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THE FUTURE IS YOU!

Our mission at Althoff High School is that we are called by Jesus Christ to educate young people, in the Catholic tradition, to lead successful, faith-filled lives. Our vision for generations to come, is that Althoff High School will be a vibrant, Christ-centered community for young men and women. We will be the school of choice for families who know that academic rigor and faith formation in a small, family-like environment, right here in our own community, is what is best for their child. To accomplish this vision and mission, we rely on the support of our community partners, families, and foundations.

Explore the many ways that you can support the students and staff at Althoff Catholic High School to stay spiritually and fiscally strong.

The Cost To Educate A Student

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Althoff Catholic High School
1 day ago
Happy International Students Day! We love all the cultures and nations represented at Althoff
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Althoff Catholic High School
2 days ago
Bring your donations in before the holidays!
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Althoff Catholic High School
3 days ago
Available to anyone who needs it! Make sure to make your reservation before 11/20.
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Althoff Catholic High School
3 days ago
This week during the 2025 Fall Session of the McKendree University Model United Nations, Junior Sophie Ysursa representing Sierra Leone won an Honorable Mention Award for her work in the World Health Organization and Senior Thomas Liepold, also representing Sierra Leone, won the Superior Delegate Award for his work in the 1st Disarmament Committee. Congratulations to both of these Crusaders and to all of our teammates for taking on the challenge to embody delegates from Sierra Leone and Canada in this international role playing adventure.
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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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