Lima (Central Lima) and Lima Sur (South Lima). The largest areas are Lima Norte with 2,475,432 people and Lima Este with 2,619,814 people, including the largest single district San Juan de Lurigancho, which hosts 1 million people. Lima is considered a "young" city. According to INEI, by mid 2014 the age distribution in Lima was: 24.3% between 0 and 14, 27.2% between 15 and 29, 22.5% between 30 and 44, 15.4% between 45 and 59 and 10.6% above 60. Migration to Lima from the rest of Peru is substantial. In 2013, 3,480,000 people reported arriving from other regions. This represents almost
Lima Province territories of present-day Lima, Callao and Ica regions, and the provinces of Casma, Huarmey and Santa, which later would be part of the La Costa Department. The department was further subdivided as time passed but the Lima Province kept being part of it. Due to the massive migration from other areas of the country, the need to separate the province from the rest of the department was forecast by experts. In 2002, the new regionalization law passed by President Alejandro Toledo made the Lima Province a separate entity from the rest of the newly created Lima Region. The province is