At stake in this election:

• 102 seats in the Senate of Colombia.

Description of government structure:

• Chief of State: President Juan Manuel SANTOS Calderon
• Head of Government: President Juan Manuel SANTOS Calderon
• Assembly: Colombia has a bicameral Congress (Congreso) consisting of the Senate (Senado) with 102 seats and the House of Representatives (Camara de Representantes) with 166 seats.

Description of electoral system:

• In the Senate (Senado) 102 members are elected through a party-list proportional representation system to serve 4-year terms. Parties are allowed to choose between closed and open lists. Most lists are open. There is 1 multi-member national constituency with 100 seats and 1 multi-member special national constituency for indigenous (Indian) communities with 2 seats. In the House of Representatives, 163 members are elected through proportional representation. An additional two seats are chosen by Afro-Colombians and one by indigenous Colombians. 

Main parties in the electoral race:

• Party: Social Party of National Unity / Partido Social de Unidad Nacional (Party of the U / Partido de «la U»)
  • Leader: Aurelio IRAGORRI Valencia
• Party: Colombian Conservative Party / Partido Conservador Colombiano
  • Leader: Hernán ANDRADE Serrano
• Party: Colombian Liberal Party / Partido Liberal Colombiano (PLC)
  • Leader: Simón GAVIRIA Muñoz
• Party: Radical Change Party / Partido Cambio Radical
  • Leader: Jorge ENRIQUE Veléz
• Party: Democratic Center Party / Partido Centro Democrático
  • ​Leader: Álvaro URIBE
• Party: Green Alliance / Alianza Verde
  • Leaders: Rodrigo ROMERO Hernández and Antonio SANGUINO Paez
• Party: Alternative Democratic Pole Party / Partido Polo Democrático Alternativo (PDA)
  • Leader: Alvaro José ARGOTO Muñoz

​Population and number of registered voters:

• Population: 47,791,393 (2014)
• Registered Voters: 32,835,856 (2014)

Population and number of registered voters:

• Population: 49,464,683 (2018 est.)
• Registered Voters:36,493,318 (2018)

Gender Data:

• Female Population: 25,136,143 (2018 est.)
• Is Colombia a signatory to CEDAW: Yes (17 July 1980)
• Has Colombia ratified CEDAW: Yes (19 January 1982)
• Gender Quota: Yes
• Female candidates in this election: Yes
• Number of Female Parliamentarians: 33 (House of Representatives); 23 (Senate)
• Human Development Index Position: 90 (2018)
• Social Institutions and Gender Index (SIGI) Categorization: Low (2014)

Disability Data:

• Is Colombia a signatory to CRPD: Yes (30 March 2007)
• Has Colombia ratified CRPD: Yes (10 May 2011)
• Population with a disability: 7,010,509 (2018 est.)