Porto-Novo's 2026 population is now estimated at 314,100. In 1979, the population of Porto-Novo was 133,168. Porto-Novo has grown by 3,884 in the last year, which represents a 1.25% annual change. These population values and projections come from INStaD Benin - Statistiques Demographiques (RGPH series by commune) and World Population Review Internal Projections .
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Abomey-calavi | 880,892 | 2% |
| Cotonou | 820,199 | 1.34% |
| Djougou | 334,084 | 1.58% |
| Parakou | 326,324 | 1.73% |
| Banikoara | 319,262 | 1.73% |
| Porto-Novo | 314,100 | 1.25% |
| Seme-Kpodji | 294,256 | 1.87% |
| Tchaourou | 289,877 | 1.86% |
| Kandi | 224,537 | 1.63% |
| Kalale | 217,509 | 1.76% |
| Malanville | 217,403 | 1.78% |
| Bohicon | 215,642 | 1.63% |
| Aplahoue | 215,305 | 1.64% |
| Ketou | 201,189 | 1.74% |
| Ouidah | 200,324 | 1.51% |
| Nikki | 194,508 | 1.77% |
| Ouesse | 184,817 | 1.82% |
| Savalou | 180,810 | 1.56% |
| Bassila | 167,381 | 1.71% |
| Djakotome | 165,889 | 1.47% |
