| Jacob Hufty | | Democratic-Republican | 1808 | | Incumbent re-elected as a Federalist.Federalist gain. |} New York Ten seats were added after the 1810 census, bringing New York's representation to 27, the largest of any state at the time. New York would remain the state with the most members until surpassed by California in the 1970 census. There were two separate House of Representatives elections in 1812. The first was held in April 1812 for an un-reapportioned 17 representatives. This election was subsequently declared void and a new election was held on December 15–17, 1812, in which only three incumbents ran and two of whom were re-elected. New York thereby lost 4 Democratic-Republicans and gained 14 Federalists. |- ! rowspan=2 | | Ebenezer Sage | | Democratic-Republican | 1810 | Incumbent re-elected.Results of the election were contested but no action was taken by the House. | rowspan=2 nowrap | |- | colspan=3 | None (Second seat created) | | New seat.New member elected.Democratic-Republican gain. |- ! rowspan=2 | | Samuel L. Mitchill | | Democratic-Republican | 1810 | | Incumbent retired.New member elected.Federalist gain. | rowspan=2 nowrap | |- | William Paulding Jr. | | Democratic-Republican | 1810 | | Incumbent retired.New member elected.Federalist gain. |- ! | Pierre Van Cortlandt Jr. | | Democratic-Republican | 1810 | | Incumbent lost re-election.New member elected.Democratic-Republican hold. | nowrap | |- ! | James Emott | | Federalist | 1808 | | Incumbent retired.New member elected.Federalist hold. | nowrap | |- ! rowspan=2 | | Robert L. Livingston | | Federalist | 1808 | | Incumbent resigned May 6, 1812, to accept a commission as a lieutenant colonel.Federalist hold.Successor also elected the same day to finish the term, see above. | rowspan=2 nowrap | |- | Thomas B. Cooke | | Democratic-Republican | 1810 | | Incumbent retired.New member elected.Democratic-Republican loss. |- ! | Asa Fitch | | Federalist | 1810 | | Incumbent retired.New member elected.Democratic-Republican gain. | nowrap | |- ! | Harmanus Bleecker | | Federalist | 1810 | | Incumbent retired.New member elected.Democratic-Republican gain. | nowrap | |- ! | Benjamin Pond | | Democratic-Republican | 1810 | | Incumbent retired.New member elected.Federalist gain. | nowrap | |- ! | Thomas Sammons | | Democratic-Republican | 1808 | | Incumbent retired.New member elected.Federalist gain. | nowrap | |- ! | Silas Stow | | Democratic-Republican |