headed by an alcalde who is directly elected every four years. The 2008-2012 alcalde is René Mardones Valencia (Ind.).
* Julio Figueroa Contreras
* Geovanna Serey Lizana
* Gabriel Bianchini Frost
* Julio Contreras Tapia
* Alejo Rodriguez Toledo
* Benjamin Olguin Cáceres

Within the electoral divisions of Chile, San Esteban is represented in the Chamber of Deputies