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Lake Surprise 2013-05-19Photo: Bryan Housel · CC BY-SA 3.0
A+
Schools in Mountainside · Mountainside Borough School District

Mountainside’s public schools outscore 96% of New Jersey districts

72% of students in Mountainside’s public schools are proficient in math, above the New Jersey average (36%). The grade covers the public school district serving Mountainside, from kindergarten through graduation, on state tests. Each state writes its own tests, so this is the one TownRatings grade compared within New Jersey, not nationally.

#7of 465 New Jersey townsK–12Where will my kid go?

From New Jersey state tests taken in spring 2022, when 98% of students in the tested grades sat them, and the class of 2020’s four-year graduation rate, as reported to the U.S. Department of Education.

Reading proficiency
81%
▲ 32 pts vs NJ 49%
2021–22
Math proficiency
72%
▲ 36 pts vs NJ 36%
2021–22
Spent per student
$23.7K
▼ 17% vs NJ $28.4K
FY2024
Students per teacher
11.5
NJ 11.6
Schools in town
4
748 students on the public path
In brief

Mountainside’s schools, in brief

Above the state on tests

Reading proficiency is 81% and math 72% in spring 2022, against 49% and 36% statewide. Test scores ↓

Spending and class size

The district spends $23,703 per student, against $28,441 across New Jersey (FY2024). Spending doesn’t count toward the grade. Districts ↓

One elementary school, then one middle school

From grade 3 the district’s path is Deerfield Elementary School. See the path ↓

Choice beyond the district

Kohler Academy (private) and Primrose School at Mountainside (private) are in town. Every school ↓

Written from the figures on this page. Tests are from 2021–22, graduation from the class of 2020; each school’s own letter uses 2020–21 results.

The School Grade

What’s behind Mountainside’s grade

A+ Test scores

A+: better than 96% of New Jersey school districts, #7 of 465 New Jersey towns. Test scores are above the New Jersey average; there is no graduation rate to add.

New Jersey school districts we grade (651)Better than 96%
Lower resultsHigher results
New Jersey towns with similar household incomes (170)Better than 94%
AA+A fairly firm grade. Ordinary sampling error in 484 test results could put Mountainside anywhere from A to A+. The tests are from spring 2022, when 98% of Mountainside’s students in the tested grades sat them (485 in math, 483 in reading).

How TownRatings grades schools →

Where will my kid go?

Pick a grade. These are the public schools that serve Mountainside, with each school’s own grade.

The path, start to finish
PK–2Beechwood SchoolMountainside Borough School DistrictNo scores
3–8Deerfield Elementary SchoolMountainside Borough School DistrictA

Mountainside’s public schools are run by Mountainside Borough School District. To confirm the school for a specific address, ask the district.

The district

Spending and class size are shown but don’t count toward the grade. Each district’s own page has every school.

Mountainside Borough School DistrictGrades PK–8 · 2 schools · 748 students, up 4% since 2020–21 · 11.5 per teacher (NJ 11.6)
$23,703NJ $28,441 · FY2024
A+
Test scores · 2021–22

Well above the state in reading

Reading81%
State average 48.6% · 483 students tested
Math72%
State average 35.5% · 485 students tested

Mountainside vs. its neighbors

Schools grades for the New Jersey towns that share Mountainside’s borders.

Schools next door
TownSchoolsMain districts
MountainsideA+Mountainside Borough
Berkeley HeightsA−Berkeley Heights Township
WestfieldAWestfield Town
SummitASummit City

Every school in Mountainside

4 schools. Each public school’s letter compares its own 2020–21 reading and math results with New Jersey’s other public schools (the newest school-level results we have).

District schools in Mountainsideby address
Beechwood School
Elementary · Grades PK–2
265 students13:1Rate it →
Deerfield Elementary School
Middle · Grades 3–8
A
483 students11:1Rate it →
Private schoolstuition; no state tests, so no grade
Kohler Academy
Grades PK–12
Private · Special education
46 students6:1Rate it →
Primrose School at Mountainside
Elementary · Grades PK–K
Private · Nonsectarian
10 students10:1Rate it →

Questions about Mountainside’s schools

Are Mountainside’s schools good?

By New Jersey’s own tests, yes: the public schools Mountainside children attend outscore 96% of New Jersey’s school districts on tests and graduation, an A+ Schools grade, #7 of 465 New Jersey towns. Among towns with similar incomes they beat 94%. Tests are from 2021–22, graduation from the class of 2020.

What school district is Mountainside in?

Mountainside Borough School District, which runs grades PK–8 and enrolls 748 students in 2 schools (2024–25).

How much does Mountainside spend per student?

$23,703 in Mountainside Borough School District (FY2024), against $28,441 across New Jersey. Spending doesn’t count toward the grade.

Are there private schools in Mountainside?

Yes: Kohler Academy (special education, grades PK–12, 46 students) and Primrose School at Mountainside (nonsectarian, grades PK–K, 10 students).

Parents talk

What Mountainside families are saying about school.

Town Square →
Start the conversation

Looking for colleges? Colleges near Mountainside → They have their own page.

School data: state test results (2021–22, with participation) and four-year graduation rates (class of 2020) reported to the U.S. Department of Education (EDFacts via ED Data Express); each school’s own letter uses its 2020–21 results (EDFacts via the Urban Institute); schools and enrollment from NCES (2024–25; private schools 2023–24); spending from the Census Bureau’s school finance survey (FY2024). The School Grade is our own summary, graded within New Jersey. Stars are from neighbors.