For the most part, the area laid barren until the late 1970s, when there was a sudden influx of families coming from the central and southern parts of Mexico in search of land. Despite its proximity, there was no infrastructure for basic services including schooling for children. Many people bought ejido land causing legal problems. The federal government had to step in to install basic services and regularize the property rights of more than 77,000 parcels of ejido land that was sold. However, the area did not become a separate municipality until 1994. In the census of 2005 the population of Xico was 331,321 people.