Almaguer is a town and municipality in the Cauca Department, Colombia. Founded in 1551 by Vasco de Guzmán and Alonso de Fuenmayor, tâĤAlmaguer is a town and municipality in the Cauca Department, Colombia. Founded in 1551 by Vasco de Guzmán and Alonso de Fuenmayor, the municipality covers an area of 520 km² and has a population of 21,300. The population is primarily engaged in agriculture.