Serving 259 students in grades 5-8, High Mountain School ranks in the top 50% of all schools in New Jersey for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 44% (which is higher than the New Jersey state average of 38%). The percentage of students achieving proficiency in reading/language arts is 65% (which is higher than the New Jersey state average of 49%).
The student-teacher ratio of 10:1 is lower than the New Jersey state level of 11:1.
Minority enrollment is 27% of the student body (majority Hispanic), which is lower than the New Jersey state average of 63% (majority Hispanic).
Quick Facts (2026)
- Grades: 5-8
- Enrollment: 259 students
- Student-Teacher Ratio: 10:1
- Minority Enrollment: 27%
- Overall Testing Rank: Top 50% in NJ
- Math Proficiency: 44% (Top 50%)
- Reading Proficiency: 65% (Top 30%)
- Science Proficiency: 20-24% (Top 50%)
- Attendance Zone: High Mountain Middle School serves the entire district of Haledon, NJ, within a 3.5 square mile attendance zone, where most students live within a 5-10 minute drive, and the farthest point is approximately 2.3 miles from the school.
- Source: National Center for Education Statistics (NCES), NJ Dept. of Education
School Overview
High Mountain School's student population of 259 students has stayed relatively flat over five school years.
The teacher population of 25 teachers has declined by 10% over five school years.
Grades Offered
Grades 5-8
(No virtual instruction)
(No virtual instruction)
Total Students
259 students
Total Classroom Teachers
25 teachers
School Rankings
High Mountain School ranks within the top 50% of all 2,184 schools in New Jersey (based off of combined math and reading proficiency testing data).
The diversity score of High Mountain School is 0.43, which is less than the diversity score at state average of 0.72. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#733 out of 2184 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
44%
38%
Reading/Language Arts Test Scores (% Proficient)
65%
49%
Science Test Scores (% Proficient)
20-24%
23%
Student-Teacher Ratio
10:1
11:1
American Indian
n/a
n/a
Asian
3%
11%
Hispanic
20%
35%
Black
3%
14%
White
73%
37%
Hawaiian
n/a
n/a
Two or more races
1%
3%
All Ethnic Groups
Chronically Absent Students
(22-23)5.8%
16.7%
Eligible for Free Lunch
21%
38%
Eligible for Reduced Lunch
2%
5%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), NJ Dept. of Education
Frequently Asked Questions
What is High Mountain School's ranking?
High Mountain School is ranked #733 out of 2,184 schools, which ranks it among the top 50% of public schools in New Jersey.
What percent of students have achieved state testing proficiency in math and reading?
44% of students have achieved math proficiency (compared to the 38% NJ state average), while 65% of students have achieved reading proficiency (compared to the 49% NJ state average).
How many students attend High Mountain School?
259 students attend High Mountain School.
What is the racial composition of the student body?
73% of High Mountain School students are White, 20% of students are Hispanic, 3% of students are Asian, 3% of students are Black, and 1% of students are Two or more races.
What is the student-teacher ratio of High Mountain School?
High Mountain School has a student ration of 10:1, which is lower than the New Jersey state average of 11:1.
What grades does High Mountain School offer ?
High Mountain School offers enrollment in grades 5-8 (No virtual instruction).
What school district is High Mountain School part of?
High Mountain School is part of North Haledon School District.
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