South Mountain Elementary School
🇺🇸 Official data · 2025S Orange, New Jersey 07079 · South Orange-Maplewood School District
#383 of 1,479 elementary schools in New Jersey
#3244 of 50,301 nationally
About South Mountain Elementary School
South Mountain Elementary School is a public elementary located in S Orange, in the South Orange-Maplewood School District school district of New Jersey, United States. It caters for Grades K–5. In 2025 it enrolled 613 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 83.3 out of 100, placing it in the top 10% of elementary schools in United States and 383rd of 1,479 ranked elementary schools in New Jersey. Its strongest component is community advantage (fewer free/reduced-price lunch) (99th percentile), and its weakest is math proficiency (75th percentile).
Other published figures: enrollment 613.
There are 3 schools in S Orange; South Mountain Elementary School ranks 3rd of 3 scored schools there.
Success Index (US) breakdown
Each component is a percentile against elementary schools across United States.
- Math proficiency (30%)63%
- Reading proficiency (30%)66%
- Community advantage (fewer free/reduced-price lunch) (25%)5.5%
- Students per teacher (15%)11.6
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 South Mountain Elementary School by the official sources.
- Enrollment
- 613
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 5.5%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 11.6
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 66%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 63%
- Share of tested students proficient or above (all students, all grades).
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Schools near South Mountain Elementary School
Closest schools by straight-line distance, with their Success Index (US).
South Orange Middle School
S Orange · Public middle · Grades 6–8
752 students · 850 m away
Columbia High School
Maplewood · Public high · Grades 9–12
1,985 students · 1.4 km away
Delia Bolden Elementary School
Maplewood · Public elementary · Grades K–5
518 students · 1.4 km away
Montrose Early Childhood Center
South Orange · Public other · Grades PK–PK
98 students · 1.6 km away
STEM Innovation Academy of the Oranges
South Orange · Public high · Grades 9–12
180 students · 1.9 km away
Clinton Elementary School
Maplewood · Public elementary · Grades K–5
542 students · 2.0 km away
Maplewood Middle School
Maplewood · Public middle · Grades 6–8
762 students · 2.0 km away
Marshall Elementary School
S Orange · Public elementary · Grades K–4
504 students · 2.1 km away
Gregory Elementary School
W Orange · Public elementary · Grades K–5
484 students · 2.3 km away
Tuscan Elementary School
Maplewood · Public elementary · Grades K–5
531 students · 2.5 km away
Similar schools
Public elementary schools in New Jersey with a comparable Enrollment.
Rev. Dr. Ercel F. Webb School
Jersey City · Public elementary · Grades PK–5
613 students
Edward T. Bowser Sr. School of Excellence
East Orange · Public elementary · Grades PK–5
612 students
Delran Intermediate School
Delran · Public elementary · Grades 3–5
610 students
Robert N. Wilentz Elementary School
Perth Amboy · Public elementary · Grades K–5
616 students
Richmond Avenue School
Atlantic City · Public elementary · Grades PK–8
609 students
Whiton Elementary School
Neshanic Station · Public elementary · Grades PK–3
617 students
Frequently asked questions
Is South Mountain Elementary School a good school?
South Mountain Elementary School has a Success Index (US) of 83.3 out of 100 (Top 10% of elementary schools in United States) and ranks #383 of 1,479 in New Jersey. 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 South Mountain Elementary School rank in New Jersey?
South Mountain Elementary School ranks #383 of 1,479 elementary schools in New Jersey and #3244 of 50,301 nationally on the Success Index (US) (2025 data).
How many students attend South Mountain Elementary School?
South Mountain Elementary School had 613 students in 2025.
Is South Mountain Elementary School a elementary school or a high school?
South Mountain Elementary School is classified as a elementary covering Grades K–5. It is a public school.
What other schools are near South Mountain Elementary School?
There are 10 schools within 15 km of South Mountain Elementary School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.