Donald Trump reached 80 years old on June 14, 2026, making him the oldest president serving in a second term in American history. Trump was 78 years and 7 months old when he took the oath of office on January 20, 2025, becoming the oldest person ever inaugurated as president, and he continues to hold that distinction as he serves his second nonconsecutive term.
Trump’s age milestone surpasses the previous record held by Ronald Reagan, who left office at 77 years and 349 days old after completing his second term in January 1989. According to Wikipedia, Reagan was 73 when he was elected to his second term in 1984, making him the oldest man elected to the presidency at that time.
At the end of his second term on January 20, 2029, Trump is expected to be 82 years, 7 months, and 6 days old, according to Wikipedia’s age and health concerns article. This would make him the oldest person to have held the office overall. Trump was the oldest person elected to the presidency in 2024, surpassing Biden’s previous record of being the oldest person elected when he won in 2020 at 78 years and 2 months old, per Statista.
Trump’s second term began less than six months after he turned 78, making his current status as an 80-year-old sitting president part of an expanding cohort of aging world leaders. According to Pew Research Center, as of June 2026, only 16 of 186 national leaders worldwide are older than Trump, with a median leader age of 63.
Sources
- Wikipedia — Age and health concerns about Donald Trump; List of presidents of the United States by age
- Statista — Age of U.S. Presidents when taking office 2025
- Pew Research Center — As Trump turns 80, who are the oldest and youngest world leaders
- History.com — The 8 Oldest Presidents in History
