The 43rd United States Congress was a meeting of the legislative branch of the United States federal government, consisting of the United States Senate and the United States House of Representatives. It met in Washington, D.C. from March 4, 1873, to March 4, 1875, during the fifth and sixth years of Ulysses S. Grant's presidency.
The apportionment of seats in the House of Representatives was based on the 1870 United States census.
Both chambers had a Republican majority. This is the last time Republicans held a 2/3 majority in the Senate.
The count below identifies party affiliations at the beginning of the first session of this Congress, and includes members from vacancies and newly admitted states, when they were first seated. Changes resulting from subsequent replacements are shown below in the "Changes in membership" section.
Before this Congress, the 1870 United States Census and resulting reapportionment changed the size of the House to 292 members.
This list is arranged by chamber, then by state. Senators are listed by class and Members of the House by district.
Senators were elected by the state legislatures every two years, with one-third beginning new six-year terms with each Congress. Preceding the names in the list below are Senate class numbers, which indicate the cycle of their election. In this Congress, class 1 meant their term ended with this Congress, facing re-election in 1874; class 2 meant their term began in the last Congress, facing re-election in 1876; and class 3 meant their term began in this Congress, facing re-election in 1878.
The names of members of the House of Representatives are preceded by their district numbers.
The count below reflects changes from the beginning of the first session of this Congress.
Lists of committees and their party leaders for members of the House and Senate committees can be found through the Official Congressional Directory at the bottom of this article. The directory after the pages of terms of service lists committees of the Senate, House (Standing with Subcommittees, Select and Special) and Joint and, after that, House/Senate committee assignments. On the committees section of the House and Senate in the Official Congressional Directory, the committee's members on the first row on the left side shows the chairman of the committee and on the right side shows the ranking member of the committee.