| Region | Capital | ISO Code | # Provinces | Area [km²] | Population (2026) |
|---|---|---|---|---|---|
| Arica y Parinacota | Arica | CL-AP | 2 | 16873.3 | 259802 |
| Tarapacá | Iquique | CL-TA | 2 | 42225.8 | 406287 |
| Antofagasta | Antofagasta | CL-AN | 3 | 126049.1 | 714142 |
| Atacama | Copiapó | CL-AT | 3 | 75176.2 | 319992 |
| Coquimbo | La Serena | CL-CO | 3 | 40579.9 | 879267 |
| Valparaíso | Valparaíso | CL-VS | 8 | 16396.1 | 2010849 |
| Metropolitan of Santiago | Santiago | CL-RM | 6 | 15403.2 | 8420729 |
| O’Higgins | Rancagua | CL-LI | 3 | 16387.0 | 987228 |
| Maule | Talca | CL-ML | 4 | 30296.1 | 1123008 |
| Ñuble | Chillán | CL-NB | 3 | 13178.5 | 512289 |
| Biobío | Concepción | CL-BI | 3 | 23890.2 | 1613059 |
| Araucanía | Temuco | CL-AR | 2 | 31842.3 | 1010423 |
| Los Ríos | Valdivia | CL-LR | 2 | 18429.5 | 398230 |
| Los Lagos | Puerto Montt | CL-LL | 4 | 48583.6 | 890284 |
| Aysén | Coyhaique | CL-AI | 4 | 108494.4 | 108306 |
| Magallanes & Chilean Antarctica | Punta Arenas | CL-MA | 4 | 132291.1 | 182217 |