Althoff is a diocesan Catholic high school serving students who primarily desire to pursue, in a Catholic environment, a strong academic program that will prepare them for post-secondary education.
The school's strength and its future lie in its Catholic heritage, the diverse backgrounds of its students and faculty, and its high academic standards.
Through a process of faith formation and challenging educational experiences, faculty and staff strive to empower students not only with academic and technological skills, but also with skills for living.
Members of the Althoff Catholic High School community share a deep and abiding respect for the individual and are committed to the spiritual, moral, physical, social and intellectual development of the person.
We foster the crusader spirit that exists in each of us to serve God and neighbor.
Quick Stats (2025)
- Top Ranked IL School
- Grades: 9-12
- Enrollment: 323 students
- Yearly Tuition: $8,262
- Acceptance rate: 20%
- Average class size: 15 students
- Application Deadline: None / Rolling
- Source: Verified school update
Top Rankings
Althoff Catholic High School ranks among the top 20% of private schools in Illinois for:
Category
Attribute
Acceptance Rate
Student Body
Sports offered
School Overview
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades 9-12
ADD/ADHD Support
Yes
Year Founded
1965
School Calendar
First Day of School
Fri. Aug 15, 2025
Last Day of School
Mon. May 25, 2026
School Mascot
Crusaders
Student Body
Total Students
323 students
Student Body Type
Co-ed
% Students of Color
30%
State avg.: 34%
Students by Grade
Academics and Faculty
Total Classroom Teachers
28 teachers
Student : Teacher Ratio
12:1
National avg.: 13:1
Average Class Size
15 students
Number of AP Courses
4 courses
List of Courses Offered
Matriculation DataMatric. Data
Classroom Dress Code
Formal
Skirts and khaki pants, polos
School Colors
Gold, Blue, Navy Blue
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Yearly Tuition Cost
Tuition Notes
Different tuition rate for out of Diocese and Non-Catholic students
% on Financial Aid
27%
Average Financial Aid Grant
$1,500
Acceptance Rate
20%
National avg.: 81%
Admissions Director
Reeta Piirala-Skoglund
Application URL
Sports
Total Sports Offered
15 sports
Sports
Extracurriculars
Total ExtracurricularsTotal Extra-curric.
9 extracurriculars
ExtracurricularsExtra-curric.
Club or Organization:
BASIC, Fellowship of Christian Athletes, Spanish Club
Arts and Music Programs:
Band and Choir, Theater Program
Recreational Athletic Programs:
Chess Team, E Sports, Model UN, Scholar Bowl
BASIC, Fellowship of Christian Athletes, Spanish Club
Arts and Music Programs:
Band and Choir, Theater Program
Recreational Athletic Programs:
Chess Team, E Sports, Model UN, Scholar Bowl
School Notes
- Althoff is a diocesan Catholic high school serving students who primarily desire to pursue, in a Catholic environment, a strong academic program that will prepare them for post-secondary education. The school's strength and its future lie in its Catholic heritage, the diverse backgrounds of its students and faculty, and its high academic standards. Through a process of faith formation and challenging educational experiences, faculty and staff strive to empower students not only with academic and technological skills, but also with skills for living. Members of the Althoff Catholic High School community share a deep and abiding respect for the individual and are committed to the spiritual, moral, physical, social and intellectual development of the person. We foster the crusader spirit that exists in each of us to serve God and neighbor.
Source: Verified school update
Frequently Asked Questions
How much does Althoff Catholic High School cost?
Althoff Catholic High School's tuition is approximately $8,262 for private students.
What schools are Althoff Catholic High School often compared to?
Althoff Catholic High School is often viewed alongside schools like Gibault Catholic by visitors of our site.
What is the acceptance rate of Althoff Catholic High School?
The acceptance rate of Althoff Catholic High School is 20%, which is lower than the national average of 84%. Althoff Catholic High School's acceptance rate is ranked among the top private schools in Illinois with low acceptance rates.
What sports does Althoff Catholic High School offer?
Althoff Catholic High School offers 15 interscholastic sports: Baseball, Basketball, Bowling, Cheering, Cross Country, Dance, Football, Golf, Soccer, Softball, Swimming, Tennis, Track and Field, Volleyball and Wrestling. Althoff Catholic High School is ranked as one of the top 20% of private schools in Illinois for most sports offered.
What is Althoff Catholic High School's ranking?
Althoff Catholic High School ranks among the top 20% of private schools in Illinois for: Lowest average acceptance rates, Largest student body and Most sports offered.
When is the application deadline for Althoff Catholic High School?
The application deadline for Althoff Catholic High School is rolling (applications are reviewed as they are received year-round).
Related Schools
Show me:
Popular comparisons: Althoff Catholic High School vs. Gibault Catholic
People that viewed Althoff Catholic High School also viewed these schools: Peoria Notre Dame High School, Illiana Christian High School, Aquin Catholic Junior Senior High School, Christian Heritage Academy and Lake Forest Academy.
The nearest high school to Althoff Catholic High School is Governor French Academy (3.3 miles away)
The nearest elementary school is St. Henry Elementary School (0.1 miles away)
The nearest preschool is Our Lady Queen Of Peace School (0.4 miles away)
Show me:
Show me:
School
Location
Miles
Grades
Students
Grades: 9-12 | 703 students 153.8 miles 5105 N Sheridan Road
Peoria, IL 61614
(309) 691-8741
Peoria, IL 61614
(309) 691-8741
153.8
9-12
703
Grades: 9-12 | 474 students 246.1 miles 2261 Indiana Ave
Lansing, IL 60438
(219) 558-7066
Lansing, IL 60438
(219) 558-7066
246.1
9-12
474
Aquin Catholic Junior Senior High School
(Catholic)
Grades: PK-12 | 239 students 259.3 miles 1419 S Galena Ave
Freeport, IL 61032
(815) 235-3154
Freeport, IL 61032
(815) 235-3154
259.3
PK-12
239
Grades: PK-12 | 437 students 272.3 miles 315 Waukegan Road
Northfield, IL 60093
(847) 446-5252
Northfield, IL 60093
(847) 446-5252
272.3
PK-12
437
Grades: 9-12 | 452 students 279.1 miles 1500 W Kennedy Rd
Lake Forest, IL 60045
(847) 615-3257
Lake Forest, IL 60045
(847) 615-3257
279.1
9-12
452
School Reviews
Endorse Althoff Catholic High School. Endorsements should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
- Academic or athletic awards
Recent Articles
Podcasts That Will Change the Way You Think About Education
This article highlights a curated selection of podcasts that offer thought-provoking discussions, expert insights, and innovative ideas on various aspects of education. From exploring new teaching methods and technologies to discussing policy changes and social issues, these podcasts provide a wealth of knowledge and inspiration for anyone interested in education. Each podcast is briefly described, highlighting its unique focus and tone.
For-profit vs. Not-for-profit Schools
This comprehensive guide explores the differences between for-profit and not-for-profit private schools, discussing their organizational structures, advantages, and key considerations for parents. It emphasizes that a school's success is determined by its educational quality and management rather than its profit status.
2023-24 Best SSAT Prep Courses Reviewed
This article reviews the top SSAT prep courses, including Test Innovators, Enrollment Management Association (EMA), Princeton Review, Ivy Global, and Kaplan. Each course is evaluated based on its price, in-person and online services, officially licensed materials, instant normative scoring, and free trial options. We'll dive into the features and benefits of each course, helping you understand which one best fits your student's needs and learning style.
