基本資料 | Information
Isabela National High School is a public educational institution established in Ilagan, Isabela, Philippines. It was founded in 1904, making it the oldest public high school in the Cagayan Valley region. It was named Isabela High School before it was converted into a national high school in 1982. It is the only educational institution offering the Open High School Program in the entire Cagayan Valley region. As of 2014, the school is administered by Denizon P. Domingo, the head of the Schools Division of Ilagan. The school's principal is Marietta R. Lozada.