| Region | Capital | Population | Area(km.²) |
|---|---|---|---|
| Amazonas | Chachapoyas | 375,993 | 39,249 |
| Ancash | Huaraz | 1,063,459 | 35,826 |
| Apurímac | Abancay | 404,190 | 20,896 |
| Arequipa | Arequipa | 1,152,303 | 63,344 |
| Ayacucho | Ayacucho | 612,489 | 43,815 |
| Cajamarca | Cajamarca | 1,387,809 | 33,248 |
| Callao | Callao | 876,877 | 147 |
| Cusco | Cusco | 1,171,403 | 71,892 |
| Huancavelica | Huancavelica | 454,797 | 22,131 |
| Huánuco | Huánuco | 762,223 | 36,887 |
| Ica | Ica | 711,932 | 21,328 |
| Junín | Huancayo | 1,225,474 | 44,410 |
| La Libertad | Trujillo | 1,617,050 | 25,515 |
| Lambayeque | Chiclayo | 1,112,868 | 14,213 |
| Lima [Province] | Lima | 7,605,742 | 2,665 |
| Lima | Huacho | 839,469 | 32,137 |
| Loreto | Iquitos | 891,732 | 368,852 |
| Madre de Dios | Puerto Maldonado | 109,555 | 85,183 |
| Moquegua | Moquegua | 161,533 | 15,734 |
| Pasco | Cerro de Pasco | 280,449 | 25,320 |
| Piura | Piura | 1,676,315 | 35,891 |
| Puno | Puno | 1,268,441 | 70,003 |
| San Martín | Moyobamba | 728,808 | 51,253 |
| Tacna | Tacna | 288,781 | 16,076 |
| Tumbes | Tumbes | 200,306 | 4,669 |
| Ucayali | Pucallpa | 432,159 | 102,411 |
