Enrollment
259
Middle
DISTRICT 304 · STATE 578
SCHOOL COMMUNITY·NORTH HALEDON SCHOOL DISTRICT·NCES 341155004830
High Mountain School
515 HIGH MOUNTAIN ROAD, NORTH HALEDON, NJ 07508 · (973) 427-1220 · Passaic County
GRADES 05–08MIDDLE21-SUBURBREGULAR SCHOOL259 STUDENTS
B-
allk12 Grade
Scored higher than 46% of New Jersey public middle schools
- B-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 middle schools
Student : Teacher
10.5:1
25 FTE teachers
DISTRICT 10.4:1 · STATE 10.9:1
Free / Reduced Lunch
24%
61 students
DISTRICT 25% · STATE 41%
Community
0
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 5 | 71 | 27% |
| Grade 6 | 58 | 22% |
| Grade 7 | 64 | 25% |
| Grade 8 | 66 | 25% |
Student demographics
43%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 53% · 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
Feeds from
Based on grade levels within North Haledon School District. Attendance zones can vary; confirm enrollment with the district.
Test scores
NJSLA 2024-25 . % Meeting or Exceeding ExpectationsEnglish Language Arts
63.5%
NJ avg 53.1% . +0.4pp since 2023
Math
46.0%
NJ avg 41.6% . +4.5pp 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 46 of 100 do math at grade level. Across all New Jersey schools, those numbers are about 53 and 42. Reading and writing scores have held steady since 2023, while math scores are up about 5 points.
NJSLA results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 63.5% | 46.0% |
| 2023-24 | 63.1% | 41.5% |
% 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
48.3%
composite math + reading, all grades
Predicted
53.3%
based on NJ schools with similar FRL share
Beats by
-4.9pp
below demographic expectation
What this means: About 48% of students here test proficient in math and reading, compared with the roughly 53% 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 High Mountain School
High Mountain School's state test result (48.3% proficient) is higher than 2 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| High Mountain School this school | 259 | 23.6% | 48.3% |
| Frank Antonides School West Long Branch | 220 | 24.5% | 58.1% |
| Southampton Township School #3 SOUTHAMPTON | 253 | 24.1% | 52.3% |
| Logan Middle School Logan Township | 258 | 21.3% | 39.8% |
| Great Meadows Regional Middle School GREAT MEADOWS | 361 | 21.9% | 48.2% |
| Long Pond School NEWTON | 189 | 23.3% | 56.0% |
Matched among New Jersey middle 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 High Mountain School ranks
Among middle schools| Measure | This school | In New Jersey | In Passaic County |
|---|---|---|---|
| State test proficiency ranked highest first | 48.3% | #194 of 433 | #6 of 21 |
| Math proficiency ranked highest first | 46.0% | #200 of 437 ▲ 3 | #6 of 21 ▲ 2 |
| Reading proficiency ranked highest first | 63.5% | #197 of 437 ▼ 23 | #8 of 21 no change |
| Enrollment ranked largest first | 259 | #396 of 445 | #18 of 22 |
| Students per teacher ranked fewest first | 10.5:1 | #169 of 417 | #9 of 19 |
| Diversity index ranked most diverse first | 42.6% | #315 of 419 | #13 of 19 |
| Free and reduced lunch ranked highest share first | 23.6% | #264 of 436 | #16 of 21 |
| Enrollment change since 2017-18 ranked steepest decline first | -9.1% | #164 of 282 | #7 of 14 |
Ranked against other public middle 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
259
-7 (-3%) vs 2020
+13% since 1990-91, when it was 230
Student : Teacher
10.5:1
was 9.8:1
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 | 259 | 24.7 | 10.5:1 | 24% (61) |
| 2023-24 | 260 | 26.3 | 9.9:1 | 15% (38) |
| 2022-23 | 257 | 27.4 | 9.4:1 | 12% (32) |
| 2020-21 | 266 | 27 | 9.8:1 | 14% (37) |
| 2017-18 | 285 | 30 | 9.5:1 | 19% (54) |
| 2015-16 | 295 | 28 | 10.5:1 | 19% (55) |
| 2010-11 | 324 | 22 | 14.7:1 | 11% (36) |
| 2000-01 | 236 | 20 | 11.8:1 | 9% (22) |
| 1990-91 | 230 | 19 | 12.1:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for High Mountain School.
Since 2017-18: students down 9% (285 to 259); teachers down 18% (30 to 24.7).
About High Mountain School
High Mountain School is a middle school in NORTH HALEDON, New Jersey, reachable at (973) 427-1220. The school's enrollment of 259 students covers grades 5 through 8. Statewide, middle schools in New Jersey average about 578 students each.
The district for High Mountain School is North Haledon School District, with 2 schools and 608 students.
Roughly 73% of students at High Mountain School are White. It is also 20% Hispanic, 3% Black, and 3% Asian. Passaic County's residents are about 41% White, 32 points below the school's share. High Mountain School's diversity index is 43%, against a US figure of 70%.
High Mountain School operates with 24.7 full-time-equivalent teachers, a ratio of about 10.5:1. That matches the 10.9:1 average for middle schools in New Jersey fairly closely. High Mountain School reports 24% of students eligible for free or reduced-price meals. The rate at public schools in Passaic County averages 61%, higher than here.
The allk12 Grade for High Mountain School is B-. Compared with New Jersey public middle schools, the school scored higher than 46% on a mix of test scores, poverty-adjusted results, and recent trend.
On a poverty-adjusted basis, High Mountain School falls in the middle 80% of New Jersey schools: 48.3% actual against 53.3% predicted.
County data help place the school in context: in Passaic County, the median household income is $87,522, about 31% of adults have at least a bachelor's degree, and roughly 11% of residents are in poverty. In all, Passaic County has 155 public schools and roughly 83,237 students.
Memorial Elementary School is the public school closest to High Mountain School, about 0.4 miles away. There are at least 8 other public schools within five miles. Nearby schools average 32.1% on proficiency, and High Mountain School is above that at 48.3%.
The school's federal locale classification is Suburb: Large.
Enrollment is down 3% from 2020-21, when High Mountain School had 266 students, to 2024-25, when it had 259.
To ask about school events, clubs, and volunteer needs, start a discussion on this page. Anyone with firsthand experience at this school can post or comment.
Passaic County at a glance
View full county profilePopulation
521,012
Census ACS
Median income
$87,522
Household, ACS
Bachelor's+
31%
Adults 25+
Poverty rate
11%
Below federal line
Schools in county
155
83,237 students
Quick facts
Related schools
Other schools in North Haledon School District
- Memorial Elementary SchoolElementary · 349 students
Other schools in NORTH HALEDON
- Memorial Elementary SchoolElementary · 349 students
Nearby schools
- Memorial Elementary School0.4 mi · 349
- Passaic County-Manchester Regional High School0.9 mi · 803
- Washington Elementary School1.1 mi · 253
- Hawthorne High School1.2 mi · 569
- Prospect Park Middle School1.4 mi · 143
- Prospect Park School No. 11.5 mi · 620
Frequently asked questions
About High Mountain SchoolHow large is High Mountain School?
High Mountain School enrolls approximately 259 students in grades 05-08.
Is High Mountain School an elementary, middle, or high school?
High Mountain School is a middle school covering grades 05-08.
How many teachers does High Mountain School have?
High Mountain School employs 25 FTE teachers, for a student-to-teacher ratio of 10.5:1.
How diverse is High Mountain School?
High Mountain School reports a student body of 73% White, 20% Hispanic, 3% Black, 3% Asian, 1% Two or more.
Is High Mountain School public or private?
High Mountain School is a public K-12 school, overseen by North Haledon School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.