Holy Trinity Catholic High School serves 91 students in grades 9-12, is a member of the National Catholic Educational Association (NCEA).
The student:teacher of Holy Trinity Catholic High School is 8:1 and the school's religious affiliation is Catholic.
Quick Stats (2025)
- Grades: 9-12
- Enrollment: 91 students
- Acceptance rate: 100%
- Average class size: 20 students
- Application Deadline: None / Rolling
- Source: Verified school update
School Overview
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades 9-12
Year Founded
1997
School Calendar
First Day of School
Tue. Aug 12, 2025
Campus Size
31
School Mascot
Celtic
Student Body
Total Students
91 students
Student Body Type
Co-ed
% Students of Color
25%
State avg.: 41%
Students by Grade
Academics and Faculty
Total Classroom Teachers
11 teachers
Student : Teacher Ratio
8:1
National avg.: 13:1
Average Class Size
20 students
School Colors
Blue, Navy Blue, Gold
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Tuition Notes
$12,334 per student
Acceptance Rate
100%
National avg.: 81%
Application URL
Endowment Size
$2 million
Source: Verified school update
Frequently Asked Questions
What schools are Holy Trinity Catholic High School often compared to?
Holy Trinity Catholic High School is often viewed alongside schools like Central Texas Christian School by visitors of our site.
What is the acceptance rate of Holy Trinity Catholic High School?
The acceptance rate of Holy Trinity Catholic High School is 100%, which is higher than the national average of 83%.
When is the application deadline for Holy Trinity Catholic High School?
The application deadline for Holy Trinity Catholic High School is rolling (applications are reviewed as they are received year-round).
Related Schools
Show me:
Popular comparisons: Holy Trinity Catholic High School vs. Central Texas Christian School
People that viewed Holy Trinity Catholic High School also viewed these schools: Memorial Christian Academy and St. Marys Catholic School.
The nearest high school to Holy Trinity Catholic High School is Central Texas Christian School (5.6 miles away)
The nearest elementary school and preschool is St. Marys Catholic School (1.0 miles away)
Show me:
Show me:
School
Location
Miles
Grades
Students
Grades: PK-12 | 217 students 23.3 miles 4001 Trimmier Road
Killeen, TX 76542
(254) 526-5403
Killeen, TX 76542
(254) 526-5403
23.3
PK-12
217
Grades: PK-8 | 175 students 1 miles 1019 S 7th St
Temple, TX 76504
(254) 778-8141
Temple, TX 76504
(254) 778-8141
1
PK-8
175
School Reviews
5 4/21/2023
We love this High School! Three of our children have attended this high school. The students not only learn their faith, but academic rigor and to give back and serve in their community. A small, Catholic high school also allows a student to try all the sports and activities.
5 3/10/2023
Holy Trinity was an answered prayer for our family after we moved out of DFW. After being in an excellent classical charter, our oldest son experienced bad language and out-of-control classrooms for the first time. As we prayed for guidance, I met two families who told me how much they loved Holy Trinity for their teens without my even asking. At first, I thought there was no way we could manage the cost. I am so glad that we took the first steps anyway. Our freshman son has quickly developed a community of friends who also value their Christian faith. We love that his teachers foster meaningful conversations and deeper learning in their classes. HTCHS also genuinely values the arts and extra-curricular activities. Financially it isn`t easy, but we have always felt supported and are so grateful for the generous financial aid that has given our son a faith-filled and academically challenging environment to mature.
5 5/21/2016
HTCHS has been a great school for our children. They have gained Christian leadership skills and their Catholic faith has blossomed by the support of the school. It is refreshing that Holy Trinity teaches and supports the same Catholic and educational values that we tech at home.
5 7/24/2015
Holy Trinity catholic high school is a great coed college preparatory school that educates the whole child. We offer a rigorous academic program and an extensive extra-curricular program. Call the school to schedule a tour.
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