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List of presidents of the United States by age
From Wikipedia, the free encyclopedia
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The first table below charts the age of each president of the United States at the time of their presidential inauguration (first inauguration if elected to multiple and consecutive terms), upon leaving office, and at the time of death. Where the president is still living, their lifespan and post-presidency timespan are calculated through August 22, 2025.
Age of presidents
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Article Two of the United States Constitution provides that U.S. presidents must be at least 35 years old at the time they take office. The median age at inauguration of incoming U.S. presidents is 55 years.[1][2] The youngest person to become U.S. president was Theodore Roosevelt at age 42, who succeeded to the office after the assassination of William McKinley.[1] The oldest person inaugurated president is Donald Trump, at age 78 years, 7 months, for his second, nonconsecutive, term.[3][4]
John F. Kennedy was the youngest person elected as president, at age 43;[5] assassinated at age 46, he was also the youngest president at the end of his tenure, and his lifespan was the shortest of any president.[6] The oldest president at the end of his tenure is Joe Biden at age 82 years, 2 months. Jimmy Carter had the longest lifespan of any president, becoming the first president to reach the age of 100.[7]
James K. Polk had the shortest retirement of any president, dying of cholera only 103 days after leaving office, at age 53,[8] and the youngest to die of natural causes.[9] Carter's retirement at 43 years, 344 days, is the longest in American presidential history. Former president Biden is the oldest of the five living U.S. presidents, age 82 years, 275 days.[2] The youngest living former president is Barack Obama, age 64 years, 18 days.[10]
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Presidential age-related data
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- Birthdate as changed to New Style
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Graphical representation
This is a graphical lifespan timeline of the presidents of the United States. They are listed in order of first assuming office.

The following chart shows presidents by their age (living presidents in green), with the years of their presidency in blue. The vertical black line at 35 years indicates the minimum age to be president.

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