In the late 1970's, Marikina and its surrounding areas were burgeoning communities in need of schools that could serve their growing school-age population. Mrs. Consolacion F. Mallonga, a respected educator in the community, decided to respond to this need. She established a school that was envisioned as an alternative for families who desire an education at par with those offered in exclusive schools, but prefer a co-educational environment. This was named Infant Jesus Academy to honor the Holy Infant in the Manger. Because of her religious training as a former nun of the Servants of the Holy Spirit congregation, she made sure that religious instructions on the Catholic faith is made an integral part of the school curriculum.

Formal operations began in June 1979 with the opening of classes for 127 pre-school pupils. IJA was incorporated formally in February 1980.

Through the years, Infant Jesus Academy has earned a reputation in the community for the quality of instruction in the classrooms, the excellence and discipline of its students, as well as its affordability to families of modest means.

Its Marikina campus is located in the residential community of Rancho Estate, bounded by SSS village. The 3-storey building houses classrooms, libraries, laboratories, multi-purpose rooms, a small chapel, offices and other facilities.

In 1996, a new campus with an area of close to one-hectare was built to serve the needs of students residing in Cogeo and the neighboring areas in Antipolo City. Infant Jesus Academy-Antipolo is envisioned to be one of the leading educational institutions in that community.

The year 2001 witnessed the opening of the IJA Pre-school campus along Gen. Ordonez St., in Marikina Heights. This provides a very stimulating learning environment for children.

The school continues to grow with the establishment of IJA-Kalibo. With this new school, IJA shares its commitment to excellent and relevant basic education with the students of Aklan.