The department of Chinandega is 4929 sqkm in area and has a population of 378,970 distributed among thirteen municipalities: Chinandega (department seat), El Viejo, Corinto, Chichigalpa, Posoltega, El Realejo, Puerto Morazán, Villanueva, Somotillo, Santo Tomás del Norte, San Juan de Cinco Pinos, San Pedro del Norte and San Francisco del Norte.