This study is focused on the acceptability of the developed Geographical Information System for Janosa National High School, an island school located in Janosa, Talim Island in Binangonan, Rizal. In order to obtain reliable results, a questionnaire-checklist was developed which ascertained to fit the existing culture of the subject in terms of their knowledge of the school and the information about it. Data for the school geographical information system was obtained through documentary analysis.