Enrollment
224
Elementary
DISTRICT 242 · STATE 405
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
A-
allk12 Grade
Scored higher than 77% 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.
- BBeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- ·Three-year trend Not available for this school, so the grade uses the other parts.
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
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, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 3 | 77 | 34% |
| Grade 4 | 64 | 29% |
| Grade 5 | 83 | 37% |
Student demographics
65%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 59% · STATE 71% · US 70%
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
School pathway
Students here typically continue to
Based on grade levels within Berkeley Heights School District. Attendance zones can vary; confirm enrollment with the district.
Test scores
NJSLA 2024-25 . % Meeting or Exceeding ExpectationsEnglish Language Arts
63.7%
NJ avg 53.1% . -6.6pp since 2023
Math
72.2%
NJ avg 41.6% . -1.6pp since 2023
What this means: On the NJSLA, New Jersey's statewide test, about 64 of every 100 students at this school read and write at grade level and about 72 of 100 do math at grade level. Across all New Jersey schools, those numbers are about 53 and 42. Reading and writing scores are down about 7 points since 2023, while math scores are down about 2 points.
NJSLA results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 63.7% | 72.2% |
| 2023-24 | 70.3% | 73.8% |
% 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 · methodologyTier
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
What this means: About 68% of students here test proficient in math and reading, compared with the roughly 64% 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 Mountain Park School
Mountain Park School's state test result (67.8% proficient) is higher than 1 of the 3 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Mountain Park School this school | 224 | 4.5% | 67.8% |
| Mary Kay McMillin Early Childhood Center BERKELEY HEIGHTS | 256 | 2.3% | N/A |
| William Woodruff School BERKELEY HTS | 238 | 1.3% | N/A |
| Angelo L. Tomaso School Warren | 261 | 5.0% | 69.7% |
| Stony Lane Elementary School PARAMUS | 223 | 13.9% | 62.6% |
| Merritt Memorial CRESSKILL | 282 | 1.4% | 68.1% |
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 Mountain Park School ranks
Among elementary schools| Measure | This school | In New Jersey | In Union County |
|---|---|---|---|
| State test proficiency ranked highest first | 67.8% | #187 of 1,290 | #18 of 92 |
| Math proficiency ranked highest first | 72.2% | #208 of 1,319 ▼ 64 | #18 of 93 ▼ 3 |
| Reading proficiency ranked highest first | 63.7% | #408 of 1,319 ▼ 173 | #26 of 93 ▼ 7 |
| Enrollment ranked largest first | 224 | #1,346 of 1,562 | #99 of 108 |
| Students per teacher ranked fewest first | 9.4:1 | #197 of 1,390 | #2 of 103 |
| Diversity index ranked most diverse first | 65.5% | #298 of 1,392 | #10 of 103 |
| Free and reduced lunch ranked highest share first | 4.5% | #1,353 of 1,481 | #82 of 105 |
| Enrollment change since 2017-18 ranked steepest decline first | -1.8% | #749 of 798 | #51 of 58 |
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 2024-25Enrollment
224
-19 (-8%) vs 2020
-28% since 1990-91, when it was 312
Student : Teacher
9.4:1
was 10.1:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 224 | 23.9 | 9.4:1 | 4% (10) |
| 2023-24 | 214 | 23.5 | 9.1:1 | 2% (4) |
| 2022-23 | 223 | 26 | 8.6:1 | 2% (5) |
| 2020-21 | 243 | 24 | 10.1:1 | 1% (3) |
| 2017-18 | 228 | 20.7 | 11.0:1 | 1% (3) |
| 2015-16 | 228 | 20 | 11.4:1 | 3% (6) |
| 2010-11 | 156 | 20 | 7.8:1 | 0% (0) |
| 2000-01 | 222 | 18 | 12.3:1 | 3% (7) |
| 1990-91 | 312 | 18 | 17.3:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Mountain Park School.
Since 2017-18: students down 2% (228 to 224); teachers up 16% (20.7 to 23.9).
About Mountain Park School
The public elementary school Mountain Park School is located in BERKELEY HTS, New Jersey. The school teaches grades 3 through 5 and enrolls 224 students. It has 45% fewer students than the average for elementary schools in New Jersey (about 405).
District-wide, Berkeley Heights School District has 6 schools and 2,340 students.
At Mountain Park School, White students make up the biggest share, 50%. Other groups include 25% Asian, 16% Hispanic, and 8% multiracial. By comparison, Union County residents are about 39% White. A diversity index of 65% means there is a 65% chance two randomly chosen students at Mountain Park School are from different groups.
The student-to-teacher ratio at Mountain Park School is 9.4:1, based on 23.9 full-time-equivalent teachers. Compared with the 11.4:1 average for elementary schools in New Jersey, this school's ratio is lower. Lunch program data show 4% of students are eligible for free or reduced-price meals. Among public schools in Union County, the average eligibility rate is 52%.
Mountain Park School earns an A- on the allk12 Grade, which blends test scores, results against poverty-based expectations, and the three-year trend. It scored higher than 77% of New Jersey public elementary schools.
After adjusting for student poverty, Mountain Park School lands between the top and bottom 10% of New Jersey schools. Its average proficiency rate across its state test results is 67.8%; the prediction is 63.7%.
Union County is the school's county. There, median household income comes to about $103,202, 39% of adults hold a bachelor's degree or higher, and about 7% of people live in poverty. There are 180 public schools in the county, enrolling about 99,046, Mountain Park School among them.
Measured in a straight line, Columbia Middle School is about 0.8 miles from Mountain Park School. Within five miles are at least 8 other public schools. Of 6 schools in the immediate area with test results, Mountain Park School ranks 2nd on average proficiency.
On the NCES locale scale, the school is Suburb: Large.
Federal enrollment counts fell from 243 (2020-21) to 224 (2024-25).
This page collects posts and questions about Mountain Park School, such as fundraisers, report cards, and school supplies. Current and former families are welcome to add their experience.
Union County at a glance
View full county profilePopulation
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
Related schools
Other schools in Berkeley Heights School District
- Governor Livingston High SchoolHigh · 849 students
- Columbia Middle SchoolMiddle · 523 students
- Mary Kay McMillin Early Childhood CenterElementary · 256 students
- Thomas P. Hughes SchoolElementary · 250 students
- William Woodruff SchoolElementary · 238 students
Other schools in BERKELEY HTS
- Columbia Middle SchoolMiddle · 523 students
- Thomas P. Hughes SchoolElementary · 250 students
- William Woodruff SchoolElementary · 238 students
Other Mountain Park schools
One other US public school is named Mountain Park. Mountain Park School is the largest of the 2.
- Mountain ParkMonrovia, CA · 51 students
Nearby schools
- Columbia Middle School0.8 mi · 523
- Mary Kay McMillin Early Childhood Center0.8 mi · 256
- Gillette Elementary School1.1 mi · 215
- Thomas P. Hughes School1.3 mi · 250
- Watchung Hills Regional High School1.7 mi · 1,653
- Woodland School1.7 mi · 212
Frequently asked questions
About Mountain Park SchoolWhat 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.