The 1822–23 United States House of Representatives elections were held on various dates in various states between July 1, 1822 and August 14, 1823. Each state set its own date for its elections to the House of Representatives before the first session of the 18th United States Congress convened on December 1, 1823. They occurred during President James Monroe's second term. Following the congressional reapportionment based on the 1820 United States Census, the House increased by 26 seats to a total of 213. Most relative population growth was in the West. This was the last House election during the virtually nonpartisan Era of Good Feelings and the largest midterm gain of seats by a President's party. The Democratic-Republican Party remained nationally dominant, and the Federalist Party limited to state and local influence. This election heralded key change not apparent until the end of the 18th Congress. The four-way 1824 presidential election, in which all candidates ran as Democratic-Republicans, would result in no candidate winning an Electoral College majority. Representatives elected to the 18th Congress are often classified by how they voted in the 1825 contingent election, which after a controversial, unanticipated political deal chose John Quincy Adams President, triggering a new, rancorous, abruptly realigned period of partisanship. This election marked the second time in American history where the incumbent president's party gained House seats in a midterm election while still losing seats in the Senate, this happened before in 1814 and again in 1902. Election summaries Following the 1820 Census, 26 new seats were apportioned, with 4 States losing 1 seat each, 9 States gaining between 1 and 8 seats, and the remaining 11 States having no change in apportionment. Special elections There were special elections in 1822 and 1823 to the 17th United States Congress and 18th United States Congress. Special elections are sorted by date then district. 17th Congress |- ! | Solomon Van Rensselaer | | Federalist | 1818 | | Incumbent resigned January 14, 1822.New member elected February 25–27, 1822.Federalist hold.Successor seated March 12, 1822.Successor later elected to the next term in , see below. | nowrap | |- ! | Caesar A. Rodney | | Democratic-Republican | 18021804 1820 | | Incumbent resigned January 24, 1822 when elected U.S. Senator.New member elected October 1, 1822.Federalist gain.Successor seated December 2, 1822.Successor retired when the seat was eliminated. | nowrap | |- ! | William Milnor |