San Juan has a population of 78,153, making it the 27th largest place we list in Peru. It is in Loreto.
San Juan holds 0.22% of Peru's 34,922,148 people. Lima, the largest place we list there, is 99 times its size.
78,153
population
#27
in Peru
Nearby in size
| Place | Region | Population |
|---|---|---|
| Chosica | Lima region | 88,606 |
| Puerto Maldonado | Madre de Dios | 85,024 |
| Breña | Lima region | 81,909 |
| Ciudad Satelite | Arequipa | 76,410 |
| Chilca | Junin | 73,371 |
| Selva Alegre | Arequipa | 72,696 |
Figures are the latest available in GeoNames (CC BY 4.0), which draws on national censuses of varying dates — treat them as recent, not same-year. Country totals are UN World Population Prospects 2024 (medium variant) where the UN lists the country separately; the handful it reports under a parent state keep a GeoNames figure and are marked as such. Sources & method.