The 1866–67 United States House of Representatives elections were held on various dates in various states between June 4, 1866, and September 6, 1867. They occurred during President Andrew Johnson's term just one year after the American Civil War ended when the Union defeated the Confederacy. Each state set its own date for its elections to the House of Representatives. Members were elected before or after the first session of the 40th United States Congress convened on March 4, 1867, including the at-large seat from the new state of Nebraska. Ten secessionist states still had not yet been readmitted, and therefore were not seated.