List of special elections to the United States House of Representatives in New York List 21th-present

| District | Con_gress | Date_ | Predecessor | Winner |
|---|---|---|---|---|
| New York 20th | 28th | December 2, 1844 | Samuel Beardsley ( D ) | Levi D. Carpenter ( D ) |
| New York 12th | 29th | December 7, 1846 | Richard P. Herrick ( W ) | Thomas C. Ripley ( W ) |
| New York 6th | 30th | November 7, 1848 | David S. Jackson ( D ) | Horace Greeley ( W ) |
| New York 27th | 30th | December 4, 1848 | John M. Holley ( W ) | Esbon Blackmar ( W ) |
| New York 12th | 33rd | December 4, 1854 | Gilbert Dean ( D ) | Isaac Teller ( W ) |
| New York 29th | 33rd | December 5, 1853 | Azariah Boody ( W ) | Davis Carpenter ( W ) |