Trinity High School is a public high school on a hilltop overlooking Washington, Pennsylvania, United States. Its bell tower has been a landmark in Washington County for over a century. It is designated as a historic public landmark by the Washington County History & Landmarks Foundation.
Serving 1,054 students in grades 9-12, Trinity Sr. High School ranks in the top 20% of all schools in Pennsylvania for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).
The percentage of students achieving proficiency in math is 55-59% (which is higher than the Pennsylvania state average of 38%). The percentage of students achieving proficiency in reading/language arts is 73% (which is higher than the Pennsylvania state average of 55%).
The student-teacher ratio of 15:1 is higher than the Pennsylvania state level of 13:1.
Minority enrollment is 12% of the student body (majority Hispanic and Black), which is lower than the Pennsylvania state average of 40% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 1,054 students
- Student-Teacher Ratio: 15:1
- Minority Enrollment: 12%
- Graduation Rate: 95% (Top 30% in PA)
- Overall Testing Rank: Top 20%
- Math Proficiency: 55-59% (Top 30%)
- Reading Proficiency: 73% (Top 20%)
- Science Proficiency: <50% (Btm 50%)
- Source: National Center for Education Statistics (NCES), PA Dept. of Education
Top Rankings
Trinity Sr. High School ranks among the top 20% of public schools in Pennsylvania for:
Category
Attribute
Overall Rank
Most improved public schools
Reading/Language Arts Proficiency
School Overview
Trinity Sr. High School's student population of 1,054 students has stayed relatively flat over five school years.
The teacher population of 69 teachers has declined by 5% over five school years.
Grades Offered
Grades 9-12
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
1,054 students
Total Classroom Teachers
69 teachers
Year Founded
1925
Colors
Blue and Gold
School Rankings
Trinity Sr. High School ranks within the top 20% of all 2,733 schools in Pennsylvania (based off of combined math and reading proficiency testing data).
The diversity score of Trinity Sr. High School is 0.22, which is less than the diversity score at state average of 0.60. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#464 out of 2733 schools
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
55-59%
38%
Reading/Language Arts Test Scores (% Proficient)
73%
55%
Science Test Scores (% Proficient)
<50%
57%
Student-Teacher Ratio
15:1
13:1
Asian
1%
5%
Hispanic
3%
16%
Black
2%
14%
White
88%
60%
Two or more races
6%
5%
All Ethnic Groups
Graduation Rate
95%
87%
Eligible for Free Lunch
40%
59%
Eligible for Reduced Lunch
3%
2%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), PA Dept. of Education
School Notes
- School Mascot: Hiller
Frequently Asked Questions
What is Trinity Sr. High School's ranking?
Trinity Sr. High School is ranked #464 out of 2,733 schools, which ranks it among the top 20% of public schools in Pennsylvania.
What schools are Trinity Sr. High School often compared to?
Trinity Sr. High Schoolis often viewed alongside schools like Washington High School, Peters Twp High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
55-59% of students have achieved math proficiency (compared to the 38% PA state average), while 73% of students have achieved reading proficiency (compared to the 55% PA state average).
What is the graduation rate of Trinity Sr. High School?
The graduation rate of Trinity Sr. High School is 95%, which is higher than the Pennsylvania state average of 87%.
How many students attend Trinity Sr. High School?
1,054 students attend Trinity Sr. High School.
What is the racial composition of the student body?
88% of Trinity Sr. High School students are White, 6% of students are Two or more races, 3% of students are Hispanic, 2% of students are Black, and 1% of students are Asian.
What is the student-teacher ratio of Trinity Sr. High School?
Trinity Sr. High School has a student ration of 15:1, which is higher than the Pennsylvania state average of 13:1.
What grades does Trinity Sr. High School offer ?
Trinity Sr. High School offers enrollment in grades 9-12 (Supplemental Virtual).
What school district is Trinity Sr. High School part of?
Trinity Sr. High School is part of Trinity Area School District.
School Reviews
Review Trinity Sr. High School. Reviews 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
Recent Articles
When “Free Public School” Still Isn’t Free
Discover the hidden costs of public school in 2026, from supplies and fees to transportation, technology, and extracurricular expenses.
What a District Budget Cut Means for Your Child's School Experience
Learn how district budget cuts can affect class sizes, programs, staffing, transportation, and your child's daily school experience in 2026.
School Closure Risk: What Parents Should Check Before Moving
Learn how parents can assess school closure risk before buying or renting in a district, using enrollment, funding, and boundary data.
