Tarapacá Region
Within the electoral divisions of Chile, Colchane is represented in the Chamber of Deputies by Marta Isasi (Ind.) and Hugo Gutiérrez (PC) as part of the 2nd electoral district, which includes the entire Tarapacá Region. The commune is represented in the Senate by Fulvio Rossi Ciocca (PS) and Jaime Orpis Bouchon (UDI) as part of the 1st senatorial constituency (Arica and Parinacota Region and Tarapacá Region).