Serving 613 students in grades Kindergarten-5, South Mountain Elementary School ranks in the top 20% of all schools in New Jersey for overall test scores (math proficiency is top 20%, and reading proficiency is top 20%).
The percentage of students achieving proficiency in math is 62% (which is higher than the New Jersey state average of 38%). The percentage of students achieving proficiency in reading/language arts is 70% (which is higher than the New Jersey state average of 49%).
The student-teacher ratio of 12:1 is higher than the New Jersey state level of 11:1.
Minority enrollment is 40% of the student body (majority Black and Hispanic), which is lower than the New Jersey state average of 63% (majority Hispanic).
Quick Facts (2026)
- Grades: Kindergarten-5
- Enrollment: 613 students
- Student-Teacher Ratio: 12:1
- Minority Enrollment: 40%
- Overall Testing Rank: Top 20% in NJ
- Math Proficiency: 62% (Top 20%)
- Reading Proficiency: 70% (Top 20%)
- Science Proficiency: 40-44% (Top 20%)
- Source: National Center for Education Statistics (NCES), NJ Dept. of Education
Top Rankings
South Mountain Elementary School ranks among the top 20% of public schools in New Jersey for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
Science Proficiency
School Overview
South Mountain Elementary School's student population of 613 students has stayed relatively flat over five school years.
The teacher population of 53 teachers has grown by 6% over five school years.
Grades Offered
Grades Kindergarten-5
(No virtual instruction)
(No virtual instruction)
Total Students
613 students
Total Classroom Teachers
53 teachers
School Rankings
South Mountain Elementary School ranks within the top 20% of all 2,184 schools in New Jersey (based off of combined math and reading proficiency testing data).
The diversity score of South Mountain Elementary School is 0.60, 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
#379 out of 2184 schools
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
62%
38%
Reading/Language Arts Test Scores (% Proficient)
70%
49%
Science Test Scores (% Proficient)
40-44%
23%
Student-Teacher Ratio
12:1
11:1
Asian
4%
11%
Hispanic
11%
35%
Black
12%
14%
White
60%
37%
Two or more races
13%
3%
All Ethnic Groups
Chronically Absent Students
(22-23)8.5%
16.7%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
5%
38%
Eligible for Reduced Lunch
1%
6%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), NJ Dept. of Education
Frequently Asked Questions
What is South Mountain Elementary School's ranking?
South Mountain Elementary School is ranked #379 out of 2,184 schools, which ranks it among the top 20% of public schools in New Jersey.
What schools are South Mountain Elementary School often compared to?
South Mountain Elementary Schoolis often viewed alongside schools like Marshall Elementary School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
62% of students have achieved math proficiency (compared to the 38% NJ state average), while 70% of students have achieved reading proficiency (compared to the 49% NJ state average).
How many students attend South Mountain Elementary School?
613 students attend South Mountain Elementary School.
What is the racial composition of the student body?
60% of South Mountain Elementary School students are White, 13% of students are Two or more races, 12% of students are Black, 11% of students are Hispanic, and 4% of students are Asian.
What is the student-teacher ratio of South Mountain Elementary School?
South Mountain Elementary School has a student ration of 12:1, which is higher than the New Jersey state average of 11:1.
What grades does South Mountain Elementary School offer ?
South Mountain Elementary School offers enrollment in grades Kindergarten-5 (No virtual instruction).
What school district is South Mountain Elementary School part of?
South Mountain Elementary School is part of South Orange-Maplewood School District.
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