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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
Due to the current weather conditions and considering the distance our staff and students have to travel, Althoff Catholic High School will have a Remote Learning Day Monday, January 26, 2026. Everyone stay safe and warm!
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Althoff Catholic High School
1 day ago
Spring Blood Drive! It’s because of donors like YOU that ImpactLife is continuously able to provide lifesaving blood products to patients in need for the past 50 years! Althoff Catholic High School Sponsored by ACHS Student Council Monday, February 2 8:30 AM - 1:30 PM Heritage Hall 5401 West Main St Sign up now at https://login.bloodcenter.org/donor/schedules/drive_schedule/140751
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Althoff Catholic High School
1 day ago
Fuel. Recover. Perform. We are happy to announce our Student-Athlete Nutrition Bar Program. The program will support our students' post-workout recovery. 📅 Program Details • Training Schedule: 3 days per week • Duration: 16 weeks (1 semester) 🧃 Why Join? ✔️ Convenient post-workout recovery ✔️ Supports muscle repair and performance ✔️ Encourages healthy nutrition habits ✔️ Tastes great and ready to go after each session Current Families: check out your email for more details!
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Althoff Catholic High School
2 days ago
We look forward to celebrating Catholic Schools Week from Monday, January 26th to Friday, January 30, 2026. Our theme for this year is "Faith. Excellence. Service." Sunday: Celebrating Your Parish Monday: Celebrating Your Community Tuesday: Celebrating Your Students Wednesday: Celebrating the Nation Thursday: Celebrating Vocations Friday: Celebrating Faculty, Staff, and Volunteers Saturday: Celebrating Families Student Council helps to sponsor Catholic Schools Week, and we plan to celebrate in the following ways: 1. Out of Uniform If students choose not to follow the out-of-uniform theme, they must be in regular school uniform. Dress Themes: Monday- Dress like someone who serves the community (doctor, police, firefighter, etc….) Tuesday – ACHS Jersey’s Wednesday- Red, White, & Blue Thursday - Black Out Friday - Dress like a faculty member 2. Tuesday – Ice cream served at Lunch (Dilly bars from Dairy Queen) 3. Wednesday –Breakfast for students prepared by the faculty 4 Friday – We will be on a Pep Rally Schedule and have a Basketball game between the Faculty and Students. We will be serving a Chick-fil-A sandwich at lunch.
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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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