Juanjuí Population 2026
Juanjuí has a population of 37,715, making it the #67 biggest city in 🇵🇪 Peru, located in San Martín Department. Roughly 0.1% of Peru's population lives here. It is about 205× smaller than Lima, the country's biggest city.
Population (city proper)
37,715
Rank in Peru
#67
Coordinates
7.18°S, 76.73°W
~278 m elevation · America/Lima
Distance to capital (Lima)
542 km
337 miles, straight line
Other big cities in San Martín Department
Cities near Juanjuí
FAQ
What is the population of Juanjuí?
Juanjuí has a population of 37,715 (city proper, latest official figure via GeoNames), making it the #67 biggest city in Peru.
What region is Juanjuí in?
Juanjuí is located in San Martín Department, Peru.
Is Juanjuí the capital of Peru?
No, the capital of Peru is Lima, about 542 km away.
Sources & notes
Population refers to the city proper (municipal boundaries), not the metropolitan area. Source: GeoNames (CC BY 4.0), retrieved 2026-07-07. Country data: UN World Population Prospects 2024.