Pioneer Catholic settlers in the Beloit area had a deep concern for the education of their children.

In the fall of 1879 with 15 students, St. John's Catholic School was founded in a small one room building.

By 1900, enrollment reached 140 students thus creating a need for a larger more structured school building.

Local farmers quarried and hauled stone and sand to the present site.

[citation needed] In March 2013, St. John's was selected as the Catholic School of the Month.