Template:Polk cabinet
| Vice President | George M. Dallas (1845–1849) |  |
|---|---|---|
| Secretary of State | James Buchanan (1845–1849) | |
| Secretary of the Treasury | Robert J. Walker (1845–1849) | |
| Secretary of War | William L. Marcy (1845–1849) | |
| Attorney General | ||
| Postmaster General | Cave Johnson (1845–1849) | |
| Secretary of the Navy | George Bancroft (1845–1846) • John Y. Mason (1846–1849) | |