The increasing student population led to the construction of classrooms at the old Municipal Gym, presently known as Freedom Park.

A 20,003 square meter lot was donated by Mr. and Mrs. Climaco Maurillo, and Tagum Municipal High School relocated to its present location on October 4, 1982.

In 1986, Superintendent Teofilo Gomez requested the municipal government to donate the site to the Department of Education and Culture (DECS).

The approval was granted during the tenure of Superintendent Prudencio Mabanglo and Mayor Victorio Suaybaguio Jr., resulting in the issuance of a land title on June 19, 1989.

On February 14, 2006, on its 39th anniversary, under the leadership of Mayor Rey T. Uy and the Department of Education, Tagum National High School was converted into Tagum City National High School, becoming the premier secondary education institution in the province of Davao del Norte.

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