Current Date: 3 Oct, 2023

Biden turns 80 while serving as President, making history

Sunday will mark President Joe Biden's 80th birthday, making him the first American President still in office to do so. Joe Biden is the oldest President. He entered office at 78 years and 61 days.

Before Biden, Donald Trump was the oldest President in office at the time of his election. The 46th U.S. president and oldest candidate ever elected turned 80 while in office, making him the only sitting president to do so. 

He was elected at the age of 78. For the remainder of his term, Biden's age is now a topic of discussion, particularly in light of the possibility that he could run for office again in 2024.

Nothing in the U.S. Constitution prohibits someone from running for office because they are too old; Article II only specifies a minimum age of 35. According to, presidents are sworn in on average when they are 55 years old.

Who were some of the other senior presidents of the United States? 

These are the ten presidents who were the oldest when they took office.

President Joe Biden


President Joe Biden was sworn in during President Joe Biden and Vice President Kamala Harris's 2021 Presidential Inauguration at the United States Capitol.

Joe Biden, born on 20th November 1942, became the 46th President of the United States in January 2021, ranking him the oldest President in American history.

Biden was 78 when he swore into office, facing harsh criticism from those questioning the impact of age on presidential performance.

Ex-President Donald Trump

On 17th February 2017, President Donald Trump arrived at Palm Beach International Airport in Florida for a weekend at his Mar-a-Lago resort.
Donald J Trump was born on 14th June 1946.


He was 70 years and 220 days old when he was sworn in as the U.S. 45th President in January 2017.

Ex-President Ronald Reagan

Ronald Regan, the 40th president, was 69 years and 348 days old when he was sworn in in 1980. Reagan survived a gunshot assassination attempt during his first term in office in 1981.


He survived a cancerous polyp surgery for his large intestine in 1985.

Ex-President William Henry Harrison

William Henry Harrison was born on 9th February 1773. He was the ninth U.S. President, making him the oldest President at 68 years and 23 days. 


He held the record for 140 years until Reagan took office in 1981.

Ex-President James Buchanan

James Buchanan, nicknamed "Old Buck," is the 15th U.S. President.


When he took office in 1857, Old Buck was 65 years and 315 days old.

Ex=President George Herbert Walker Bush


George H. W. Bush, the 41st United States President, took the oath of office in 1989 at the age of 64 years and 222 days.

Ex-President Zachary Taylor


President Zachary Taylor, nicknamed "Old Rough and Ready," was 64 years and 100 days old at his swearing into office on 4th March 1849 and died in office on 9th July 1850.

Ex-President Dwight Eisenhower

Dwight Eisenhower, born on 14th October 1890, was sworn in as the 34th United States President in 1953 at 62 years and 98 days old.


U.S. President Dwight Eisenhower, center, is seated between Thailand's King Bhumibol Adulyadej, left, and Queen Sirikit for a motorcade drive from National Airport to the White House in Washington on 28th June 1960.

Ex-President John Adams


Second President John Adams, born on 30th October 1735, was 61 years and 125 days old when he defeated Thomas Jefferson in the election of 1796.

Who were the youngest Presidents of the United States?

John F. Kennedy


John F. Kennedy was the youngest President ever elected, at the age of 43 years and 236 days. Theodore Roosevelt was 42 years and 322 days old when he took office following the assassination of William McKinley, the 25th U.S. President.

Excellence Chukwuma Chukwunaedu

Excellence Chukwuma Chukwunaedu

I enjoy marketing, technology and business. I help businesses and brands connect with their ideal customer profiles and build products that excite them and solve their problems.