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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
  • Like us on Facebook and Instagram
  • 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
today
Attention Soccer Camp Attendees! Because of the current extreme heat warning, the soccer camp has been rescheduled. The camp will be held from Tuesday to Friday this week, from 6pm to 7:30pm We'll see you tomorrow night! @tmobile #ENTRY #FN5GL
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Althoff Catholic High School
1 day ago
Congratulations Tyler Birdsong!!! 2025 – 2026 High School Boys and Girls Scholar All-Americans Announced United Soccer Coaches announced the 2025 – 2026 High School Scholar All-Americans on Thursday. A total of 117 student-athletes including 63 girls and 74 boys seniors were honored based on their cumulative achievement in the classroom as well as on the soccer field during their secondary school careers. tmobile #ENTRY #FN5GL
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  • Fall Open House
    Don't miss our Fall Open House on Sunday, October 25. This event is designed for 7-8 graders as well as transfer student [ ... ]

    Don't miss our Fall Open House on Sunday, October 25. This event is designed for 7-8 graders as well as transfer students to tour our facilities, meet with our teacher and students, and get your questions answered! Make sure to RSVP online. We look forward to seeing you there!

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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!!!

  • Apply Today
    Both 2025-26 and 2026-27 applications are open! We accept transfer students throughout the school year. Apply Today!
  • 8th Grade Placement Test
    Our placement test for 8th graders helps us determine course placement in most of the core subjects; English, mathematic [ ... ]

    Our placement test for 8th graders helps us determine course placement in most of the core subjects; English, mathematics, and social studies. The test is required for all incoming first-year students and is offered throughout the year. 

    Sign up to reserve your spot!

    NEXT TESTING TIMES:
    Sunday, December 6, 1p.m.- incoming first-year students for 2027-28

     

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  • Crusader for a Day Shadow Visit
    Dates for the 2027-28 school year are available now for the first half of the fall semester. Come spend a day as a [ ... ]

    Dates for the 2027-28 school year are available now for the first half of the fall semester. 

    Come spend a day as a Crusader! Sign up today

     

    [ show less ]

  • Financial Aid

    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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FACTS Website Services

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.

Fall Open House