Triad High School
🇺🇸 Official data · 2025Troy, Illinois 62294 · Triad CUSD 2
#120 of 691 high schools in Illinois
#7607 of 16,910 nationally
About Triad High School
Triad High School is a public high located in Troy, in the Triad CUSD 2 school district of Illinois, United States. It caters for Grades 9–12. In 2025 it enrolled 1,218 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 53.0 out of 100, placing it in the top 50% of high schools in United States and 120th of 691 ranked high schools in Illinois. Its strongest component is community advantage (fewer free/reduced-price lunch) (95th percentile), and its weakest is reading proficiency (28th percentile).
Other published figures: enrollment 1,218.
There are 3 schools in Troy; Triad High School ranks 2nd of 3 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)39%
- Reading proficiency (30%)41%
- Community advantage (fewer free/reduced-price lunch) (25%)16.2%
- Students per teacher (15%)16.2
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Triad High School by the official sources.
- Enrollment
- 1,218
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 16.2%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 16.2
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 41%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 39%
- Share of tested students proficient or above (all students, all grades).
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Schools near Triad High School
Closest schools by straight-line distance, with their Success Index (US).
C A Henning School
Troy · Public elementary · Grades PK–5
706 students · 1.4 km away
Silver Creek Elementary
Troy · Public elementary · Grades PK–5
757 students · 2.3 km away
Triad Middle School
Saint Jacob · Public middle · Grades 6–8
925 students · 3.1 km away
St Jacob Elem School
Saint Jacob · Public elementary · Grades PK–5
262 students · 7.4 km away
Albert Cassens Elementary
Glen Carbon · Public elementary · Grades 3–5
477 students · 8.0 km away
Liberty Middle School
Edwardsville · Public middle · Grades 6–8
888 students · 9.6 km away
Maryville Elem School
Maryville · Public elementary · Grades PK–4
406 students · 9.7 km away
Goshen Elementary
Edwardsville · Public elementary · Grades PK–2
346 students · 9.9 km away
Marine Elem School
Marine · Public elementary · Grades K–5
141 students · 10 km away
Dorris Intermediate Sch
Collinsville · Public middle · Grades 4–6
871 students · 10 km away
Similar schools
Public high schools in Illinois with a comparable Enrollment.
Bloom Trail High School
Chicago Heights · Public high · Grades 9–12
1,218 students
Ottawa Township High School
Ottawa · Public high · Grades 9–12
1,223 students
Grayslake North High School
Grayslake · Public high · Grades 9–12
1,208 students
Springfield Southeast High Sch
Springfield · Public high · Grades 9–12
1,229 students
Steinmetz College Prep HS
Chicago · Public high · Grades 9–12
1,230 students
Westinghouse High School
Chicago · Public high · Grades 9–12
1,230 students
Frequently asked questions
Is Triad High School a good school?
Triad High School has a Success Index (US) of 53.0 out of 100 (Top 50% of high schools in United States) and ranks #120 of 691 in Illinois. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Triad High School rank in Illinois?
Triad High School ranks #120 of 691 high schools in Illinois and #7607 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Triad High School?
Triad High School had 1,218 students in 2025.
Is Triad High School a elementary school or a high school?
Triad High School is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Triad High School?
There are 10 schools within 15 km of Triad High School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.