History
In 1960, Albert R. Zuroweste, the Bishop of Belleville, met with lay leaders of the Belleville area concerning conditions existing at the Cathedral High School for boys and the Academy of Notre Dame for girls. Since both schools were overcrowded, it was decided that new coed facilities must be provided for the influx of students from the Catholic grade schools. Thus, Althoff Catholic High School came into existence.
Situated on a 37.5 acre tract fronting 5401 West Main Street, Belleville, it was dedicated on August 30, 1964, and named in honor of the previous Bishop, Henry Althoff. The new high school opened its doors on September 3, 1964.
Since that time Althoff Catholic has graduated over 9500 students including 915 Illinois State Scholars, 73 National Merit commended Students (top 5% in nation), and 22 National Merit Finalists (top 1% in the nation).Two students have been honored with the National Achievement Scholarship of Negro Students. Althoff continues its tradition of excellence to this day.