Mullen High School is a private, co-educational school in southwest Denver which provides a Catholic, college-prep curriculum since 1931.
Our Lasallian philosophy of educating is dedicated to exemplary teaching, scholastic rigor and outstanding care for all students.
Quick Stats (2023-24)
- Top Ranked CO School
- Grades: 9-12
- Enrollment: 860 students
- Yearly Tuition: $18,200
- Application Deadline: Dec. 14
- Source: Verified school update
Upcoming Events
Top Rankings
Mullen High School ranks among the top 20% of private schools in Colorado for:
Category
Attribute
Student Body
AP Courses
Sports offered
School History
School Overview
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades 9-12
Year Founded
1931
School Calendar
Student Body
Total Students
860 students
Student Body Type
Co-ed
% Students of Color
20%
State avg.: 24%
Students by Grade

Academics and Faculty
Total Classroom Teachers
78 teachers
Student : Teacher Ratio
11:1
National avg.: 13:1
Number of AP Courses
18 courses
List of Courses Offered
Classroom Dress Code
Casual
Mullen embroidered Polos, khaki or navy bottoms
Mullen embroidered Polos, khaki or navy bottoms
Tuition and Acceptance Rate
Admission Deadline
Dec. 14
Yearly Tuition Cost
$18,200
Tuition Notes
Includes the $400 registration fee.
% on Financial Aid
38%
Admissions Director
Lindsay Hooper
Admissions Associate
Katie Weaver
Sports
Total Sports Offered
17 sports
Sports
School Notes
- Mullen High School is a private, co-educational school in southwest Denver which provides a Catholic, college-prep curriculum since 1931. Our Lasallian philosophy of educating is dedicated to exemplary teaching, scholastic rigor and outstanding care for all students.
Source: Verified school update
Frequently Asked Questions
How much does Mullen High School cost?
Mullen High School's tuition is approximately $18,200 for private students.
What sports does Mullen High School offer?
Mullen High School offers 17 interscholastic sports: Baseball, Basketball, Cheering, Cross Country, Dance, Diving, Football, Golf, Ice Hockey, Lacrosse, Soccer, Softball, Swimming, Tennis, Track and Field, Volleyball and Wrestling. Mullen High School is ranked as one of the top 20% of private schools in Colorado for most sports offered.
What is Mullen High School's ranking?
Mullen High School ranks among the top 20% of private schools in Colorado for: Largest student body, Most AP courses offered, Most sports offered and Oldest founding date.
When is the application deadline for Mullen High School?
The application deadline for Mullen High School is Dec. 14.
School Reviews
5 10/7/2020
Mullen High School has been doing an incredible job accommodating the students and teachers during the COVID 19 pandemic. It has been tough, but I appreciate the work they are doing to keep us safe and bringing our community back together.
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