The growth in the area exceeded all expectations and the original school building was outgrown quickly. More rooms were added in the basement of the Church and rectory and additional classrooms were added in 1955, 1956, 1958, 1960, 1962 and 1964. Also in 1958, the school gym and lunch room were completed. Today IHM is a co-educational school educating students from the three-year-old program through eighth grade.

The goal of IHM is to provide for personal growth of students, teachers and parents in the context of Christian faith in a contemporary world. IHM strives to create a Christian educational community where human knowledge enlightened by faith is shared in a spirit of freedom and love.

With faith and hope in the future of our church, we strongly recognize and support the importance of Catholic education. We realize that the most effective means available for the continuance of our faith is through the educational process. Our children are guided to experience their individual worth as a person loved by God and as an integral member of the faith community. This is accomplished by providing a loving Christian environment where the gospel message of Jesus is shared and an appreciation of the richness of our Catholic heritage is fostered through all aspects of the academics. We agree that our children are our investment for the future and that they can make a significant difference in society.

IHM follows the curriculum prescribed by the Archdiocese of Baltimore, which is based on the National Standards in each discipline infused with Catholic values. IHM is accredited by the Cognia Accreditation Commission and The Southern Association of Colleges and Schools Council.