 The 2008-2012/2012-2016 alcalde is Lucy Lara Leiva (RN).Within the electoral divisions of Chile, Pencahue is represented in the Chamber of Deputies by Pablo Lorenzini (PDC) and Pedro Pablo Alvarez-Salamanca (UDI) as part of the 38th electoral district, (together with Curepto, Constitución, Empedrado, Maule, San Clemente, Pelarco, Río Claro and San Rafael).The commune is represented in the Senate by Juan Antonio Coloma Correa (UDI) and Andrés Zaldívar Larraín (PDC) as part of the 10th senatorial constituency (Maule-North).