The longest-living presidents: Ronald Reagan, John Adams among those living past 90

Jimmy Carter is the oldest living president.

In October, he'll turn 100. No other president has lived past 94, but he's one of six to live until at least 90.

Here are the longest-living presidents of all time:

Jimmy Carter

Jimmy Carter, the 39th president of the United States, was born Oct. 1, 1924, which makes him 99 years old.

George H.W. Bush

George H.W. Bush, the 41st president of the United States, was born Jun 12, 1924, and died Nov. 30, 2018. He was 94, 171 days.

Gerald Ford

Gerald Ford, the 38th president of the United States, was born July 14, 1913, and died Dec. 26, 2006. He was 93 years, 165 days.

Ronald Reagan

Ronald Reagan, the 40th president of the United States, was born Fe.b 6, 1911, and died June 5, 2004. He was 93 years, 120 days.

John Adams

John Adams, the second president of the United States, was born Oct. 30, 1735, and died July 4, 1826. He was 90 years, 247 days.

Herbert Hoover

Herbert Hoover, the 31st president of the United States, was born Aug. 10, 1874, and died Oct. 20, 1964. He was 90 years, 71 days.

This article originally appeared on Asbury Park Press: Is Jimmy Carter still alive? Yes, He's the oldest living president