 As a commune, Rauco is a third-level administrative division of Chile administered by a municipal council, headed by an alcalde who is directly elected every four years.The 2013-2017 alcalde is Enrique Olivares Farías, of the (Social Democrat Radical Party).Within the electoral divisions of Chile, Rauco is represented in the Chamber of Deputies by Roberto León (PDC) and Celso Morales (UDI) as part of the 36th electoral district, (together with Curicó, Teno, Romeral, Molina, Sagrada Familia, Hualañé, Licantén and Vichuquén).