# Electoral divisions of Chile

This article covers the electoral division of Chile, which involves two distinct systems:
* Chamber of Deputies and Senate: Chile is divided into electoral districts and senatorial constituencies for the election of members of the Chamber of Deputies and the Senate.
* Regional Councils: For the election of members of the Regional Councils, Chile is divided into provincial constituencies, with each province generally corresponding to one constituency, although some provinces are further divided into multiple constituencies.
The article includes lists of the various electoral structures and divisions in Chile.

## Chamber of Deputies electoral districts

The Chamber of Deputies consists of 155 members across 28 electoral districts (distrito electoral), each electing between 3 and 8 deputies. These districts were created in 2015 by merging the previous 60 into larger ones.
| 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 |

### 1990-2018 electoral districts

Between 1990 and 2018, there were 60 electoral districts, each electing two deputies. The districts were composed of groups of communes.
| District | Region | Communes | Population (2002 census) | % of total population | VAP | Enrolled | Total votes | Valid votes | Turnout | E/VAP | T/VAP | V/VAP |
| 1 | Arica and Parinacota | Arica, Camarones, Putre, General Lagos | 189,644 | 1.3% | 131,900 | 111,699 | 82,438 | 74,721 | 73.8% | 84.7% | 62.5% | 56.6% |
| 2 | Tarapacá | Iquique, Huara, Camiña, Colchane, Pica, Pozo Almonte, Alto Hospicio | 238,950 | 1.6% | 217,175 | 125,620 | 100,659 | 93,105 | 80.1% | 57.8% | 46.3% | 42.9% |
| 3 | Antofagasta | Tocopilla, María Elena, Calama, Ollagüe, San Pedro de Atacama | 175,205 | 1.2% | 126,235 | 94,336 | 74,572 | 65,886 | 79.0% | 74.7% | 59.1% | 52.2% |
| 4 | Antofagasta | Antofagasta, Mejillones, Sierra Gorda, Taltal | 318,779 | 2.1% | 274,313 | 148,543 | 124,270 | 110,858 | 83.7% | 54.2% | 45.3% | 40.4% |
| 5 | Atacama | Chañaral, Diego de Almagro, Copiapó | 161,223 | 1.1% | 128,050 | 79,247 | 66,737 | 61,076 | 84.2% | 61.9% | 52.1% | 47.7% |
| 6 | Atacama | Caldera, Tierra Amarilla, Vallenar, Freirina, Huasco, Alto del Carmen | 93,113 | 0.6% | 66,816 | 57,092 | 47,856 | 43,260 | 83.8% | 85.4% | 71.6% | 64.7% |
| 7 | Coquimbo | La Serena, La Higuera, Vicuña, Paiguano, Andacollo | 202,335 | 1.3% | 177,984 | 111,506 | 97,551 | 88,930 | 87.5% | 62.6% | 54.8% | 50.0% |
| 8 | Coquimbo | Coquimbo, Ovalle, Río Hurtado | 265,896 | 1.8% | 229,291 | 129,887 | 114,297 | 106,372 | 88.0% | 56.6% | 49.8% | 46.4% |
| 9 | Coquimbo | Combarbalá, Punitaqui, Monte Patria, Illapel, Salamanca, Los Vilos, Canela | 134,979 | 0.9% | 100,999 | 78,935 | 65,760 | 60,636 | 83.3% | 78.2% | 65.1% | 60.0% |
| 10 | Valparaíso | La Ligua, Petorca, Cabildo, Papudo, Zapallar, Puchuncaví, Quintero, Nogales, Calera, La Cruz, Quillota, Hijuelas | 280,655 | 1.9% | 231,725 | 166,787 | 151,165 | 136,805 | 90.6% | 72.0% | 65.2% | 59.0% |
| 11 | Valparaíso | Los Andes, San Esteban, Calle Larga, Rinconada, San Felipe, Putaendo, Santa María, Panquehue, Llaillay, Catemu | 223,594 | 1.5% | 186,085 | 127,631 | 116,197 | 106,992 | 91.0% | 68.6% | 62.4% | 57.5% |
| 12 | Valparaíso | Olmué, Limache, Villa Alemana, Quilpué | 277,525 | 1.8% | 253,998 | 155,295 | 136,331 | 121,650 | 87.8% | 61.1% | 53.7% | 47.9% |
| 13 | Valparaíso | Valparaíso, Juan Fernández, Isla de Pascua | 280,406 | 1.9% | 210,529 | 173,947 | 145,787 | 130,751 | 83.8% | 82.6% | 69.2% | 62.1% |
| 14 | Valparaíso | Viña del Mar, Concón | 319,204 | 2.1% | 261,273 | 202,518 | 174,962 | 159,004 | 86.4% | 77.5% | 67.0% | 60.9% |
| 15 | Valparaíso | San Antonio, Santo Domingo, Cartagena, El Tabo, El Quisco, Algarrobo, Casablanca | 158,468 | 1.0% | 143,078 | 102,863 | 92,954 | 85,760 | 90.4% | 71.9% | 65.0% | 59.9% |
| 16 | Santiago | Colina, Lampa, Tiltil, Quilicura, Pudahuel | 454,969 | 3.0% | 442,415 | 196,354 | 181,399 | 164,475 | 92.4% | 44.4% | 41.0% | 37.2% |
| 17 | Santiago | Conchalí, Renca, Huechuraba | 340,844 | 2.3% | 237,603 | 174,946 | 157,655 | 140,469 | 90.1% | 73.6% | 66.4% | 59.1% |
| 18 | Santiago | Cerro Navia, Quinta Normal, Lo Prado | 356,640 | 2.4% | 236,121 | 185,340 | 166,885 | 150,425 | 90.0% | 78.5% | 70.7% | 63.7% |
| 19 | Santiago | Recoleta, Independencia | 213,699 | 1.4% | 138,808 | 131,104 | 115,167 | 102,642 | 87.8% | 94.4% | 83.0% | 73.9% |
| 20 | Santiago | Estación Central, Cerrillos, Maipú | 670,690 | 4.4% | 699,393 | 294,624 | 267,571 | 241,446 | 90.8% | 42.1% | 38.3% | 34.5% |
| 21 | Santiago | Providencia, Ñuñoa | 284,385 | 1.9% | 224,404 | 219,453 | 190,697 | 177,839 | 86.9% | 97.8% | 85.0% | 79.2% |
| 22 | Santiago | Santiago | 200,792 | 1.3% | 138,022 | 139,240 | 119,474 | 108,786 | 85.8% | 100.9% | 86.6% | 78.8% |
| 23 | Santiago | Las Condes, Vitacura, Lo Barnechea | 406,141 | 2.7% | 356,860 | 256,711 | 228,983 | 215,643 | 89.2% | 71.9% | 64.2% | 60.4% |
| 24 | Santiago | La Reina, Peñalolén | 312,822 | 2.1% | 248,132 | 163,297 | 148,120 | 135,303 | 90.7% | 65.8% | 59.7% | 54.5% |
| 25 | Santiago | Macul, San Joaquín, La Granja | 342,680 | 2.3% | 232,383 | 181,069 | 161,616 | 142,146 | 89.3% | 77.9% | 69.5% | 61.2% |
| 26 | Santiago | La Florida | 365,674 | 2.4% | 303,912 | 168,849 | 154,173 | 141,103 | 91.3% | 55.6% | 50.7% | 46.4% |
| 27 | Santiago | El Bosque, La Cisterna, San Ramón | 355,618 | 2.4% | 243,119 | 189,698 | 169,440 | 149,776 | 89.3% | 78.0% | 69.7% | 61.6% |
| 28 | Santiago | Pedro Aguirre Cerda, San Miguel, Lo Espejo | 306,232 | 2.0% | 203,393 | 183,352 | 162,779 | 146,294 | 88.8% | 90.1% | 80.0% | 71.9% |
| 29 | Santiago | Puente Alto, Pirque, San José de Maipo, La Pintana | 712,941 | 4.7% | 659,161 | 228,013 | 209,409 | 184,587 | 91.8% | 34.6% | 31.8% | 28.0% |
| 30 | Santiago | San Bernardo, Buin, Paine, Calera de Tango | 378,444 | 2.5% | 322,710 | 185,875 | 169,866 | 152,201 | 91.4% | 57.6% | 52.6% | 47.2% |
| 31 | Santiago | Talagante, Peñaflor, El Monte, Isla de Maipo, Melipilla, María Pinto, Curacaví, Alhué, San Pedro, Padre Hurtado | 358,614 | 2.4% | 300,179 | 195,395 | 182,129 | 163,708 | 93.2% | 65.1% | 60.7% | 54.5% |
| 32 | O'Higgins | Rancagua | 214,344 | 1.4% | 175,330 | 108,471 | 98,630 | 90,298 | 90.9% | 61.9% | 56.3% | 51.5% |
| 33 | O'Higgins | Mostazal, Graneros, Codegua, Machalí, Requínoa, Rengo, Olivar, Doñihue, Coinco, Coltauco, Quinta de Tilcoco, Malloa | 236,358 | 1.6% | 191,752 | 139,992 | 130,457 | 117,289 | 93.2% | 73.0% | 68.0% | 61.2% |
| 34 | O'Higgins | San Fernando, Chimbarongo, San Vicente, Peumo, Pichidegua, Las Cabras | 188,247 | 1.2% | 151,199 | 109,415 | 101,090 | 93,894 | 92.4% | 72.4% | 66.9% | 62.1% |
| 35 | O'Higgins | Placilla, Nancagua, Chépica, Santa Cruz, Lolol, Pumanque, Palmilla, Peralillo, Navidad, Litueche, La Estrella, Pichilemu, Marchihue, Paredones | 141,678 | 0.9% | 112,478 | 93,316 | 84,467 | 78,037 | 90.5% | 83.0% | 75.1% | 69.4% |
| 36 | Maule | Curicó, Teno, Romeral, Molina, Sagrada Familia, Hualañé, Licantén, Vichuquén, Rauco | 244,053 | 1.6% | 198,539 | 141,956 | 130,790 | 119,898 | 92.1% | 71.5% | 65.9% | 60.4% |
| 37 | Maule | Talca | 201,797 | 1.3% | 171,840 | 101,083 | 90,845 | 83,967 | 89.9% | 58.8% | 52.9% | 48.9% |
| 38 | Maule | Curepto, Constitución, Empedrado, Pencahue, Maule, San Clemente, Pelarco, Río Claro, San Rafael | 151,169 | 1.0% | 116,050 | 92,478 | 82,820 | 76,507 | 89.6% | 79.7% | 71.4% | 65.9% |
| 39 | Maule | Linares, Colbún, San Javier, Villa Alegre, Yerbas Buenas | 169,520 | 1.1% | 130,381 | 103,483 | 90,468 | 83,491 | 87.4% | 79.4% | 69.4% | 64.0% |
| 40 | Maule | Longaví, Retiro, Parral, Cauquenes, Pelluhue, Chanco | 141,558 | 0.9% | 105,142 | 91,096 | 78,463 | 72,949 | 86.1% | 86.6% | 74.6% | 69.4% |
| 41 | Biobío | Chillán, Coihueco, Pinto, San Ignacio, El Carmen, Pemuco, Yungay, Chillán Viejo | 272,081 | 1.8% | 213,455 | 154,180 | 136,256 | 125,991 | 88.4% | 72.2% | 63.8% | 59.0% |
| 42 | Biobío | San Fabián, Ñiquén, San Carlos, San Nicolás, Ninhue, Quirihue, Cobquecura, Treguaco, Portezuelo, Coelemu, Ránquil, Quillón, Bulnes, Cabrero, Yumbel | 211,802 | 1.4% | 157,287 | 142,296 | 122,545 | 112,459 | 86.1% | 90.5% | 77.9% | 71.5% |
| 43 | Biobío | Talcahuano, Hualpén | 250,348 | 1.7% | 192,901 | 137,077 | 118,209 | 107,257 | 86.2% | 71.1% | 61.3% | 55.6% |
| 44 | Biobío | Concepción, San Pedro de la Paz, Chiguayante | 377,810 | 2.5% | 320,848 | 206,846 | 180,532 | 167,843 | 87.3% | 64.5% | 56.3% | 52.3% |
| 45 | Biobío | Tomé, Penco, Florida, Hualqui, Coronel, Santa Juana | 235,642 | 1.6% | 188,420 | 140,963 | 124,924 | 113,555 | 88.6% | 74.8% | 66.3% | 60.3% |
| 46 | Biobío | Lota, Lebu, Arauco, Curanilahue, Los Álamos, Cañete, Contulmo, Tirúa | 206,344 | 1.4% | 150,714 | 123,242 | 106,442 | 97,420 | 86.4% | 81.8% | 70.6% | 64.6% |
| 47 | Biobío | Los Ángeles, Tucapel, Antuco, Quilleco, Santa Bárbara, Quilaco, Mulchén, Negrete, Nacimiento, San Rosendo, Laja, Alto Biobío | 307,535 | 2.0% | 240,503 | 174,267 | 150,628 | 137,868 | 86.4% | 72.5% | 62.6% | 57.3% |
| 48 | Araucanía | Angol, Renaico, Collipulli, Ercilla, Los Sauces, Purén, Lumaco, Traiguén | 140,907 | 0.9% | 97,638 | 88,296 | 72,931 | 67,446 | 82.6% | 90.4% | 74.7% | 69.1% |
| 49 | Araucanía | Victoria, Curacautín, Lonquimay, Melipeuco, Vilcún, Lautaro, Perquenco, Galvarino | 140,091 | 0.9% | 101,118 | 89,302 | 73,425 | 66,797 | 82.2% | 88.3% | 72.6% | 66.1% |
| 50 | Araucanía | Temuco, Padre Las Casas | 304,142 | 2.0% | 265,574 | 150,388 | 128,930 | 120,052 | 85.7% | 56.6% | 48.5% | 45.2% |
| 51 | Araucanía | Carahue, Nueva Imperial, Saavedra, Teodoro Schmidt, Freire, Pitrufquén, Cholchol | 142,795 | 0.9% | 106,139 | 86,895 | 73,235 | 67,023 | 84.3% | 81.9% | 69.0% | 63.1% |
| 52 | Araucanía | Cunco, Pucón, Curarrehue, Villarrica, Loncoche, Gorbea, Toltén | 141,600 | 0.9% | 112,773 | 86,261 | 72,761 | 67,591 | 84.3% | 76.5% | 64.5% | 59.9% |
| 53 | Los Ríos | Valdivia, Lanco, Mariquina, Máfil, Corral | 186,565 | 1.2% | 149,295 | 107,308 | 90,736 | 83,776 | 84.6% | 71.9% | 60.8% | 56.1% |
| 54 | Los Ríos | Panguipulli, Los Lagos, Futrono, Lago Ranco, Río Bueno, La Unión, Paillaco | 169,831 | 1.1% | 123,147 | 98,249 | 83,748 | 77,496 | 85.2% | 79.8% | 68.0% | 62.9% |
| 55 | Los Lagos | Osorno, San Juan de la Costa, San Pablo | 164,468 | 1.1% | 129,621 | 97,096 | 84,502 | 77,595 | 87.0% | 74.9% | 65.2% | 59.9% |
| 56 | Los Lagos | Puyehue, Río Negro, Purranque, Puerto Octay, Fresia, Frutillar, Llanquihue, Puerto Varas, Los Muermos | 151,583 | 1.0% | 114,001 | 92,626 | 82,407 | 76,494 | 89.0% | 81.3% | 72.3% | 67.1% |
| 57 | Los Lagos | Puerto Montt, Cochamó, Maullín, Calbuco | 226,951 | 1.5% | 202,368 | 113,521 | 97,605 | 87,526 | 86.0% | 56.1% | 48.2% | 43.3% |
| 58 | Los Lagos | Castro, Ancud, Quemchi, Dalcahue, Curaco de Vélez, Quinchao, Puqueldón, Chonchi, Queilén, Quellón, Chaitén, Hualaihué, Futaleufú, Palena | 173,737 | 1.1% | 144,130 | 97,470 | 82,926 | 75,564 | 85.1% | 67.6% | 57.5% | 52.4% |
| 59 | Aisén | Coihaique, Lago Verde, Aisén, Cisnes, Guaitecas, Chile Chico, Río Ibáñez, Cochrane, O'Higgins, Tortel | 91,492 | 0.6% | 72,475 | 58,540 | 43,734 | 40,961 | 74.7% | 80.8% | 60.3% | 56.5% |
| 60 | Magallanes | Natales, Torres del Paine, Punta Arenas, Río Verde, Laguna Blanca, San Gregorio, Porvenir, Primavera, Timaukel, Cabo de Hornos, Antártica | 150,826 | 1.0% | 116,734 | 99,847 | 72,132 | 66,163 | 72.2% | 85.5% | 61.8% | 56.7% |
Notes: "VAP" is voting age population (population 18 and above on 13 December 2009); "Valid votes" is equal to "Total votes" minus null votes and blank votes; "T" are total votes; "E" is enrolled population; "V" are valid votes. The voting results are for the 13 December 2009 Chamber of Deputies election.

## Senatorial constituencies

The Senate consists of 50 members, with each region forming a senatorial constituency (circunscripción senatorial). Each constituency elects between 2 and 5 senators.
| Sen. const. | Region | Senators |
| 1° | Arica and Parinacota | 2 |
| 2° | Tarapacá | 2 |
| 3° | Antofagasta | 3 |
| 4° | Atacama | 2 |
| 5° | Coquimbo | 3 |
| 6° | Valparaíso | 5 |
| 7° | Santiago | 5 |
| 8° | O'Higgins | 3 |
| 9° | Maule | 5 |
| 10° | Biobío | 3 |
| 11° | La Araucanía | 5 |
| 12° | Los Ríos | 3 |
| 13° | Los Lagos | 3 |
| 14° | Aysén | 2 |
| 15° | Magallanes | 2 |
| 16° | Ñuble | 2 |

### 1990-2018 senatorial constituencies

Before 2018, there were 19 senatorial constituencies. Each region constituted a senatorial constituency, except for the Valparaíso, Santiago, Maule, Biobío, and La Araucanía regions, which were each divided into two senatorial constituencies. Each senatorial constituency elected two senators. Constituencies that did not correspond to full regions were made up of several electoral districts within a region.
In 2009, the Constitution was amended to ensure that each region constituted at least one senatorial constituency. Before the law defining senatorial constituencies was updated to reflect this change, the list was as follows:
| Sen. const. | Informal name | Geographical composition | Last election |
| 1 | — | Arica and Parinacota Region (XV), Tarapacá Region (I) | 2009 |
| 2 | — | Antofagasta Region (II) | 2013 |
| 3 | — | Atacama Region (III) | 2009 |
| 4 | — | Coquimbo Region (IV) | 2013 |
| 5 | Valparaíso Cordillera | Districts 10, 11 and 12 of Valparaíso Region (V) | 2009 |
| 6 | Valparaíso Coast | Districts 13, 14 and 15 of Valparaíso Region (V) | 2009 |
| 7 | Santiago West | Districts 16, 17, 18, 19, 20, 22, 30 and 31 of Santiago Metropolitan Region (RM) | 2013 |
| 8 | Santiago East | Districts 21, 23, 24, 25, 26, 27, 28 and 29 of Santiago Metropolitan Region (RM) | 2013 |
| 9 | — | O'Higgins Region (VI) | 2013 |
| 10 | Maule North | Districts 36, 37 and 38 of Maule Region (VII) | 2009 |
| 11 | Maule South | Districts 39 and 40 of Maule Region (VII) | 2009 |
| 12 | Biobío Coast | Districts 42, 43, 44 and 45 of Biobío Region (VIII) | 2013 |
| 13 | Biobío Cordillera | Districts 41, 46 and 47 of Biobío Region (VIII) | 2013 |
| 14 | Araucanía North | Districts 48 and 49 of Araucanía Region (IX) | 2009 |
| 15 | Araucanía South | Districts 50, 51 and 52 of Araucanía Region (IX) | 2009 |
| 16 | — | Los Ríos Region (XIV) [Before August 15, 2009: Los Ríos Region (XIV) and district 55 of Los Lagos Region (X)] | 2013 |
| 17 | — | Los Lagos Region (X) [Before August 15, 2009: Districts 56, 57 and 58 of Los Lagos Region (X)] | 2013 |
| 18 | — | Aisén Region (XI) | 2009 |
| 19 | — | Magallanes Region (XII) | 2013 |

## Provincial constituencies

There are 64 provincial constituencies (circunscripción provincial). Each province constitutes a provincial constituency, except Valparaíso, Santiago, Cachapoal, Concepción and Cautín, which are divided into two, six, two, three and two constituencies, respectively. The number of regional advisors each constituency elects depends on its population.
| Region | Provincial constituencies | Advisors |
| Arica and Parinacota | Arica, Parinacota | 14 |
| Tarapacá | El Tamarugal, Iquique | 14 |
| Antofagasta | Antofagasta, El Loa, Tocopilla | 16 |
| Atacama | Chañaral, Copiapó, Huasco | 14 |
| Coquimbo | Choapa, Elqui, Limarí | 16 |
| Valparaíso | Isla de Pascua, Los Andes, Marga Marga, Petorca, Quillota, San Antonio, San Felipe de Aconcagua, Valparaíso I, Valparaíso II | 28 |
| Santiago | Chacabuco, Cordillera, Maipo, Melipilla, Santiago I, Santiago II, Santiago III, Santiago IV, Santiago V, Santiago VI, Talagante | 34 |
| O'Higgins | Cachapoal I, Cachapoal II, Cardenal Caro, Colchagua | 16 |
| Maule | Cauquenes, Curicó, Linares, Talca | 20 |
| Biobío | Arauco, Biobío, Concepción I, Concepción II, Concepción III, Ñuble | 28 |
| Araucanía | Cautín I, Cautín II, Malleco | 20 |
| Los Ríos | Ranco, Valdivia | 14 |
| Los Lagos | Chiloé, Llanquihue, Osorno, Palena | 16 |
| Aisén | Aisén, Capitán Prat, Coihaique, General Carrera | 14 |
| Magallanes | Antártica Chilena, Magallanes, Tierra del Fuego, Última Esperanza | 14 |
The following five provinces are divided into two to six provincial constituencies, each containing a number of communes:

### Valparaíso Province

** Valparaíso I: Puchuncaví, Quintero, Concón, and Viña del Mar.
** Valparaíso II: Juan Fernández, Valparaíso, and Casablanca.

### Santiago Province

** Santiago I: Pudahuel, Quilicura, Conchalí, Huechuraba, and Renca.
** Santiago II: Independencia, Recoleta, Santiago, Quinta Normal, Cerro Navia, and Lo Prado.
** Santiago III: Maipú, Cerrillos, and Estación Central.
** Santiago IV: Ñuñoa, Providencia, Las Condes, Vitacura, Lo Barnechea, and La Reina.
** Santiago V: Peñalolén, La Granja, Macul, San Joaquín, and La Florida.
** Santiago VI: El Bosque, La Cisterna, San Ramón, Lo Espejo, Pedro Aguirre Cerda, San Miguel, and La Pintana.

### Cachapoal Province

** Cachapoal I: Rancagua.
** Cachapoal II: Mostazal, Graneros, Codegua, Machalí, Olivar, Doñihue, Coltauco, Las Cabras, Peumo, Coinco, Malloa, Quinta de Tilcoco, Rengo, Requínoa, Pichidegua, and San Vicente.

### Concepción Province

** Concepción I: Tomé, Penco, Hualpén, and Talcahuano.
** Concepción II: Chiguayante, Concepción, and Florida.
** Concepción III: San Pedro de la Paz, Coronel, Lota, Hualqui, and Santa Juana.

### Cautín Province

** Cautín I: Temuco, and Padre Las Casas.
** Cautín II: Galvarino, Lautaro, Perquenco, Vilcún, Melipeuco, Carahue, Cholchol, Freire, Nueva Imperial, Pitrufquén, Saavedra, Teodoro Schmidt, Cunco, Curarrehue, Gorbea, Loncoche, Pucón, Toltén, and Villarrica.