The bulletin board for America's public schools. Parents, teachers, students, and staff. One community per school.
SCHOOL COMMUNITY·BERKELEY HEIGHTS SCHOOL DISTRICT·NCES 340153005440

Mountain Park School

55 FAIRFAX DR, BERKELEY HTS, NJ 07922 · (908) 464-1713 · Union County
GRADES 03–05ELEMENTARY21-SUBURBREGULAR SCHOOL224 STUDENTS
Enrollment
224
Elementary
DISTRICT 242 · STATE 405
Student : Teacher
9.4:1
24 FTE teachers
DISTRICT 11.4:1 · STATE 11.4:1
Free / Reduced Lunch
4%
10 students
DISTRICT 3% · STATE 41%
Community
0
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Grade 3
77
Grade 4
64
Grade 5
83
Student demographics
White
11250%
DISTRICT 59% · STATE 37%
Hispanic
3516%
DISTRICT 15% · STATE 35%
Black
31%
DISTRICT 2% · STATE 14%
Asian
5725%
DISTRICT 17% · STATE 10%
Two+
178%
DISTRICT 7% · STATE 3%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
12455%
Female
10045%

Discussions

+ POST
QUIET COMMUNITY
Be the first to start a discussion at Mountain Park School.
START A DISCUSSION
Recent discussions in Berkeley Heights School District

Test scores

NJSLA 2024-25 . % Meeting or Exceeding Expectations
English Language Arts
63.7%
NJ avg 53.1% . -6.6pp since 2023
Math
72.2%
NJ avg 41.6% . -1.6pp since 2023
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
67.8%
composite math + reading, all grades
Predicted
63.7%
based on NJ schools with similar FRL share
Beats by
+4.1pp
above demographic expectation
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
224
-4 (-2%) vs 2017
Student : Teacher
9.4:1
was 11.0:1
% White
50%
was 67%
% Hispanic
16%
was 12%
% Black
1%
was 3%
% Asian
25%
was 13%
Source: NCES Common Core of Data

About Mountain Park School

Mountain Park School, a small K-5 school in BERKELEY HTS, New Jersey, run under Berkeley Heights School District, serves 224 students, covering grades 3 through 5. That puts it 45% below the typical public school in New Jersey, which averages around 405 students.

Berkeley Heights School District runs 6 schools in total, collectively educating 2,340 students. Mountain Park School is one of those campuses.

For racial and ethnic makeup, Mountain Park School reports that the largest single group is White at 50%, but no single group is in the majority; the rest consists of 25% Asian, 16% Hispanic, 8% multiracial. The wider county runs roughly 39% White, putting the school's mix considerably more White than the area baseline.

Looking at the economic backdrop, Staff filings list 24 full-time-equivalent teachers, which works out to roughly 9.4:1 students per teacher. That figure is tighter than the state norm's 11.4:1 average. An estimated 4% of students are eligible for free or reduced-price lunch, often used as a Title I proxy. By comparison, Union County runs at roughly 52%, so the school's eligibility rate is somewhat below the surrounding baseline.

On a demographically-adjusted basis, Mountain Park School sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 63.7%; this one delivers 67.8%.

Across the wider county, ACS estimates for Union County put median household earnings sit near $103,202, about 39% of the adult population holds a bachelor's degree or above, and census figures put the poverty rate at about 7%. Mountain Park School is one of 180 public schools in Union County (combined enrollment of about 99,046 students).

The closest other public school is Columbia Middle School, roughly 0.8 miles away. 8 of the 8 nearest public schools sit inside a five-mile radius. On composite proficiency, Mountain Park School comes 2nd of 6 in the immediate cluster, ahead of the nearby-schools average of 64.7%.

The campus sits in a commuter-belt setting.

Five-year trend. Mountain Park School's enrollment has held roughly steady since 2018, when it stood at 228 (now 224). The White share of enrollment edged down from 67% to 50% over that span. Class-load math has tightened: from 11.0:1 in 2018 to 9.4:1 in 2025.

In the discussion threads here, recent activity here tends to focus on school events, parent volunteer needs, and clubs. The community welcomes input from current and former families.

Union County at a glance

View full county profile
Population
579,290
Census ACS
Median income
$103,202
Household, ACS
Bachelor's+
39%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
180
99,046 students

Quick facts

School name
Mountain Park School
District
Berkeley Heights School District
Address
55 FAIRFAX DR, BERKELEY HTS, NJ 07922
Phone
(908) 464-1713
County
Union County
Level
Elementary
Grade range
03–05
Total enrollment
224
Teachers (FTE)
24
Student–teacher ratio
9.4:1
Free/Reduced lunch
10 (4%)
Locale
21-Suburb: Large
NCES ID
340153005440
Charter school
No
Virtual school
No

Related schools

Other schools in Berkeley Heights School District
Other schools in BERKELEY HTS
Nearby schools

Frequently asked questions

About Mountain Park School
What is the total enrollment at Mountain Park School?
Mountain Park School enrolls approximately 224 students in grades 03-05.
What grades does Mountain Park School serve?
Mountain Park School serves grades 03-05.
What is the student-teacher ratio at Mountain Park School?
The student-to-teacher ratio at Mountain Park School is approximately 9.4:1 (24 FTE teachers).
What is the racial breakdown of students at Mountain Park School?
At Mountain Park School, the student body is approximately 50% White, 16% Hispanic, 1% Black, 25% Asian, 8% Two or more.
What district is Mountain Park School in?
Mountain Park School is part of Berkeley Heights School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
+ Post