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Home » High school abroad » USA » Althoff Catholic High School – DB

About the school

Althoff Catholic High School in Belleville, Illinois, is a private coeducational school offering a broad college-preparatory curriculum grounded in academic excellence and character development.

Located near St. Louis, Belleville provides cultural opportunities and convenient access to transportation through St. Louis Lambert International Airport.

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Quick facts
  • Founded: 1964

  • Niche.com Score: A

  • Students: Co-educational

  • Climate: Cold winters / Warm summers

  • Population: 42,000

  • School Population: 350

  • University Acceptance rate: 99%

Academic excellence

With a 13:1 student–teacher ratio and more than 100 courses across ten departments, the school provides personalized instruction supported by accredited academic programs and modern facilities, including science labs and dedicated arts spaces.

Students earn recognition in athletics, performing arts, and community service, contributing to a strong culture of achievement.

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Campus and subjects

The campus offers updated learning spaces, science laboratories, arts studios, music rooms, and athletic fields, with plans to add a STREAM Lab to expand interdisciplinary learning.

Athletics include a wide range of competitive teams with a history of state championships. Arts programs span visual arts, digital media, music ensembles, and theater, with regional recognition for excellence.

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Althoff Catholic High School works exclusively with Educatius to support international students during their stay in the USA. Learn more about Educatius.