San Agustin de Cajas's 2026 population is now estimated at 22,010. In 2007, the population of San Agustin de Cajas was 8,756. San Agustin de Cajas has grown by 850 in the last year, which represents a 4.02% annual change. These population values and projections come from Peru city census series 1993-2017 via CityPopulation official attribution, Peru city projection 2022 via CityPopulation official attribution and World Population Review Internal Projections .
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Lima | 12,003,443 | 1.82% |
| Arequipa | 1,188,831 | 1.38% |
| Trujillo | 1,129,355 | 2.45% |
| Chiclayo | 696,106 | 1.22% |
| Piura | 609,909 | 2.75% |
| Cusco | 522,320 | 1.49% |
| Huancayo | 476,971 | 1.42% |
| Iquitos | 452,836 | 1.26% |
| Pucallpa | 434,055 | 2.29% |
| Chimbote | 419,890 | 1.53% |
| Tacna | 363,022 | 2.1% |
| Ica | 362,426 | 2.71% |
| Juliaca | 346,068 | 2.23% |
| Ayacucho | 258,645 | 1.88% |
| Chincha Alta | 243,242 | 2.58% |
| Cajamarca | 242,196 | 1.57% |
| Huanuco | 236,367 | 1.66% |
| Sullana | 220,092 | 1.41% |
| Tarapoto | 185,781 | 2.27% |
| Huacho | 176,703 | 0.57% |