Geography of Peru of 1.57%. Lima forms part of the Largest cities in the Americas, and holds 31.7% of the country's population. The dense concentration of the population size of Peru is 25 people/km² or 57/mi². Lima is a pull factor that draws millions of Peruvians from the suburbs to the capital. This urban inland migration is the result of sprawling around Lima. These sprawling places are known as “Pueblos Jóvenes”. The young towns and Lima make up the metropolitan area that extend 125 miles. The urban growth brings issues to the metropolitan area and the environment. Lima is the most polluted city
Jaén, Peru was 2.3 and its estimated 1999 population was 85,021 inhabitants, with a population density of 139.6 hab/km. Two important features of its population, which is only 30.8% rural and 42.6% under 15 years. By the end of 2012 a population of 170,000 inhabitants was estimated, without including the sector of Fila Alta. Jaén, Peru Jaén is a city which is the capital of the Jaén Province in the Cajamarca Region in Peru, located in the high jungle of northern Peru. It is the seat of the Catholic Apostolic Vicariate of St. Francis Xavier, also known as Apostolic Vicariate of Jaén