List of United States presidents by age at ascension to office

From Wikipedia, the free encyclopedia

In 1981, aged 69, Ronald Reagan became the oldest man to assume the US presidency.
In 1981, aged 69, Ronald Reagan became the oldest man to assume the US presidency.
In 1901, aged 42, Theodore Roosevelt became the youngest man to assume the US presidency.
In 1901, aged 42, Theodore Roosevelt became the youngest man to assume the US presidency.

This is a list of United States presidents' ages at the time they assumed – not were elected to – the Presidency. For Presidents who served two or more consecutive terms, the age at the start of the first term is given. The median age for a President to assume office is 55 years, 2 months, and 26 days.

OO = Order of Office    Y = Years    M = Months    D = Days    R = Rank
OO Name Y M D Term began Term ended R
40 Ronald Reagan 69 11 14 January 20, 1981 January 20, 1989 1
9 William Harrison 68 0 23 March 4, 1841 April 4, 1841 2
15 James Buchanan 65 10 9 March 4, 1857 March 4, 1861 3
41 George H. W. Bush 64 7 8 January 20, 1989 January 20, 1993 4
12 Zachary Taylor 64 3 8 March 4, 1849 July 9, 1850 5
34 Dwight D. Eisenhower 62 3 6 January 20, 1953 January 20, 1961 6
7 Andrew Jackson 61 11 17 March 4, 1829 March 4, 1837 7
2 John Adams 61 4 4 March 4, 1797 March 4, 1801 8
38 Gerald Ford 61 0 26 August 9, 1974 January 20, 1977 9
33 Harry S. Truman 60 11 4 April 12, 1945 January 20, 1953 10
5 James Monroe 58 10 4 March 4, 1817 March 4, 1825 11
4 James Madison 57 11 16 March 4, 1809 March 4, 1817 12
3 Thomas Jefferson 57 10 19 March 4, 1801 March 4, 1809 13
6 John Quincy Adams 57 7 21 March 4, 1825 March 4, 1829 14
1 George Washington 57 2 8 April 30, 1789 March 4, 1797 15
17 Andrew Johnson 56 3 17 April 15, 1865 March 4, 1869 16
28 Woodrow Wilson 56 2 4 March 4, 1913 March 4, 1921 17
37 Richard Nixon 56 0 11 January 20, 1969 August 9, 1974 18
24 Grover Cleveland[1] 55 11 14 March 4, 1893 March 4, 1897 19
23 Benjamin Harrison 55 6 12 March 4, 1889 March 4, 1893 20
29 Warren Harding 55 4 2 March 4, 1921 August 2, 1923 21
36 Lyndon B. Johnson 55 2 26 November 22, 1963 January 20, 1969 22
31 Herbert Hoover 54 6 22 March 4, 1929 March 4, 1933 23
43 George W. Bush 54 6 14 January 20, 2001 incumbent 24
19 Rutherford B. Hayes 54 5 0 March 4, 1877 March 4, 1881 25
8 Martin Van Buren 54 2 27 March 4, 1837 March 4, 1841 26
25 William McKinley 54 1 4 March 4, 1897 September 14, 1901 27
39 Jimmy Carter 52 3 19 January 20, 1977 January 20, 1981 28
16 Abraham Lincoln 52 0 20 March 4, 1861 April 15, 1865 29
21 Chester A. Arthur 51 11 14 September 19, 1881 March 4, 1885 30
27 William Howard Taft 51 5 17 March 4, 1909 March 4, 1913 31
32 Franklin D. Roosevelt 51 1 4 March 4, 1933 April 12, 1945 32
30 Calvin Coolidge 51 0 29 August 2, 1923 March 4, 1929 33
10 John Tyler 51 0 6 April 4, 1841 March 4, 1845 34
13 Millard Fillmore 50 6 2 July 9, 1850 March 4, 1853 35
11 James Polk 49 4 2 March 4, 1845 March 4, 1849 36
20 James Garfield 49 3 13 March 4, 1881 September 19, 1881 37
14 Franklin Pierce 48 3 9 March 4, 1853 March 4, 1857 38
22 Grover Cleveland[1] 47 11 14 March 4, 1885 March 4, 1889 39
18 Ulysses S. Grant 46 10 5 March 4, 1869 March 4, 1877 40
42 Bill Clinton 46 5 1 January 20, 1993 January 20, 2001 41
35 John F. Kennedy[2] 43 7 22 January 20, 1961 November 22, 1963 42
26 Theodore Roosevelt[2] 42 10 18 September 14, 1901 March 4, 1909 43

  1. ^ a b Grover Cleveland served two non-consecutive terms, so his age at the start of each is shown.
  2. ^ a b John F. Kennedy remains the youngest man to be elected President, as Theodore Roosevelt, although aged 42 when he assumed the Presidency, was not elected President until the age of 46.

The largest age gap between an incoming and outgoing President

v • d • e
Lists of Presidents and Vice Presidents of the United States
Presidential lists by order Order of service · Age at ascension · Birth · Death · Earliest Living · Longevity · Historical rankings · Military rank · Number Living · Oldest · Post-presidency length · Time in office
Presidents' personal lives Nicknames, name origins & first, middle and last names · Genealogical relationship · College education · Military service · Pets · Place of birth · Place of primary affiliation · Previous occupation · Religious affiliation · Residences · Children
Presidents' professional lives Political affiliation · Political occupation · Inaugurations · Doctrines · Pardons · Vetoes · Control of Congress · Assassination attempts · Currency appearances · Libraries
Vice Presidential lists Order of service · Time in office · Birth · Tie-breaking votes · Longevity · Vacancies
Succession Line of succession · Designated survivor
Elections Electoral College margin · 2000 Electors · 2004 Electors
Candidates Democratic tickets · Republican tickets · Height · Lost their home state · Former presidents who ran again
Unsuccessful candidates Received at least one electoral vote
Fictional Fictional Presidents · Fictional Vice Presidents · Fictional Presidential candidates · Fictional presidential succession
Ladies First Ladies · First Ladies by longevity · Second Ladies
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