Ahuachapán is a department of El Salvador in the west of the country. The capital is Ahuachapán. In the south, it has the Apaneca-Ilamatepec Range and the Cerro Grande de Apaneca. It has a population of over 360,000 people. The Ahuachapán Department was created by the Legislative Decree of February 9, 1869, under the administration of Francisco D…Ahuachapán is a department of El Salvador in the west of the country. The capital is Ahuachapán. In the south, it has the Apaneca-Ilamatepec Range and the Cerro Grande de Apaneca. It has a population of over 360,000 people. The Ahuachapán Department was created by the Legislative Decree of February 9, 1869, under the administration of Francisco Dueñas.