to have been left vacant for the remainder of the Congress.Federalist loss. | nowrap | |- ! | Felix Grundy | | Democratic-Republican | 1811 | | Incumbent resigned in 1814.New member elected September 15–16, 1814.Democratic-Republican hold.Successor later re-elected to the next term, see below.Successor seated October 15, 1814. | nowrap | |- ! | Jacob Hufty | | Federalist | 1808 | | Incumbent died May 20, 1814.New member elected October 10–11, 1814.Democratic-Republican gain.By the time of the special election the legislature had reinstated at-large elections. This was the second of three cases when the special election was held on a different basis than the general election.Successor was not a candidate that same day for election to the next term, see below.Successor seated November 2, 1814. | nowrap | |- ! | Edward Hempstead | | Democratic-Republican | 1812 | Incumbent served until September 17, 1814.New delegate elected September 17, 1814.Successor also elected to the next term, see below.Successor seated November 16, 1814. | nowrap | |- ! | Reasin Beall | | Democratic-Republican | 1813 | | Incumbent resigned June 7, 1814.New member elected.Democratic-Republican hold.New member elected October 11, 1814.Successor also elected the same day to the next term, see below.Successor seated December 22, 1814. | nowrap | |- ! | Jonathan Roberts | | Democratic-Republican | 1810 | | Incumbent resigned February 24, 1814, when elected U.S. Senator.New member elected October 11, 1814.Federalist gain.Successor lost election, the same day, to the next term, see below.Successor seated November 29, 1814. | nowrap | |- ! | James Whitehill | | Democratic-Republican | 1812 | | Incumbent resigned September 1, 1814, to engage in mercantile pursuits.New member elected October 12, 1814.Federalist gain.Successor elected, the next day, to the next term, see below.Successor seated December 12, 1814. | nowrap | |} 14th Congress |- ! | Daniel A. White | | Federalist | 1814 | | Member-elect declined the seat to become Probate Judge in Essex County.New member elected July 17, 1815.Federalist hold.Successor seated December 4, 1815. | nowrap | |- ! | Jonathan Fisk | | Democratic-Republican | 18081810 1812 | | Incumbent resigned in March 1815 when appointed U.S. Attorney for the Southern District of New York.New member elected in April 1815.Democratic-Republican hold.Successor seated December 4, 1815. | nowrap | |- ! | Benjamin Pond | | Democratic-Republican | 1810 | | Incumbent died October 14, 1814.New member