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  • 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, 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 7, 1p.m.- incoming first-year students for 2026-27

    Wednesday, January 14, 3:30p.m.- this test will not be considered for scholarships

  • Crusader for a Day Shadow Visit

    Come spend a day as a Crusader! Sign up today

  • Financial Aid

    Apply for 2025 now! Financial aid for the 2026-27 school year will open in January 2026.

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    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.

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