How Old was Kennedy When He Became President?
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John F. Kennedy took the oath of President of the United States on January 20, 1961 at the age of 43. He was the youngest President elected to office and the second youngest overall, next to Theodore Roosevelt, who took office at the age of 42 when William McKinley was assassinated.
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U.S. Senate member John F. Kennedy was elected to be President in 1960 at the age of 43. He was the second youngest President of the United States. His life and Presidential term were cut short in 1963 when he was shot by Lee Harvey Oswald.
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