By Vivek Dubey

CNBC-TV18.com

Published Feb 26, 2024

US leadership: The 10 oldest presidents in history

Joe Biden is the only US president to serve over 80. If he wins a second term, he will be 82 when he takes office and 86 when his term ends.

John Adams

61 years,  125 days

Andrew Jackson

61 years, 354 days

Dwight D. Eisenhower

62 years, 98 days

Zachary Taylor

64 years, 100 days

George H. W. Bush

64 years, 222 days

James Buchanan

65 years, 315 days

William Henry Harrison

68 years, 23 days

Ronald Reagan

69 years, 348 days

Donald J. Trump

70 years, 220 days

Joe Biden

78 years, 61 days