[2] The school serves students from pre-kindergarten to 12th grade.

St. Joseph High School was founded in 1958 by the School Sisters of the Third Order of St Francis and the Catholic parishes of Kenosha.

[3] Accreditation is through AdvancED, which consists of North Central Association Commission on Acccreditation and School Improvement (NCA CASI), Northwest Accreditation Commission (NWAC) and Southern Association of Colleges and School Council on Accreditation and School Improvement (SACS CASI).

St. Joseph Catholic Academy is operated by the Archdiocese of Milwaukee and supported by all Kenosha area parishes.

The school receives support from all 10 Catholic parishes in Kenosha and Pleasant Prairie: Our Lady of Mount Carmel, Our Lady of the Holy Rosary of Pompeii, St. Anne Catholic Church, St. Anthony of Padua, St. Elizabeth Catholic Church, St. James the Apostle, St. Mary Catholic Church, St. Mark the Evangelist, St. Peter Parish, and St. Therese of Lisieux.