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SCHOOL COMMUNITY·SOUTH ORANGE-MAPLEWOOD SCHOOL DISTRICT·NCES 341533002442

South Mountain Elementary School

444 WEST SOUTH ORANGE AVE, S ORANGE, NJ 07079 · (973) 378-5216 · Essex County
GRADES KG–05ELEMENTARY21-SUBURBREGULAR SCHOOL613 STUDENTS
B+
allk12 Grade
Scored higher than 67% of New Jersey public elementary schools
  • A-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • C+Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded New Jersey public elementary schools

Enrollment
613
Elementary
DISTRICT 461 · STATE 405
Student : Teacher
11.5:1
53 FTE teachers
DISTRICT 11.1:1 · STATE 11.4:1
Free / Reduced Lunch
6%
34 students
DISTRICT 14% · STATE 41%
Community
1
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Kindergarten8514%
Grade 110918%
Grade 211318%
Grade 310717%
Grade 49215%
Grade 510717%

This year's kindergarten class (85) is 21% smaller than its 5th grade class (107).

Student demographics
60%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 64% · STATE 71% · US 70%
White
36560%
DISTRICT 54% · STATE 37% · US 43%
Hispanic
6611%
DISTRICT 11% · STATE 35% · US 30%
Black
7512%
DISTRICT 22% · STATE 14% · US 15%
Asian
224%
DISTRICT 3% · STATE 10% · US 6%
Two+
8213%
DISTRICT 10% · STATE 3% · US 5%
Pacific Islander
20%
DISTRICT 0% · STATE 0% · US 0%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
30450%
Female
30850%

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Test scores

NJSLA 2024-25 . % Meeting or Exceeding Expectations
English Language Arts
72.2%
NJ avg 53.1% . +4.4pp since 2023
Math
66.4%
NJ avg 41.6% . +5.6pp since 2023

What this means: On the NJSLA, New Jersey's statewide test, about 72 of every 100 students at this school read and write at grade level and about 66 of 100 do math at grade level. Across all New Jersey schools, those numbers are about 53 and 42. Reading and writing scores are up about 4 points since 2023, while math scores are up about 6 points.

NJSLA results by year

School yearEnglish Language ArtsMath
2024-2572.2%66.4%
2023-2467.8%60.8%
% Meeting or Exceeding Expectations, all students and all tested grades.
Source: NJSLA. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
63.0%
composite math + reading, all grades
Predicted
63.1%
based on NJ schools with similar FRL share
Beats by
-0.1pp
below demographic expectation

What this means: About 63% of students here test proficient in math and reading, compared with the roughly 63% typical for New Jersey schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among New Jersey's top nor bottom 10%.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

Schools most like South Mountain Elementary School

South Mountain Elementary School's state test result (63.0% proficient) is higher than 2 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
South Mountain Elementary School this school6135.5%63.0%
Tuscan Elementary School
MAPLEWOOD
5317.2%70.6%
Delia Bolden Elementary School
MAPLEWOOD
5188.5%64.5%
Marshall Elementary School
S ORANGE
5048.5%75.4%
Richard L Rice School
MARLTON
4927.7%44.7%
Hainesport Township School
HAINESPORT
52313.8%44.4%
Matched among New Jersey elementary schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.

Where South Mountain Elementary School ranks

Among elementary schools
MeasureThis schoolIn New JerseyIn Essex County
State test proficiency
ranked highest first
63.0%#279 of 1,290#32 of 131
Math proficiency
ranked highest first
66.4%#305 of 1,319
▲ 62
#35 of 141
▲ 3
Reading proficiency
ranked highest first
72.2%#221 of 1,319
▲ 72
#33 of 141
▲ 3
Enrollment
ranked largest first
613#209 of 1,562#31 of 162
Students per teacher
ranked fewest first
11.5:1#735 of 1,390#33 of 140
Diversity index
ranked most diverse first
59.8%#497 of 1,392#36 of 141
Free and reduced lunch
ranked highest share first
5.5%#1,334 of 1,481#126 of 142
Enrollment change since 2017-18
ranked fastest growth first
+3.7%#420 of 545#42 of 61
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
613
+1 (+0%) vs 2020
+47% since 1990-91, when it was 416
Student : Teacher
11.5:1
was 12.5:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2561353.411.5:16% (34)
2023-2465049.413.2:14% (27)
2022-2361849.412.5:13% (16)
2020-216124912.5:13% (19)
2017-1859146.512.7:15% (31)
2015-166073816.0:15% (31)
2010-116233617.3:16% (35)
2000-015423018.1:18% (44)
1990-914162417.3:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for South Mountain Elementary School.

Since 2017-18: students up 4% (591 to 613); teachers up 15% (46.5 to 53.4).

About South Mountain Elementary School

South Mountain Elementary School, located in S ORANGE, New Jersey, is a high-enrollment elementary school. Total enrollment is 613 students, and the grades served are kindergarten through 5. Elementary schools in New Jersey have about 405 students on average; enrollment here is 51% higher.

South Mountain Elementary School reports to South Orange-Maplewood School District, which has 10 schools and 6,728 students.

More than half of the students at South Mountain Elementary School are White (60%). Other reported shares: 13% multiracial, 12% Black, 11% Hispanic, and 4% Asian. That compares with about 30% White among all Essex County residents. The diversity index for South Mountain Elementary School is 60%. For US public schools as a whole it is 70%.

Based on 53.4 full-time-equivalent teachers, South Mountain Elementary School has a ratio of 11.5:1. The average for elementary schools in New Jersey is about 11.4:1. Income data for the school show 6% of students eligible for free or reduced-price lunch. The 54% average for public schools in Essex County is 48 points higher.

South Mountain Elementary School holds a B+ allk12 Grade, placing it above 67% of New Jersey public elementary schools.

Schools in New Jersey with a similar free or reduced-price lunch share are predicted to score about 63.1%. South Mountain Elementary School scores 63.0%.

In Essex County, home to about 863,002 people, the median household earns about $80,789 a year, a bachelor's degree or higher is held by about 39% of adults, and the share of residents below the poverty line is 11%. Public schools in Essex County number 249, with about 145,473 students.

Among nearby public schools, South Orange Middle School is closest at about 0.5 miles. In all, at least 8 other public schools sit within five miles of South Mountain Elementary School. On state test proficiency, South Mountain Elementary School ranks 4th in a group of 8 nearby schools.

South Mountain Elementary School is in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more, a location NCES labels Suburb: Large.

The school's size has been steady, with 612 students in 2020-21 and 613 in 2024-25. Its ratio of students to teachers was 12.5:1 in 2020-21, and 11.5:1 in 2024-25.

On allk12, people connected to South Mountain Elementary School can post about athletics, class schedules, and weather closures. Current and former families are welcome to add their experience.

Essex County at a glance

View full county profile
Population
863,002
Census ACS
Median income
$80,789
Household, ACS
Bachelor's+
39%
Adults 25+
Poverty rate
11%
Below federal line
Schools in county
249
145,473 students

Quick facts

School name
South Mountain Elementary School
District
South Orange-Maplewood School District
Address
444 WEST SOUTH ORANGE AVE, S ORANGE, NJ 07079
Phone
(973) 378-5216
County
Essex County
Level
Elementary
Grade range
KG–05
Total enrollment
613
Teachers (FTE)
53
Student–teacher ratio
11.5:1
Free and reduced lunch
34 (6%)
Locale
21-Suburb: Large
NCES ID
341533002442
Charter school
No
Virtual school
No

Related schools

Other schools in South Orange-Maplewood School District
Other schools in S ORANGE
Other South Mountain Elementary schools

3 other US public schools in 4 states are named South Mountain Elementary. South Mountain Elementary School is the largest of the 4.

Nearby schools

Frequently asked questions

About South Mountain Elementary School
How large is South Mountain Elementary School?
South Mountain Elementary School enrolls approximately 613 students in grades KG-05.
What grades does South Mountain Elementary School serve?
South Mountain Elementary School serves grades KG-05.
How many teachers does South Mountain Elementary School have?
South Mountain Elementary School employs 53 FTE teachers, for a student-to-teacher ratio of 11.5:1.
How diverse is South Mountain Elementary School?
South Mountain Elementary School reports a student body of 60% White, 11% Hispanic, 12% Black, 4% Asian, 13% Two or more.
What district is South Mountain Elementary School in?
South Mountain Elementary School is part of South Orange-Maplewood School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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