Triad High School is a high school located in Troy, Illinois. Triad serves the communities of Troy, St. Jacob, and Marine, Illinois, and small portions of Collinsville, Maryville, Glen Carbon, Edwardsville and Highland. The school district has a total area of 121.5 square miles.
Serving 1,218 students in grades 9-12, Triad High School ranks in the top 30% of all schools in Illinois for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).
The percentage of students achieving proficiency in math is 37% (which is higher than the Illinois state average of 27%). The percentage of students achieving proficiency in reading/language arts is 35% (which is higher than the Illinois state average of 30%).
The student-teacher ratio of 16:1 is higher than the Illinois state level of 13:1.
Minority enrollment is 10% of the student body (majority Hispanic and Black), which is lower than the Illinois state average of 55% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 1,218 students
- Student-Teacher Ratio: 16:1
- Minority Enrollment: 10%
- Graduation Rate: 97% (Top 1% in IL)
- Overall Testing Rank: Top 30%
- Math Proficiency: 37% (Top 30%)
- Reading Proficiency: 35% (Top 50%)
- Science Proficiency: 72% (Top 20%)
- Attendance Zone: Triad High School serves the entire district of Troy, IL, covering an attendance zone of approximately 122 square miles. Most students can expect a typical drive of 10-15 minutes, with the furthest edge of the zone located about 10.2 miles from the school.
- Source: National Center for Education Statistics (NCES), IL Dept. of Education
Top Rankings
Triad High School ranks among the top 20% of public schools in Illinois for:
Category
Attribute
Most improved public schools
Science Proficiency
Graduation Rate
School Overview
Triad High School's student population of 1,218 students has stayed relatively flat over five school years.
The teacher population of 75 teachers has grown by 8% over five school years.
Grades Offered
Grades 9-12
Total Students
1,218 students
Total Classroom Teachers
75 teachers
Year Founded
1999
School Rankings
Triad High School ranks within the top 30% of all 3,542 schools in Illinois (based off of combined math and reading proficiency testing data).
The diversity score of Triad High School is 0.19, which is less than the diversity score at state average of 0.70. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#955 out of 3542 schools
(Top 30%)
(Top 30%)
Math Test Scores (% Proficient)
37%
27%
Reading/Language Arts Test Scores (% Proficient)
35%
30%
Science Test Scores (% Proficient)
72%
50%
Student-Teacher Ratio
16:1
13:1
American Indian
n/a
n/a
Asian
1%
6%
Hispanic
3%
29%
Black
2%
16%
White
90%
45%
Hawaiian
n/a
n/a
Two or more races
4%
4%
All Ethnic Groups
Graduation Rate
97%
87%
Chronically Absent Students
(22-23)16.6%
29.7%
Eligible for Free Lunch
13%
43%
Eligible for Reduced Lunch
4%
4%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), IL Dept. of Education
School Notes
- School Mascot: Knight
Frequently Asked Questions
What is Triad High School's ranking?
Triad High School is ranked #955 out of 3,542 schools, which ranks it among the top 30% of public schools in Illinois.
What schools are Triad High School often compared to?
Triad High Schoolis often viewed alongside schools like Edwardsville High School, Highland High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
37% of students have achieved math proficiency (compared to the 27% IL state average), while 35% of students have achieved reading proficiency (compared to the 30% IL state average).
What is the graduation rate of Triad High School?
The graduation rate of Triad High School is 97%, which is higher than the Illinois state average of 87%.
How many students attend Triad High School?
1,218 students attend Triad High School.
What is the racial composition of the student body?
90% of Triad High School students are White, 4% 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 Triad High School?
Triad High School has a student ration of 16:1, which is higher than the Illinois state average of 13:1.
What grades does Triad High School offer ?
Triad High School offers enrollment in grades 9-12
What school district is Triad High School part of?
Triad High School is part of Triad CUSD 2 School District.
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