IC Catholic Prep (ICCP) is a

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Roman Catholic The Catholic Church (), also known as the Roman Catholic Church, is the largest Christian church, with 1.27 to 1.41 billion baptized Catholics worldwide as of 2025. It is among the world's oldest and largest international institut ...

high school A secondary school, high school, or senior school, is an institution that provides secondary education. Some secondary schools provide both ''lower secondary education'' (ages 11 to 14) and ''upper secondary education'' (ages 14 to 18), i.e., ...

Elmhurst, Illinois Elmhurst is a city in DuPage County, Illinois, DuPage and Cook County, Illinois, Cook counties in the U.S. state of Illinois. It is a western suburb of Chicago. The population was 45,786 at the 2020 United States census, 2020 census. History M ...

, and located in the

Roman Catholic Diocese of Joliet in Illinois The Diocese of Joliet in Illinois () is a Latin Church ecclesiastical territory, or diocese, of the Catholic Church in Illinois in the United States. It is a suffragan diocese in the ecclesiastical province of the metropolitan Archdiocese of Chic ...

. When opened in 1936, it was the only co-educational secondary institution in DuPage County. The Sisters of St. Agnes have offered a curriculum incorporating a college prep focus since its founding. It is the oldest Catholic,

coeducational Mixed-sex education, also known as mixed-gender education, co-education, or coeducation (abbreviated to co-ed or coed), is a system of education where males and females are educated together. Whereas single-sex education was more common up to ...

high school in

DuPage County, Illinois DuPage County ( ) is a County (United States), county in the U.S. state of Illinois, and one of the collar counties of the Chicago metropolitan area. As of the 2020 United States census, 2020 census, the population was 932,877, making it List of ...

. It is also the only parish-based high school in DuPage County. In January 2013, IC High School was renamed IC Catholic Prep to reflect the school's pursuit and teaching of Catholic values. Pulling from more than 38 different suburban communities, ICCP has an average class size 19:1.

Courses

IC Catholic Prep offers 25+ Advanced Placement and Honors classes in addition to its regular course offerings IC Catholic prep has the best Fine Arts program (Music, Art, and Drama). ICCP offers extracurricular activities including National Honor Society, Art club, Book club, Engineering Club, Theater, Math Team, Student Council, and Yearbook.

Athletics

The football program has won six IHSA State Championships spanning from 2002 to 2022. Years (and divisions) of championships: 2002(3A), 2008(2A), 2016(3A), 2017(3A), 2018(4A), 2022(3A). In 2008, the Immaculate Conception football team became the first 4 loss football team in IHSA history to win a state championship, winning the class 2a football state championship. The 2008 football state championship squad posted a record of 10 wins and 4 losses, winning their final 6 games. The dance team won state in 2012 and placed second in state in 2013. In 2016 the dance team also placed top ten at the IHSA state competition and placed first and second at every competition they attended. The volleyball Team won the IHSA class 2A State Championship in 2013. In 2018, the wrestling team qualified for the IHSA Class 1A Team State Finals for the first time in school history. In 2023, the girls soccer team took fourth place in IHSA Class 1A.

Notable alumni

Edwin Feulner Edwin John Feulner Jr. (born August 12, 1941) is an American political scientist, former think tank executive, Congressional aide, and foreign consultant who co-founded The Heritage Foundation, a conservative think tank in 1973. He served as The ...

, co-founder and former president,

The Heritage Foundation The Heritage Foundation (or simply Heritage) is an American Conservatism in the United States, conservative think tank based in Washington, D.C. Founded in 1973, it took a leading role in the conservative movement in the 1980s during the Presi ...

* Bob McMillen, former indoor arena football player and head coach *

Skip Pitlock Lee Patrick Thomas "Skip" Pitlock (born November 6, 1947) is an American former Major League Baseball pitcher. A left-hander noted for his unusual wind-up, he had a "herky-jerky" motion which deceived major league batters, and led to 124 career ...

, former professional baseball player,

Chicago White Sox The Chicago White Sox are an American professional baseball team based in Chicago. The White Sox compete in Major League Baseball (MLB) as a member club of the American League (AL) American League Central, Central Division. The club plays its ...

and

San Francisco Giants The San Francisco Giants are an American professional baseball team based in San Francisco. The Giants compete in Major League Baseball (MLB) as a member club of the National League (baseball), National League (NL) National League West, West Div ...

Notes and references

{{authority control Roman Catholic Diocese of Joliet in Illinois Catholic secondary schools in Illinois Elmhurst, Illinois Educational institutions established in 1936 Schools in DuPage County, Illinois 1936 establishments in Illinois