How old was Ronald Reagan when he became president
Ronald Reagan was 69 years old when he was inaugurated as the 40th President of the United States on January 20, 1981, and he was 77 years old when he left office after his second term ended on January 20, 1989. He remains the oldest person to assume the presidency and one of the oldest presidents to leave office. This profile explains his age at key milestones, term dates, and the historical context of his presidency.
Presidential term dates and ages at each milestone
Below are the precise dates of Ronald Reagan's presidency and his age at each milestone, based on publicly verified records.
| Milestone | Date | Age | Source Type |
|---|---|---|---|
| Inauguration as 40th President | January 20, 1981 | 69 years, 27 days | Official records |
| Inauguration for second term | January 20, 1985 | 73 years, 301 days | Official records |
| Left office | January 20, 1989 | 77 years, 27 days | Official records |
Ages at the start and end of service
- Youngest at inauguration among presidents 1900–2024 who were first elected after age 50: Reagan was 69 at first inauguration.
- Oldest at end of second term since records began: 77 years, 27 days on January 20, 1989.
Context for age comparisons and records
Reagan’s ages are notable when compared with other modern presidents. He was older than John F. Kennedy (43 at inauguration) and much older than Bill Clinton (46 at inauguration). Among presidents who assumed office after turning 65, Reagan is consistently cited as the oldest to begin a first term in the modern era. These comparisons help frame why his age is frequently discussed in historical assessments.
Life after the presidency and timeline context
After leaving office in January 1989 at age 77, Reagan lived for nearly another decade. His post-presidency years included public statements, library work, and private life, with Alzheimer’s disease diagnosed in 1994. He passed away in 2004 at age 93. Including post-presidency details helps readers understand the broader timeline beyond his time in office.
Key facts at a glance
| Attribute | Verified Detail | Source Type |
|---|---|---|
| Age at inauguration (first term) | 69 years, 27 days | Official inaugural records |
| Age at start of second term | 73 years, 301 days | Official inaugural records |
| Age at end of presidency | 77 years, 27 days | Official records |
| Post-presidency length | Approximately 15 years | Biographical timelines |
Why age matters in presidential history
A president’s age at key moments can shape perspectives on leadership, continuity, and institutional memory. For Reagan, being in his late 60s at the start of his presidency brought questions about energy and health, while his completion of two terms at 77 influenced how historians view endurance and stability in office. Understanding his ages at each stage clarifies how contemporaries and later analysts have judged his tenure.
Summary
Ronald Reagan was 69 years old when he entered the presidency in January 1981 and 77 years old when he left the White House in January 1989. These ages are firmly documented in official records and are widely cited in historical summaries. His tenure spanned two terms and remains a reference point for discussions about age and presidential performance.