Public SchoolElementary

South Mountain School

2 Southern Slope Drive, Millburn, NJ 07041

ASchola Grade
Grades
Pre-K–4
Elementary
Students
278
Enrolled 2024–25
Students per teacher
9.7 : 1
Full-time teachers
District
Millburn Township School District
Essex County

Schola Grade A · Excellent

Letter grade (A–F) · compared with 1,304 New Jersey elementary schools · How we grade
Test scores82% proficient in math & reading
97thpercentile
Attendance11% chronically absent
70thpercentile
Class size9.7 students per teacher
78thpercentile

Percentiles compare this school with other New Jersey elementary schools; the line marks the middle. Some measures aren't reported for this school, so the grade uses the ones available. 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 South Mountain School

South Mountain School is a public elementary school in Millburn, New Jersey, serving grades Pre-K–4. It is part of Millburn Township School District. The school is located in a large suburb in Essex County.

In the 2024–25 school year, 278 students were enrolled, with about 9.7 students for every full-time teacher. That ratio is smaller than the typical New Jersey elementary school (10.9 students per teacher). Its Schola Grade is A (excellent), compared with 1,304 New Jersey elementary schools.

Grades & enrollment

Students per grade, 2024–25Grades Pre-K–4

Location & nearby schools

2 Southern Slope Drive
Millburn, NJ 07041
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School details

Type
Public School · What this means
Level
Elementary
Grades offered
Pre-K–4
Enrollment (2024–25)
278 students
Students per teacher
9.7 to 1
Charter school
No
Magnet school
No
Locale
Suburb — Large
School district
Millburn Township School District
County
Essex County
NCES school ID
341020000230

Schools near South Mountain School

All 6 schools in Millburn →

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.