St. John the Baptist School was built in 1955 when Rev. Michael C. Ryan was the pastor of the parish. The opening of the school, however, was delayed by one year due to difficulties in obtaining a community of Sisters to staff it. In August 1956, six Sisters of Mercy came from Ireland and in September 1956, Saint John the Baptist School opened with 200 students in grades one through four. Over the next four years, the school added grades five through eight. The first eighth class graduated in 1961. In 1960 the primary wing was added.

Kindergarten was started in 1981 and in 1986 Daycare began.

The year 1986 saw the start of the Endowment Fund. The fund was established to assist Saint John the Baptist School families with scholarships for needy students, to fund enrichment programs and eventually to offset tuition increases.

One of the school's proudest accomplishments occurred in 1988 when the school received a National Award from the US Department of Education for Excellence in Education. The criteria for this award included a review by the Department of the school philosophy and goals, curriculum, student acheivement, character development and the school's relationship with the community. In 1995 a multi-media room was completed. The school is in the process of upgrading the computer program with monies from grants and donations.

Currently, the school is staffed by two Sisters of Mercy and eight full-time lay teachers.