St. Joan of Arc School is a parish school under the auspices of Archbishop Edwin O'Brien, the Archdiocese of Baltimore, and Dr. Ronald Valenti, Superintendent of Catholic Schools.

          The Catholic Church in the Archdiocese of Baltimore experienced tremendous immigrant growth between 1940 and 1960. Birth rates were the high and many converts joined the church. The number of families who moved into the Aberdeen Area to work on the Aberdeen Proving Grounds increased. The town's population grew from 1,525 in 1940 to 9,679 in 1960. St. Joan of Arc community responded to this growing need by building a rectory, convent, church, and school over a thirteen year period. A two floor structure was opened as both school and church in 1954. The Sisters of St. Casimir utilized the first floor to house four grades while the second floor was used as the church during the construction of the new church site. By 1966 when the new church opened, the school had grown to include one class each of First through Eighth Grade.

          In 1993 a new two story wing was added to the school. The first floor new section is home to Kindergarten and First Grade classrooms. The second floor houses a library and a spacious computer lab. An elevator was added to the wing to make the building accessible to a greater number of students, families, and parishioners who often utilize the building for parish meetings.

          There have been numerous changes over the 54 year history of the school. Originally the school primarily served the families of the Aberdeen area. Today however, the school services the needs of families throughout the eastern part of Harford County. St. Joan of Arc School is one of two Catholic elementary schools located in the Harford County region. The school which began with a faculty made up completely of religious sisters now consists of a lay faculty of men and women. In 1997 the two remaining sisters left and the first lay principal was appointed. The dedicated lay faculty is committed to carrying out the religious mission of the school.

          The inclusion of several new programs and the expansion of the middle school concept presented more space challenges. Therefore, the school was increased in size again in 1999 with the addition of a modular unit. St. Joan of Arc School is currently still limited by space constraints. It is the hope now that the church construction project is complete, that efforts may begin again for a building expansion project which will include a gym, additional classrooms, a science lab, and office space.