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Find Althoff Catholic High School in Belleville, IL 62226 to get information on admission processes, tuition fees, teacher-student ratio, and curriculums.

  • Althoff Catholic High School
  • 5401 West Main Street, Belleville, IL 62226
  • 618-235-1100
  • Mon: 8:00 AM - 4:00 PM
    Tue: 8:00 AM - 4:00 PM
    Wed: 8:00 AM - 4:00 PM
    Thu: 8:00 AM - 4:00 PM
    Fri: 8:00 AM - 4:00 PM
    Sat: Closed
    Sun: Closed

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