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About Us

Established 1868

St. Peter's School History

In 1868, St. Peter’s School had its beginnings in a home behind the First St. Peter’s church.  Since that time the school has grown in different ways, but one thing has stayed the same — a challenging academic environment based on Catholic spirituality and service.  

Starting in 1871, and lasting more than a century, the Sisters of St. Francis of Joliet staffed the school as faculty and principals.  They served the parish community until 2016.

As the population of Mansfield grew, so did the student body.  In its early years, the school educated students until the 8th grade.  In 1924, the school was expanded to include grades 9-12.  Then in 1976, the Montessori preschool started.

During our 150 year history, the school has occupied several buildings.  Our current elementary building opened in 1926 and the high school/junior high building opened in 1958. 

Today, our student-body is diverse with small class sizes, which allow our faculty to provide personal attention to our students.

Our Mission

St. Peter’s School community strives to create an environment of academic excellence built upon Catholic spirituality and service. We seek to establish a challenging learning environment with high expectations while recognizing individual differences and learning styles. We are a community of St. Peter’s families, staff, and parishioners who are actively involved in our students’ learning. In keeping with this statement, the St. Peter’s School Community believes it…

will achieve academic excellence by:

  1. acquiring critical thinking and problem-solving skills necessary for lifelong learning
  2. cultivating learning experiences that support individual students’ strengths and needs
  3. encouraging each student to reach his full potential

will practice Christian spirituality by:

  1. understanding the doctrines of the Catholic Church
  2. modeling the teachings and evangelizing processes of Jesus through prayer, study, work, community service, and sacramental life
  3. nurturing personal faith through the study of Scripture and the reception of the Sacraments

will prepare to be of service to the world by:

  1. recognizing and utilizing the unique gifts given by God to each person
  2. practicing Christian values through philanthropic work
  3. contributing to society by being responsible citizens

Personalized Campus Tour

We welcome prospective parents, alumni, and parishioners the opportunity to take a tour of our school buildings.  You will see first hand our learning environment and how we are working to educate our future leaders.

Please feel free to contact us to schedule a tour.


Graduation at St. Peter’s School is a culmination of their success in our program.  A student can spend up to 15 years attending St. Peter’s School.  More than 95% of our students continue their learning in college or enter military service, earning millions of dollars in college scholarships each year.  

Powerful Alumni

St. Peter’s School alumni have made an impact locally, nationally, and across the globe.  From business owners to leading professionals in their respective fields, many of our graduates credit the foundation they received at St. Peter’s.   Our faculty and staff include several graduates who have found their calling to teach the next generation of leaders.

Alumni Testimonial

St. Peter’s School alumna Madeline Carter ’15 talks about how St. Peter’s helped to prepare her for a career in broadcast journalism.

Karl Kronenberger ’86

Partner, Kronenberger Rosenfeld
San Francisco

Kronenberger is the lead partner in one of the most prominent law firms specializing in internet law, media, and technology.