Quintero is a Chilean city and commune in Valparaíso Province, in the Valparaíso Region, 30 kilometers north of Valparaíso. The commune …Quintero is a Chilean city and commune in Valparaíso Province, in the Valparaíso Region, 30 kilometers north of Valparaíso. The commune spans an area of 147.5 km². It was the first port in the country, created during the expedition of Diego de Almagro. Fundición Ventanas and other heavy industries are located in the commune of Quintero.