Published: July 23, 2026
The President of the United States is one of the most influential leaders in the world. Since the office was established in 1789, 47 presidencies have shaped the nation's history through wars, economic challenges, scientific achievements, civil rights reforms, and international diplomacy.
This guide provides a chronological overview of every U.S. president, highlighting their time in office and some of the key events that defined their administrations.
What Does the U.S. President Do?
The President serves as:
- Head of State
- Head of Government
- Commander in Chief of the U.S. Armed Forces
- Chief Executive of the federal government
- Leader of U.S. foreign policy
Presidents are elected to four-year terms and, under the 22nd Amendment, may serve a maximum of two elected terms.
Complete List of U.S. Presidents
- George Washington (1789–1797)
- John Adams (1797–1801)
- Thomas Jefferson (1801–1809)
- James Madison (1809–1817)
- James Monroe (1817–1825)
- John Quincy Adams (1825–1829)
- Andrew Jackson (1829–1837)
- Martin Van Buren (1837–1841)
- William Henry Harrison (1841)
- John Tyler (1841–1845)
- James K. Polk (1845–1849)
- Zachary Taylor (1849–1850)
- Millard Fillmore (1850–1853)
- Franklin Pierce (1853–1857)
- James Buchanan (1857–1861)
- Abraham Lincoln (1861–1865)
- Andrew Johnson (1865–1869)
- Ulysses S. Grant (1869–1877)
- Rutherford B. Hayes (1877–1881)
- James A. Garfield (1881)
- Chester A. Arthur (1881–1885)
- Grover Cleveland (1885–1889)
- Benjamin Harrison (1889–1893)
- Grover Cleveland (1893–1897)
- William McKinley (1897–1901)
- Theodore Roosevelt (1901–1909)
- William Howard Taft (1909–1913)
- Woodrow Wilson (1913–1921)
- Warren G. Harding (1921–1923)
- Calvin Coolidge (1923–1929)
- Herbert Hoover (1929–1933)
- Franklin D. Roosevelt (1933–1945)
- Harry S. Truman (1945–1953)
- Dwight D. Eisenhower (1953–1961)
- John F. Kennedy (1961–1963)
- Lyndon B. Johnson (1963–1969)
- Richard Nixon (1969–1974)
- Gerald Ford (1974–1977)
- Jimmy Carter (1977–1981)
- Ronald Reagan (1981–1989)
- George H. W. Bush (1989–1993)
- Bill Clinton (1993–2001)
- George W. Bush (2001–2009)
- Barack Obama (2009–2017)
- Donald Trump (2017–2021)
- Joe Biden (2021–2025)
- Donald Trump (2025–Present)
Five Presidents Who Changed American History
George Washington
As the nation's first president, Washington established many traditions that continue today, including the peaceful transfer of power.
Abraham Lincoln
Lincoln led the United States through the Civil War and issued the Emancipation Proclamation, helping end slavery in the Confederate states.
Franklin D. Roosevelt
Serving longer than any other president, Roosevelt guided the country through the Great Depression and most of World War II.
Ronald Reagan
Reagan oversaw a period of economic change and played a significant role during the final years of the Cold War.
Barack Obama
Obama became the first African American president and enacted major healthcare reforms through the Affordable Care Act.
How Presidents Are Elected
The U.S. presidential election takes place every four years. Citizens vote in each state, and the Electoral College determines the winner. A candidate must receive at least 270 electoral votes to become president.
Frequently Asked Questions
Who was the first U.S. president? George Washington.
Who served the longest? Franklin D. Roosevelt, with more than 12 years in office.
Can a president serve more than two terms? No, except for Franklin D. Roosevelt, who was elected before the two-term constitutional limit was adopted.
Who is the current president? Donald Trump, who began his second, non-consecutive term in January 2025.
Conclusion
Every U.S. president has left a unique mark on American history. Some led during times of peace and prosperity, while others faced wars, economic crises, or social change. Understanding the presidency provides valuable insight into the development of the United States and its role in world affairs.
