LUNHS-Sacyud Annex is located in Sacyud, City of San Fernando (La Union), Philippines. At approximately 29 kms. southeast, it is the farthest public secondary school in the city. It's catchment barangays include Apaleng, Cabarsican, Masicong, Pao Sur, Sibuan-Otong of the city and Baraoas Norte and Bancagan of Naguilian, La Union. With a present student population of 125, it is composed of 7 teachers including the Teacher-In-Charge Rodrigo B. Panit, Jr.