This article details the electoral divisions of Chile, outlining the distinct systems used for electing the national legislature and regional councils.
Overview Chile employs two primary systems for its elections: National Congress: The country is divided into electoral districts (distritos electorales) for the Chamber of Deputies and senatorial constituencies (circunscripciones senatoriales) for the Senate. Regional Councils: For the election of regional councillors, Chile is divided into provincial constituencies (circunscripciones provinciales). Typically, each province forms one constituency, though some larger provinces are subdivided into multiple constituencies.
Chamber of Deputies electoral districts The Chamber of Deputies is composed of 155 members elected from 28 electoral districts. Established by a 2015 electoral reform, these districts were formed by consolidating the previous 60 smaller districts. Each district elects between three and eight deputies using an open-list proportional representation system.
District Region Communes Deputies 1 Arica y Parinacota Arica, Camarones, Putre, General Lagos 3 2 Tarapacá Iquique, Alto Hospicio, Huara, Camiña, Colchane, Pica, Pozo Almonte 3 3 Antofagasta Tocopilla, María Elena, Calama, Ollagüe, San Pedro de Atacama, Antofagasta, Mejillones, Sierra Gorda, Taltal 5 4 Atacama Chañaral, Diego de Almagro, Copiapó, Caldera, Tierra Amarilla, Vallenar, Freirina, Huasco, Alto del Carmen 5 5 Coquimbo La Serena, La Higuera, Vicuña, Paihuano, Andacollo, Coquimbo, Ovalle, Río Hurtado, Combarbalá, Punitaqui, Monte Patria, Illapel, Salamanca, Los Vilos, Canela 7 6 Valparaíso La Ligua, Petorca, Cabildo, Papudo, Zapallar, Puchuncaví, Quintero, Nogales, Calera, La Cruz, Quillota, Hijuelas, Los Andes, San Esteban, Calle Larga, Rinconada, San Felipe, Putaendo, Santa María, Panquehue, Llaillay, Catemu, Olmué, Limache, Villa Alemana, Quilpué 8 7 Valparaíso Valparaíso, Juan Fernández, Isla de Pascua, Viña del Mar, Concón, San Antonio, Santo Domingo, Cartagena, El Tabo, El Quisco, Algarrobo, Casablanca 8 8 Santiago Colina, Lampa, Tiltil, Quilicura, Pudahuel, Estación Central, Cerrillos, Maipú 8 9 Santiago Conchalí, Renca, Huechuraba, Cerro Navia, Quinta Normal, Lo Prado, Recoleta, Independencia 7 10 Santiago Providencia, Ñuñoa, Santiago, Macul, San Joaquín, La Granja 8 11 Santiago Las Condes, Vitacura, Lo Barnechea, La Reina, Peñalolén 6 12 Santiago La Florida, Puente Alto, Pirque, San José de Maipo, La Pintana 7 13 Santiago El Bosque, La Cisterna, San Ramón, Pedro Aguirre Cerda, San Miguel, Lo Espejo 5 14 Santiago San Bernardo, Buin, Paine, Calera de Tango, Talagante, Peñaflor, El Monte, Isla de Maipo, Melipilla, María Pinto, Curacaví, Alhué, San Pedro, Padre Hurtado 6 15 O'Higgins Rancagua, Mostazal, Graneros, Codegua, Machalí, Requínoa, Rengo, Olivar, Doñihue, Coinco, Coltauco, Quinta de Tilcoco, Malloa 5 16 O'Higgins San Fernando, Chimbarongo, San Vicente, Peumo, Pichidegua, Las Cabras, Placilla, Nancagua, Chépica, Santa Cruz, Lolol, Pumanque, Palmilla, Peralillo, Navidad, Litueche, La Estrella, Pichilemu, Marchigüe, Paredones 4 17 Maule Curicó, Teno, Romeral, Molina, Sagrada Familia, Hualañé, Licantén, Vichuquén, Rauco, Talca, Curepto, Constitución, Empedrado, Pencahue, Maule, San Clemente, Pelarco, Río Claro, San Rafael 7 18 Maule Linares, Colbún, San Javier, Villa Alegre, Yerbas Buenas, Longaví, Retiro, Parral, Cauquenes, Pelluhue, Chanco 4 19 Ñuble Chillán, Coihueco, Pinto, San Ignacio, El Carmen, Pemuco, Yungay, Chillán Viejo, San Fabián, Ñiquén, San Carlos, San Nicolás, Ninhue, Quirihue, Cobquecura, Treguaco, Portezuelo, Coelemu, Ránquil, Quillón, Bulnes 5 20 Biobío Talcahuano, Hualpén, Concepción, San Pedro de la Paz, Chiguayante, Tomé, Penco, Florida, Hualqui, Coronel, Santa Juana 8 21 Biobío Lota, Lebu, Arauco, Curanilahue, Los Álamos, Cañete, Contulmo, Tirúa, Los Ángeles, Tucapel, Antuco, Quilleco, Alto Biobío, Santa Bárbara, Quilaco, Mulchén, Negrete, Nacimiento, San Rosendo, Laja, Cabrero, Yumbel 5 22 La Araucanía Angol, Renaico, Collipulli, Ercilla, Los Sauces, Purén, Lumaco, Traiguén, Victoria, Curacautín, Lonquimay, Melipeuco, Vilcún, Lautaro, Perquenco, Galvarino 4 23 La Araucanía Temuco, Padre Las Casas, Carahue, Nueva Imperial, Saavedra, Cholchol, Teodoro Schmidt, Freire, Pitrufquén, Cunco, Pucón, Curarrehue, Villarrica, Loncoche, Gorbea, Toltén 7 24 Los Ríos Valdivia, Lanco, Mariquina, Máfil, Corral, Panguipulli, Los Lagos, Futrono, Lago Ranco, Río Bueno, La Unión, Paillaco 5 25 Los Lagos Osorno, San Juan de la Costa, San Pablo, Puyehue, Río Negro, Purranque, Puerto Octay, Fresia, Frutillar, Llanquihue, Puerto Varas, Los Muermos 4 26 Los Lagos Puerto Montt, Cochamó, Maullín, Calbuco, Castro, Ancud, Quemchi, Dalcahue, Curaco de Vélez, Quinchao, Puqueldón, Chonchi, Queilén, Quellón, Chaitén, Hualaihué, Futaleufú, Palena 5 27 Aysén Coihaique, Lago Verde, Aisén, Cisnes, Guaitecas, Chile Chico, Río Ibáñez, Cochrane, O'Higgins, Tortel 3 28 Magallanes Natales, Torres del Paine, Punta Arenas, Río Verde, Laguna Blanca, San Gregorio, Porvenir, Primavera, Timaukel, Cabo de Hornos, Antártica 3
Historical districts (1990–2018) Prior to the 2015 reform, the Chamber of Deputies was elected from 60 districts (distritos). Each of these smaller districts elected two deputies via a binomial voting system.