Built in 1922, the St. Joe school building was originally operated by the church community and later became a public school. It was the third school building built by the parish. In 1965, with the advent of statewide consolidation, the Renwick School District was formed. The district was comprised of St. Joe Elementary in Reno County, and neighboring schools in Andale, Colwich, Garden Plain, Aleppo, and St. Mark, which are located in Sedgwick County. The combination of Reno and Sedgwick County schools is how the Renwick District was named. In 2004, the district elected to close the school building in St. Joe and was contractually obligated to return it to the Diocese of Wichita. St. Joseph Parish quickly acted upon the opportunity and reopened the building as well as the other parish facilities to form the new St. Joseph Catholic School.

The curriculum stresses academic achievement within a Christian community where the child feels that he/she is loved and respected by his/her peers as well as the teacher. Vatican II texts are used so that our theology is in compliance with the bishops of the world. United with each other in meaningful liturgy and prayer, the students can further come to an understanding of the Christian life. At St. Joseph, we are attempting to "teach as Jesus did." The Diocesan curriculum guidelines, consistent with the State of Kansas guidelines, are followed for the teaching of all secular subject areas. The curriculum is marked by current content and fresh approaches to methodology. There is emphasis on principles as well as fact, on learning through problem solving and by precept. We strive to offer a program which makes use of many sources of reading material, a wide variety of audiovisual and technology tools and a multi-text approach to the content areas.

The Catholic school can be successful only if it works with the parents (the Child’s primary educator), in the context of the parish (the basic unit of the Church family) united as one system under the Bishop. Catholic Schools must go beyond instruction to shape the total person and foster a mature adult faith capable of living out one’s baptismal promises. The definitive aim of Catholic education is to form Disciples of Christ. Christ is the foundation of the entire Catholic educational process. Jesus is Master Teacher, who is the Way, the Truth, and the Life. The Catholic School reaches beyond religion class to emphasize the application of Gospel values to all subject areas at every stage of life. Lifelong faith, not mere memorization, is the ultimate goal of the Catholic educational process. To seek truth demands teacher and learner alike to think critically, creatively, and deeply. To grow to love Truth requires a relentless pursuit after the true meaning of life. To learn to live Truth requires a commitment to apply moral principles of the changing and challenging issues of everyday life.

St. Joseph Catholic School, Ost is accredited according to Quality Performance Accreditation of the State of Kansas.