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Always a Crusader

Always a Crusader

WELCOME HOME!

YOU will always be a Crusader!  You are our legacy.  You make a difference.  You inspire us by who you are, what you do and what you care about. You are changing lives and changing the world.  You make us proud.  We are stronger because of YOU!

Althoff Catholic strives to serve you no matter what your stage of life.  We hope to continue our relationship with you for many years to come.  Our goal is to help you reconnect with classmates and network with other alums and families and engage our current students. So please keep us updated about where you are and all the new things in your life so we can stay connected.

WAYS TO STAY CONNECTED

  • Attend an Alumni Event
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  • Support our faculty or help provide financial assistance by giving to the Annual Fund
  • Become a Volunteer
  • Serve on the Young Alumni Committee

We would love to hear from you, so please contact us at advancement@althoffcatholic.org!

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Althoff Catholic High School
1 day ago
Althoff Catholic High School’s Prep for National Exam Program is designed to help students feel confident, prepared, and ready to succeed on important national exams. Students will gain valuable strategies, practice opportunities, and academic support in a focused and encouraging environment. Spaces are limited — register today! https://givebutter.com/althoffs-prep-for-national-exam-program-czucql
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Althoff Catholic High School
2 days ago
We are switching to our summer hours! Offices will be open M-Th 8 a.m. to 2 p.m. We will be fully closed starting 7/6 through 7/10 Have a great summer!!!
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  • Crusader Summer Camps

    Check out the Crusader Summer Camps available this summer! New camps added weekly. We hope you can join us!!!

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    Both 2025-26 and 2026-27 applications are open! We accept transfer students throughout the school year. Apply Today!
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    Apply for 2026 now!

  • Get Involved
    See how you can become part of our volunteer community and get involved with different groups and projects!
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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.

Summer Camps!