About Trinity | Overview

Trinity is a comfortable feeling. It’s a lifetime of brotherhood. It’s the cultivation of talent. It’s inspiration to be a compassionate person. It’s fun and enthusiasm for learning. It’s words of encouragement. It’s the gateway to adulthood. It’s a second home.


Learn More About:

Dr. Robert J. Mullen, President
Joseph M. Porter, V.P. for Advancement
Larry Castagno, Director of Finance and Administration
Daniel J. Zoeller, Principal


Trinity's Senior Leadership Team


Our History

Trinity first opened its doors in 1953, when Archbishop John Floersh anticipated the growth of Louisville's eastern suburbs by choosing the site of Holy Trinity School, a former Catholic church and grade school in St. Matthews. That first freshman class numbered 106 students. With the Catholic tradition of teaching and learning firmly embedded in the buildings that became Trinity, the school is now more like a small college campus.

“The years you spend in high school are very important. They will affect your entire life.”

—Monsignor Alfred Steinhauser, First Principal, Trinity High School 

Our Mission

Trinity is a Catholic, college-preparatory high school, forming men of faith and men of character. 


Our School

Trinity is a Catholic high school which admits young men of any race, religion, color, nationality and/or ethnic origin to all of the rights, privileges, programs and activities generally made available to students at the school. It does not discriminate on the basis of race, color or national and ethnic origin, or disability (if with reasonable accommodation the student can meet the requirements of Trinity’s course of study) in the administration of its educational policies, admissions policies, scholarship and aid programs or other school-administered programs.

The Archdiocese of Louisville sponsors the school, which is governed by a board of directors representing a broad cross-section of the community. The United States Department of Education has recognized Trinity as a School of Excellence. Trinity is accredited by AdvancED, the Department of Education of the Commonwealth of Kentucky and is a member of the National Catholic Educational Association. 

Students are required to take the Catholic High School Placement Test in December for admission into Trinity High School and placement into one of Trinity’s Programs of Study.

Choosing Trinity is a choice of values. Flowing from our Catholic tradition, our Code of Conduct is built upon the values of courtesy, honesty, respect and cooperation. Trinity faculty and staff work to see that our graduates instill these core values for life. Trinity’s disciplined environment allows teachers to maximize their teaching and students to maximize learning. Classes function in an orderly environment with very few distractions and students are held to the highest possible expectations. 

Our Student Body

Trinity prepares its diverse student body for the challenges of college, other forms of post-secondary education and the workforce. Its purpose is to foster the personal growth and maturity necessary to live successfully in a complex society.

Our student population is comprised of a diverse group of learners. The school is a valuable regional asset, comprising young men from Louisville and surrounding counties, who come from more than 70 elementary schools.

We remain dedicated to the idea that all students, regardless of academic background and ability, have a right to an education suited to their needs and aspirations. To date, more than 15,200 young men have earned a Trinity diploma. 

Trinity has been a leader in the area of inclusiveness for many decades, and we continue to aggressively plan for our future. Tuition for the current year covers about 80 percent of the total cost of educating our students. The balance is made up through successful fundraising. It is fair to say that all Trinity students receive financial aid through our efforts. More than $2.8 million in need-based aid will be distributed during the 2016-17 year. Our goal is to raise the amount of financial aid available to you each year.

“Our mission from the day we opened has been to serve the broadest population possible. We are proud of the academic, geographic, racial, ethnic and economic diversity found in our school. Our doors will remain wide open for those who seek a caring community of teachers and learners, rooted in the Gospel message of Jesus Christ.”

—Robert J. Mullen Ed.D., President, Trinity High School

Our Accomplishments

One indicator of the quality of Trinity’s programs is the extraordinarily high number of university acceptances. More than 98 percent of the Class of 2016 is pursuing higher education and our graduates enroll in some of the most prestigious institutions in the country including Harvard, Dartmouth, Duke, Johns Hopkins, Stanford, Notre Dame, Vanderbilt, the Academies and Yale.

Our graduates have also been those who were given little chance for high school success, but instead discovered the foundation for a lifetime of achievement. We have never placed artificial limits on those who score too low or too high on the Placement Test. Instead, you will find us to be an open, caring and accepting community of educators and learners.

The Class of 2016 is no exception. Their accomplishments are lengthy, including earning more than $23 million in college scholarship awards, continuing a three-year span of all-time high composite marks on the ACT and gaining acceptance at more than 142 colleges and universities in the U.S. and the District of Columbia.

Our Facilities

Our facilities are unlike any other high school. Students enjoy a modern campus, much like what they will encounter in college. We have invested over $31 million during the last two decades to build a greaT place to spend a high school career. Strategic planning over the last two decades has allowed us to attain 99 percent completion of our campus plan.

Trinity’s main campus and 120-acre conservation sanctuary supports the school’s broad range of curricular and co-curricular offerings. More than 1,400 students can be accommodated in the 11 buildings found on site. In addition to modern classrooms and centralized office space, the school has a wealth of specialized facilities, including: 

  • A beautiful chapel

  • Modern library media center
  • Nine computer labs
  • Television studio
  • Eight science laboratories
  • 300-seat auditorium
  • Fine arts complex with specialized studios, work rooms and music rooms
  • Journalism production rooms and a darkroom
  • Spacious campus store
  • Large convocation hall
  • Full-service kitchen and cafeteria
  • Athletic facilities include two gymnasiums, a 4,500-seat stadium, a fully equipped field house and weight room, and an athletic field.