St. Xavier's HSS is located on top of a hill that once towered above and overshadowed the busy town of Mapuça . A number of modernized well-paved roads running up from Mapusa and the surrounding places lead up to the vast lush campus of St. Xavier's Higher Secondary and College.
The HSS section started out as St. Xavier's College in the year 1963 beginning with First Year Arts and First Year Science classes (presently equivalent to Std. XI). In the year 1975-76 the higher secondary school was established as a separate +2 stage of the 10+2+3 scheme of education with late Rev. Fr. Dr. Nicolau G. Pereira as its founder.
In 1990, the HSS was moved to the current new building premises and also operates in the adjoining ‘Arts' building.