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Discover Althoff Catholic High School

The best way to get to know Althoff Catholic High School is to connect with us! Choosing a high school is one of the most important decisions you will make for your child—and we are here to help you feel confident every step of the way.

At Althoff Catholic, we understand that high school is more than academics—it’s about shaping the whole person: mind, body, and spirit. When you entrust your child’s education to us, you are choosing a community that is committed to developing confident, compassionate leaders who are prepared to thrive in college, careers, and life.

Our students are supported by caring teachers who know them by name, challenged by a rigorous and engaging curriculum, and inspired by opportunities to grow through faith, service, arts, athletics, and extracurricular activities. With a 14:1 student-to-teacher ratio, each student receives the individual attention they need to discover their strengths and reach their full potential.

To help you explore whether Althoff Catholic is the right fit for your family, we offer several ways to connect with us:

  • Request More Information – Learn more about our programs, curriculum, and student life.
  • Schedule a Personal Tour or Shadow Day – Experience our welcoming campus, meet our teachers and students, and see what a day in the life of a Crusader is like.
  • Attend an Open House or Admissions Event – Ask questions, meet our community, and see how Althoff Catholic can be the place where your child belongs.

Getting started is easy—just complete our Information Request Form, and our Admissions Team will reach out to help you take the next step.

We look forward to meeting your family and showing you how Althoff Catholic High School can be the place where your child’s future begins.

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5401 W Main St.
Belleville, IL 62226
Main Office: 618.235.1100
Fax: 618.235.9535
info@althoffcatholic.org

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Althoff Catholic High School admits students of any race, color, national, or ethnic origin to all the rights, privileges, programs, and activities generally accorded or made available to students at the school. It does not discriminate on the basis of race, color, national, or ethnic origin in administration of its educational policies, admissions policies, scholarship and loan programs, and athletic and other school-administered programs.

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