Iligan City National High School teaches students in grades seventh through tenth in Iligan City. It is specifically located at Gen Wood St. Mahayahay, Iligan City, 9200 Lanao Del Norte of Northern Mindanao (Region X), Philippines. The school consists of 111 instructional rooms and 9 non-instructional rooms. The school has 7, 121 students with the class size for each classroom ranges from 50-60 plus students.
Iligan City National High School is a complete secondary school which operates three curriculums-Science Curriculum, Special Program for Sports (SPS) and the regular program of the Basic Education Curriculum. It has also a special program under the Alternative Learning System or ALS which caters the out- of -school adults.
Moreover, it is one of oldest and best schools in Iligan City. It is a school that takes part of the most successful professionals in and out of the City. It is a school that survives through the decades of tough economic changes of Iligan City.