 46th President of the United States. Joe Biden was 78 when he took the oath of office as the 46th president of the United States in January 2021.
- Ronald Reagan. President Ronald Reagan in 1980 in Los Angeles, California. Born February 6, 1911, the nation’s 40th president was 77 years and 349 days old at the completion of his second term in January 1989.
- Donald Trump. President Donald Trump in his first formal portrait after winning the presidential election, 2016. Born June 14, 1946, Trump was 70 when he won an upset victory in the Electoral College over Hillary Clinton.
- Dwight Eisenhower. President Eisenhower at his desk in the White House, 1956. Born Oct. 14, 1890, the 34th President was 70 years and 98 days old when he left the White House in January 1961.
- Joe Biden (November 20, 1942 – Present) Age at Inauguration: 78 years, 2 months. Year Elected: 2020. Years Served: January 20, 2021 – Present. Political Party: Democratic.
- Donald Trump (June 14, 1946 – Present) Age at Inauguration: 70 years, 7 months, 7 days. Year Elected: 2016. Years Served: January 20, 2017 – January 20, 2021.
- Ronald Reagan (February 6, 1911 – June 5, 2004) Age at Inauguration: 69 years, 11 months, 11 days. Year Elected: 1980. Years Served: January 20, 1981 – January 20, 1989.
- William H. Harrison (February 9, 1773 – April 4, 1841) Age at Inauguration: 68 years, 24 days. Year Elected: 1840. Years Served: March 4, 1841 – April 4, 1841.
Find out the age of each president when they were sworn in as the leader of the country. Joe Biden is the oldest president at 78 years 61 days, while John F. Kennedy is the youngest elected president at 43 years 236 days.
Rank#PresidentAge At Inauguration14678 years 61 days24570 years 220 days34069 years 348 days4968 years 23 daysPeople also ask
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- Jennifer Rosenberg
- Donald J. Trump (70 years, 7 months, 7 days)
- Ronald Reagan (69 years, 11 months, 14 days)
- William H. Harrison (68 years, 0 months, 23 days)
- James Buchanan (65 years, 10 months, 9 days)
Feb 9, 2024 · By Brianna Navarre. |. Feb. 9, 2024, at 2:38 p.m. Save. View as article. Table of Contents. 1 / 14. Credit. The median age for U.S. presidents at inauguration is 55 years old, but several recent...
Nov 20, 2022 · Joe Biden became the first sitting president to reach 80 years old on Sunday, surpassing Donald Trump as the oldest president at the time of election. See the list of the ten oldest presidents in US history and their ages when they took office.
