When it comes to age and the presidency, the vast majority of US presidents were over 50 when they first became president. Barack Obama was 47 when he first entered the White House.
The other thing to note is that US presidents have to be over the age of 35 when they become president, as required by the country’s constitution.
Donald Trump became president at the age of 70 in contrast to Emmanuel Macron who became French president aged 39.
Here are the seven oldest US presidents ranked by the age at which they first took office.
7th oldest US president – Dwight Eisenhower
This Republican was first elected in 1952 and served in the top job for two whole terms. His vice president Richard Nixon went on to win two elections, but not for another eight years after Eisenhower’s term ended.
Eisenhower was 62 years old when he first became president, ending his second term just 98 days after his 70th birthday.
6th oldest US president – Zachary Taylor
Born in 1784, Taylor is only the third oldest president to have been born in the 18th century and served in the 19th century. Taylor was the Whig candidate in the 1848 election and won the vote at the age of 64 years of age.
However, Taylor did not serve a full term, dying just over a year into his presidency. He was succeeded by Millard Fillmore in 1850.
5th – George H. W. Bush
This one term Republican president served in the top job from 1989 to 1993, losing out to Democrat Bill Clinton in 1992. He entered office at the age of 64, and is still alive and kicking today at the ripe old age of 93.
4th – James Buchanan
Born in 1791, this Democratic president served between 1857 and 1861 having beaten Republican John C. Fremont in the 1856 election.
Buchanan, a former Secretary of State, was aged 65 years when he became president. He did not seek re-election in the 1860 presidential vote.
3rd – William H. Harrison
Harrison comes third in this list, but tops the list for the being the shortest-serving US president in history.
At the time of becoming president in 1841, Harrison was 68 years old. In the 1840 election, this Whig saw off Martin Van Buren to become president, only to die just a month into his first and only term
2nd – Ronald Reagan
Ronald Reagan is known for his low-tax, small-state agenda, and came to power on the Republican ticket at the age of 69 following the 1980 election.
Although he does not top this list, he tops the list for being the oldest president to leave office having finished his second term at the age of 77.
The OLDEST President of the United States of American at the time of taking office is… Donald Trump
Donald Trump’s election made history for so many reasons, not least his being 70 when he became president, the only American to have done just that.
The question now is, how long will he last? Will he leave office at the age of 78, beating Ronald Reagan, or will he be booted out in 2020 – or even before then?
This list is based off data from the Wikipedia page containing the US presidents by age.