George Washington

1789-1797 (2 terms)
He didn't belong to any official political party

John Adams

1797-1801
Federalist Party

Thomas Jefferson

1801-1809 (2 terms)
Democratic-Republican Party

James Madison

1809-1817 (2 terms)
Democratic-Republican Party

James Monroe

1817-1825 (2 terms)
Democratic-Republican Party

John Quincy Adams

1825-1829
Federalist Party then Democratic-Republican Party

Andrew Jackson

1829-1837 (2 terms)
Democratic Party

Martin Van Buren

1837-1841
Democratic Party

William Henry Harrison

March 1841-April 1841 (he died in office)
Whig Party

John Tyler

1841-1845 (as Vice President he succeeded to W.H Harrison dead in office after only one month at the presidency and completed his term)
Whig Party, then independent

James K. Polk

1845-1849
Democratic Party

Zachary Taylor

1849-1850 (he died in office)
Whig Party

Millard Fillmore

1850-1853 (as Vice-President he succeeded to Z.Taylor who died in office and completed his term)
Whig Party

Franklin Pierce

1853-1857
Democratic Party

James Buchanan

1857-1861
Democratic Party

Abraham Lincoln

1861-1865 (he died, assassinated at the beginning of his second term)
Republican Party and The National Union Party

Andrew Johnson

1865-1869 (as Vice President of Lincoln he completed his term after his assassination)
Democratic Party, the National Union Party and then he became independent

Ulysses S. Grant

1869-1877 (2 terms)
Republican Party

Rutherford B. Hayes

1877-1881
Republican Party

James A. Garfield

March 1881-September 1881 (he died on office)
Republican Party

Chester A. Arthur

1881-1885 (as Vice President of Garfield he completed his term after he died)
Republican Party

Grover Cleveland

1885-1889 and 1893-1897
Democratic Party

Benjamin Harrison

1889-1893
Republican Party

William McKinley

1897-september 1901 (he died in office at the beginning of his second term)
Republican Party

Theodore Roosevelt

1901-1909 (as Vice President of McKinley he completed his term when he died then was re-elected in 1904)
Republican Party

William Howard Taft

1909-1913
Republican Party

Woodrow Wilson

1913-1921
Democratic Party

Warren G. Harding

1921-1923 (he died in office)
Republican Party

Calvin Coolidge

1923-1929 (as Vice President of Harding he completed his term when he died and was re-elected in 1924)
Republican Party

Franklin D. Roosevelt

1933-1945 (he died in office during at the beginning of his fourth term)
Democratic Party

Harry S. Truman

1945-1953 (as Vice President of F.D. Roosevelt he completed his term when he died and was re-elected in 1948)
Democratic Party

Dwight D. Eisenhower

1953-1961 (2 terms)
Republican Party

John F. Kennedy

1961-1963 (he died in office, assassinated)
Democratic Party

Lyndon B. Johnson

1963-1969 (as Vice President of Kennedy he completed his term after he died and was re-elected in 1964)
Democratic Party

Richard Nixon

1969-1974 (forced to resign because of the Watergate scandal at the beginning of his second term)
Republican Party

Gerard Ford

1974-1977 (as Vice President of Nixon he completed his term when he was forced to resign)
Republican Party

Jimmy Carter

1977-1981
Democratic Party

Ronald Reagan

1981-1989 (2 terms)
Republican Party

George H. W. Bush

1989-1993
Republican Party

Bill Clinton

1993-2001 (2 terms)
Democratic Party

George W. Bush

2001-2009 (2 terms)
Republican Party

Barack Obama

2009-today (2 terms)
Democratic Party

Herbert Hoover

1929-1933
Republican Party