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List of all U.S. Presidents in order, the years they were in office, and their respective parties.
1 George Washington (1789-97)
2 John Adams, 1797-1801 (Federalist)
3 Thomas Jefferson, 1801-9 (Democratic-Republican)
4 James Madison, 1809-17 (Democratic-Republican)
5 James Monroe, 1817-25 (Democratic-Republican)
6 John Quincy Adams, 1825-29 (Democratic-Republican)
7 Andrew Jackson, 1829-37
8 Martin Van Buren, 1837-41 (Democrat)
9 William Henry Harrison, 1841 (Whig)
10 John Tyler 1841-45 (Whig)
11 James Knox Polk, 1845-49 (Democrat)
12 Zachary Taylor, 1849-50 (Whig)
13 Millard Fillmore, 1850-53 (Whig)
14 Franklin Pierce, 1853-57 (Democrat)
15 James Buchanan, 1857-61 (Democrat)
16 Abraham Lincoln, 1861-65 (Republican)
17 Andrew Johnson, 1865-69 (Democrat/National Union)
18 Ulysses Simpson Grant, 1869-77 (Republican)
19 Rutherford Birchard Hayes, 1877-81 (Republican)
20 James Abram Garfield, 1881 (Republican)
21 Chester Alan Arthur, 1881-85 (Republican)
22 Grover Cleveland, 1885-89 (Democrat)
23 Benjamin Harrison, 1889-93 (Republican)
24 Grover Cleveland, 1893-97 (Democrat)
25 William McKinley, 1897-1901 (Republican)
26 Theodore Roosevelt, 1901-9 (Republican)
27 William Howard Taft, 1909-13 (Republican)
28 Woodrow Wilson, 1913-21 (Democrat)
29 Warren Gamaliel Harding, 1921-23 (Republican)
30 Calvin Coolidge 1923-29 (Republican)
31 Herbert Clark Hoover, 1929-33 (Republican)
32 Franklin Delano Roosevelt, 1933-45 (Democrat)
33 Harry S Truman, 1945-53 (Democrat)
34 Dwight David Eisenhower, 1953-61 (Republican)
35 John Fitzgerald Kennedy, 1961-63 (Democrat)
36 Lyndon Baines Johnson, 1963-69 (Democrat)
37 Richard Milhous Nixon, 1969-74 (Republican)
38 Gerald Rudolph Ford Jr , 1974-77 (Republican)
39 James Earl Carter, 1977-81 (Democrat)
40 Ronald Wilson Reagan, 1981-89 (Republican)
41 George Herbert Walker Bush, 1989-1993 (Republican)
42 William Jefferson Clinton, 1993-2001(Democrat)
43 George Walker Bush, 2001-2009 (Republican)
44 Barack Hussein Obama, 2009- ? (Democrat)
01 Washington, George (1789-1797)
02 Adams, John (1797-1801)
03 Jefferson, Thomas (1801-1809)
04 Madison, James (1809-1817)
05 Monroe, James (1817-1825)
06 Adams, John Quincy (1825-1829)
07 Jackson, Andrew (1829-1837)
08 Van Buren, Martin (1837-1841)
09 Harrison, William Henry (1841)
10 Tyler, John (1841-1845)
11 Polk, James Knox (1845-1849)
12 Taylor, Zachary (1849-1850)
13 Fillmore, Millard (1850-1853)
14 Pierce, Franklin (1853-1857)
15 Buchanan, James (1857-1861)
16 Lincoln, Abraham (1861-1865)
17 Johnson, Andrew (1865-1869)
18 Grant, Ulysses S. (1869-1877)
19 Hayes, Rutherford Birchard (1877-1881)
20 Garfield, James Abram (1881)
21 Arthur, Chester Alan (1881-1885)
22 Cleveland, Grover (1885-1889)
23 Harrison, Benjamin (1889-1893)
24 Cleveland, Grover (1893-1897)
25 McKinley, William (1897-1901)
26 Roosevelt, Theodore (1901-1909)
27 Taft, William Howard (1909-1913)
28 Wilson, Woodrow (1913-1921)
29 Harding, Warren Gamaliel (1921-1923)
30 Coolidge, Calvin (1923-1929)
31 Hoover, Herbert Clark (1929-1933)
32 Roosevelt, Franklin Delano (1933-1945)
33 Truman, Harry (1945-1953)
34 Eisenhower, Dwight David (1953-1961)
35 Kennedy, John Fitzgerald (1961-1963)
36 Johnson, Lyndon Baines (1963-1969)
37 Nixon, Richard Milhous (1969-1974)
38 Ford, Gerald Rudolph (1974-1977)
39 Carter, James Earl Jr. (1977-1981
40 Reagan, Ronald Wilson (1981-1989)
41 Bush, George Herbert Walker (1989-1993)
42 Clinton, William Jefferson (1993-2001)
43 Bush, George Walker (2001-2009]
44 Obama, Barack [2009-?]