Zumarraga National High School started as an Integrated School wayback 2002. That time, Zumarraga Integrated School was the only complete public secondary school in town and the biggest considering of its student populace among other secondary schools in the whole municipality of Zumarraga. Being a school that is temporarily situated and occupying the mother school Zumarraga Central Elementary School, it was a profound dream of every person that is part of ZIS to nationalize the institution and enjoy the vicinity that we can call our own. And that dream did not seem to be impossible when ZIS became a national school in 2004. However, the community of ZIS High School department was not aware about this matter. Until 2012, when the school principal Mr. Edwin Rodulfa found out that ZIS is already nationalized for almost 8 years then. And finally, Zumarraga Integrated School was converted to Zumarraga National High School.

            At present, ZNHS is in its location with the following boundaries; corner of Oli-oli St. and Cozin St. Barangay Poblacion II of the Municipality of Zumarraga, Second Legislative District in the Province of Samar, Samar Division, region VIII. It has a total area of 45,000 sq.m. and has a total population of 429 students from Grade Seven to Grade 10 S.Y. 2016-2017 with 17 Junior High School and 4 Senior High School nationally-funded teaching personnel under the administration of Mr. Bienvenido A. Abaigar as the School Head. It caters the exit point of Arteche Park featuring the Old Spanish Belfry of Zumarraga which brings pride to its people, from its entry point in the heart of the town the Municipal Hall and the port.