Parliamentary elections were held in Colombia on 11 March 2018 to elect 102 members of the Senate and 165 members of the House of Representatives.

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Quick Facts Party, % ...

2018 Colombian parliamentary election

← 2014 11 March 2018 2022 →

Party % Seats +/– Senate Democratic Center 16.39 19 −1 Radical Change 14.03 16 +7 Conservative 12.65 14 −4 Liberal 12.36 14 −3 Party of the U 12.08 14 −7 Green Alliance 8.57 9 +4 PDA 4.74 5 0 List of Decency [es] 3.40 3 +3 MIRA 3.25 3 +3 CJL 3.04 3 New FARC 0.36 5 New MAIS [lower-alpha 1] 1 0 AICO [lower-alpha 1] 1 +1 Chamber of Representatives Liberal 16.53 35 −4 Democratic Center 16.08 32 +13 Radical Change 14.47 30 +14 Party of the U 12.33 25 −12 Conservative 12.18 21 −6 Green Alliance 5.95 9 +3 MIRA 3.90 1 −2 PDA 2.96 2 −1 OC 2.08 2 −4 List of Decency [es] 1.76 2 +2 CJL 1.29 1 New AV–PDA–ASI 0.48 1 New MAIS 0.30 2 +2 FARC 0.23 5 New CCADCNPR [lower-alpha 1] 1 New CCLM [lower-alpha 1] 1 New This lists parties that won seats. See the complete results below. Results of the election in the House of Representatives and Senate (bottom left).

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The Chamber of Representatives consisted of 172 members; 162 were elected by proportional representation from 33 multi-member constituencies based on the departments, with seats allocated using the largest remainder method.^[1] Two members were elected by the Afro-Colombian community and one by the indigenous community.^[2] Although a new constituency had been created for the Raizal minority, legislation had not been approved to allow the election to take place. A further five seats were reserved for FARC and one for the running mate of the runner-up in the presidential election as part of the Colombian peace process.^[3][4]

The Senate consisted of 108 members; 100 were elected a single nationwide constituency by proportional representation (with seats allocated using the largest remainder); two were elected from a two-seat constituency for indigenous Colombians;^[5] five were reserved for FARC and one for the runner-up in the presidential election.

1. Green Alliance
2. National Integration Party
3. Colombian Conservative Party
4. Democratic Center
5. Movimiento Todos Somos Colombia
6. Radical Change
7. Colombian Liberal Party
8. Grupo Significativo de Ciudadanos Colombia Justa Libres
9. Grupo Significativo de Ciudadanos Unión con Fortaleza
10. Alternative Democratic Pole
11. Social Party of National Unity
12. Common Alternative Revolutionary Force
13. Grupo Significativo de Ciudadanos Sí Se Puede
14. Independent Movement of Absolute Renovation
15. Partido Somos Región Colombia [es; fr; it]
16. La Lista de la Decencia [es] (Indigenous Social Alliance Movement, Unión Patriótica and Indigenous and Social Alternative Movement)