Tri-Valley Secondary School

34 Moore Hill Rd, Grahamsville, NY 12740

DSchola Grade
Grades
7–12
High
Students
408
Enrolled 2024–25
Students per teacher
9.1 : 1
Full-time teachers
District
Tri-Valley Central School District
Sullivan County

Schola Grade D · Below average

Letter grade (A–F) · compared with 1,093 New York high schools · How we grade
Test scores40% proficient in math & reading
13thpercentile
Equity24% of low-income students proficient
4thpercentile
Attendance39% chronically absent
40thpercentile
Graduation rate92% graduate in 4 years
50thpercentile
College readinessAt least 18% take AP, IB or dual-enrollment courses
32ndpercentile
Class size9.1 students per teacher
83rdpercentile

Percentiles compare this school with other New York high schools; the line marks the middle. Data: test scores 2021–22, graduation and absenteeism 2022–23 (U.S. Department of Education, EDFacts); coursework 2023–24 (Civil Rights Data Collection); staffing 2024–25 (NCES).

About Tri-Valley Secondary School

Tri-Valley Secondary School is a public high school in Grahamsville, New York, serving grades 7–12. It is part of Tri-Valley Central School District. The school is located in a rural area in Sullivan County.

In the 2024–25 school year, 408 students were enrolled, with about 9.1 students for every full-time teacher. That ratio is smaller than the typical New York high school (10.7 students per teacher). Its Schola Grade is D (below average), compared with 1,093 New York high schools.

Grades & enrollment

Students per grade, 2024–25Grades 7–12

Location & nearby schools

34 Moore Hill Rd
Grahamsville, NY 12740
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School details

Type
Public School · What this means
Level
High
Grades offered
7–12
Enrollment (2024–25)
408 students
Students per teacher
9.1 to 1
AP courses offered
1
Charter school
No
Magnet school
No
Locale
Rural — Distant
School district
Tri-Valley Central School District
County
Sullivan County
NCES school ID
362889003910

Schools near Tri-Valley Secondary School

All 2 schools in Grahamsville →

School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.