As of 2017, the youngest US president was Theodore Roosevelt, who was only 42 when he took office.
Kennedy was the youngest elected US president.
Technically John F. Kennedy was elected the youngest but the youngest president in office was Roosevelt. (Roosevelt was elected Vice President in 1900 and became President when President William McKinley was assassinated.)
Thirty eight
bill clinton
Theodore Roosevelt was the Vice President under William McKinley and was the youngest president to hold officer when McKinley was assassinated. John F. Kennedy was youngest president elected to office.
The youngest person to serve as President of the United States was Theodore Roosevelt, who assumed office at the age of 42, following the assasination of William McKinley. John F. Kennedy was the youngest when elected president and youngest who died.
Bill Clinton (46)
Jhon f kennedy is the youngest president till date.
Both the youngest U.S. Vice President, John C. Breckinridge, and the oldest, Alben W. Barkley, were from Kentucky.
he was the first president to be born in the 1900's and he was the youngest
John F. Kennedy was the one.