The opening of San Juan High was held in the early 60’s. Class was however short lived due to some operational constraints.

In March 1987, a proposal to re-open the school was conceived by Dr. Eva M. Abante, PSD of Libmanan North District and Mr. Benito Mendoza, the Principal of San Juan Elementary School. The need for building arise but was suspended by the SNAP Election Ban and DECS Order No. 69 s.1982 which orders a moratorium on creation and re-opening a secondary schools. In spite of this odd, an appeal to them, President Corazon C. Aquino and Secretary of educaton, Lourdes Quisumbing requesting for consideration was made by Gov. Luis R. Villafuerte of Camarines Sur. Then on July 28, 1988, permit ton continue the project was issued. On June 13, 1988 classes were organized and held temporarily at San Juan Elementary School buildings. There were then 289 pioneer students.

The following teachers helped and assisted in the enrolment –Mrs. Irene Durante, Mrs. Violeta Santiago of San Juan Elementary School and Mrs. Lourdes Joven of Malansad Elementary School.

Teachers applicants were screened and recommended for appointment. Mr. Dennis H. De Luna ,A.B Philosophy/English; Mrs. Emely B. Esmabe,BSE Biology; Mrs. Evelyn P. Anagao,BSE-Mathematics; Mrs. Teresita D. Basilan,BSE-Home Economics; Mrs. Rosalinda R. Aureus,BSEEnglish; Mrs. Norma N. Bechayda,BSAEd-Agronomy, MS. Liwayway P. Manlangit,BSE-History and the late Ms. Marilyn P. Oporto,BSE-Filipino.

Monthly Salary of these teachers were shouldered by the Provincial Government of Camarines Sur thru Gov. Luis R. Villafuerte since the school stated its operation until the such time that they were incorporated in the National Budget IN 1989.

The school occupies an area of 1.2107 ha. Which was donated by Municipality of Libmanan, thru Hon. Mayor Teodoro V. Dilanco III by virtues of the sale from Mrs. Maria Genova Durante, whose son Mr, Miguel G. Durante was the first adviser of the school’s PTA.

Mr. Dennis De Luna was designated as the Teacher In Charge of the school. He was then able to manage the school for the next four years. Now, we have Dr. Gloria A. Oriño as the Secondary Principal II.

The school is very fortunate to have a partner, the PTCA which gives full support to the programs and projects of the school. The following were elected as PTA/PTCA President;Mr. Laureano L. Abante-1988-1991, Mrs. Soledad Rastrullo-1991-1994, Mrs. Nerry Aga-1994-1998, Mr. Casimero Otero Jr.-1998-2000, Mr. Isidro Nuñezca Jr.-(Chairman)-1998-2000, Mr Rogelio Nano-2000-2003, Mrs. Sonia Frenandez-2003-2004, Mr. Moriel DJ. Tayomora-2004 to present. From being a squatter of the nearby Elementary School, San Juan High School as what it is now has its annex school the Mantalisay High School established in 2002 with Dr. Evelyn Anagao as the TIC.

San Juan High School with its annex school will continue its commitment to serve and would our Youth for them to assists of our community and the nation as well.