Senate of the Republic (Mexico)

upper house of the parliament of Mexico
(Redirected from Senate of Mexico)

The Senate of the Republic, (Spanish: Senado de la República) constitutionally Chamber of Senators of the Honorable Congress of the Union (Spanish: Cámara de Senadores del H. Congreso de la Unión), is the upper house of Mexico's bicameral Congress. It currently consists of 128 members, who serve six-year terms.

Senate of the Republic
Senado de la República
LXIV Legislature
Seal of the Senate
FoundedOctober 4, 1824 (1824-10-04)
Mónica Fernández Balboa (MORENA)
Since 1 September 2019
Seats128 members
Senado de México (2018-2024).svg
Political groups
Government (77)

Opposition (51)

Length of term
6 years
AuthorityChapter II of the Constitution of the United Mexican States
Limited voting
Last election
July 1, 2018 (2018-07-01)
La Patria Es Primero
(The Country Is First)
Meeting place
Senado de México 02.jpg
Senate Tribune
Senate Palace
Mexico City
Official Website of the Mexican Senate


After a series of reforms during the 1990s, the Senate is made up of 128 senators:[1]

  • Two for each of the 32 states[a] elected under the principle of relative majority;
  • One for each of the 32 states[a] assigned under the principle of first minority (i.e. awarded to the party who had won the second highest number of votes within the state or Federal District);
  • Thirty-two national senators-at-large, divided among the parties in proportion to their share of the national vote.


  1. 1.0 1.1 The Federal District counts as a state


  1. "Cámara de senadores". IFE.