| population | |
| Brazzaville department | 1307911 |
| Cuvette | 156044 |
| Cuvette-Ouest | 50392 |
| Lekoumou | 78344 |
| population | |
| Likouala | 90000 |
| Plateaux | 174591 |
| Pointe-Noire | 715334 |
| Pool | 240999 |
| population | |
| Region de la Bouenza | 309073 |
| Region du Kouilou | 909356 |
| Region du Niari | 231271 |
| Sangha | 85738 |
