Montes de Oca's 2026 population is now estimated at 51,784. In 2023, the population of Montes de Oca was 53,335. Montes de Oca experienced a decrease of -512 residents over the past year, marking an annual decline of -0.98%. These population values and projections come from World Population Review Internal Projections .
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| San Jose | 364,062 | 0.82% |
| Alajuela | 340,416 | 1.39% |
| Desamparados | 223,378 | 0.02% |
| San Carlos | 209,455 | 1.32% |
| Cartago | 170,677 | 0.79% |
| Perez Zeledon | 163,877 | 1.09% |
| Pococi | 152,234 | 1% |
| Puntarenas (incl. Monte Verde) | 149,385 | 1.33% |
| Goicoechea | 134,096 | 0.37% |
| Heredia | 133,143 | 0.23% |
| Limon | 124,783 | 1.74% |
| La Union | 98,944 | -0.15% |
| San Ramon | 96,906 | 0.96% |
| Liberia | 86,564 | 1.95% |
| Turrialba | 85,791 | 1.12% |
| Alajuelita | 80,541 | -0.15% |
| Grecia | 78,763 | 0.82% |
| Santa Cruz | 78,377 | 2.01% |
| Escazu | 74,551 | 1.05% |
| Tibas | 73,218 | -0.46% |