1872–73 United States House of Representatives elections

The 1872–73 United States House of Representatives elections were held on various dates in various states between June 4, 1872, and April 7, 1873. Each state set its own date for its elections to the House of Representatives before the first session of the 43rd United States Congress convened on December 1, 1873. They coincided with the re-election of United States President Ulysses S. Grant. The congressional reapportionment based on the 1870 United States census increased the number of House seats to 292.

Grant's Republican Party increased its majority greatly, partly at the expense of the opposition Democratic Party and partly by adding 49 new seats to the House. The proindustry outlook of the Republicans appealed to many Northern voters, especially as the post-war economy exploded, and this allowed the party to flourish as the Industrial Revolution grew more widespread. The Republicans also benefited from a continuing association with victory in the American Civil War, as well as disarray amongst Democratic leadership.

Election summaries

Following the 1870 census, the House was reapportioned, initially adding 40 seats, followed by a subsequent amendment to the apportionment act adding another seat to 9 states, resulting in a total increase of 49 seats. No states lost seats, 10 states had no change, 13 states gained 1 seat each, 9 states gained 2 seats, 3 states gained 3 seats, 1 state gained 4 seats, and 1 state gained 5 seats. Prior to the supplemental act, two states (New Hampshire and Vermont) had each lost 1 seat.