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What do you wish you knew before starting at Stonybrook Elementary School?
Community prompt from u/allk12. Replies below.
Enrollment
358
Elementary
DISTRICT 366 · STATE 405
SCHOOL COMMUNITY·KINNELON SCHOOL DISTRICT·NCES 340804004288
Stonybrook Elementary School
118 BOONTON AVENUE, KINNELON, NJ 07405 · (973) 838-1881 · Morris County
GRADES 03–05ELEMENTARY21-SUBURBREGULAR SCHOOL358 STUDENTS
Student : Teacher
11.4:1
32 FTE teachers
DISTRICT 11.9:1 · STATE 11.4:1
Free / Reduced Lunch
4%
13 students
DISTRICT 4% · 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
Student demographics
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
School pathway
Students here typically continue to
Feeds from
Based on grade levels within Kinnelon School District. Attendance zones can vary; confirm enrollment with the district.
Test scores
NJSLA 2024-25 . % Meeting or Exceeding ExpectationsEnglish Language Arts
75.3%
NJ avg 53.1% . +5.5pp since 2023
Math
79.9%
NJ avg 41.6% . +9.8pp since 2023
What this means: On the NJSLA, New Jersey's statewide test, about 75 of every 100 students at this school read and write at grade level and about 80 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 6 points since 2023, while math scores are up about 10 points.
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
69.1%
composite math + reading, all grades
Predicted
64.2%
based on NJ schools with similar FRL share
Beats by
+4.9pp
above demographic expectation
What this means: About 69% 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 →
7-year change
SY 2017-18 vs SY 2024-25Enrollment
358
-103 (-22%) vs 2017
Student : Teacher
11.4:1
was 12.3:1
% White
73%
was 83%
% Hispanic
10%
was 7%
% Black
2%
was 1%
% Asian
11%
was 8%
Source: NCES Common Core of Data
About Stonybrook Elementary School
Stonybrook Elementary School is a mid-tier elementary school in KINNELON, New Jersey, part of Kinnelon School District. The school works with 358 students in grades 3 through 5.
Kinnelon School District comprises 4 schools with combined enrollment of 1,617 students; Stonybrook Elementary School is among them.
On the student-mix side, Stonybrook Elementary School logs that the largest single group is White, at 73% of enrollment. Beyond that, the school reports 11% Asian, 10% Hispanic, 2% Black.
On the income-and-resources front, On paper, Stonybrook Elementary School has 32 full-time-equivalent teachers, translating to a class-load average of around 11.4:1. That tracks the state average closely. An estimated 4% of students are eligible for free or reduced-price lunch, a commonly cited indicator of low-income enrollment. That share is south of Morris County's rate of about 19%.
Adjusting for the school's free-and-reduced-lunch share, Stonybrook Elementary School sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 64.2%; this one delivers 69.1%.
Across the wider county, Morris County reports that median household income runs about $137,326, roughly 58% of adults have completed at least a four-year degree, and census figures put the poverty rate at about 3%. Across Morris County's 156 public schools (combined enrollment of about 72,239 students), Stonybrook Elementary School is one campus in the mix.
Nearest neighbor: Richard Butler School, around 1.8 miles off. Counting just inside five miles, 8 other public schools cluster around Stonybrook Elementary School. Ranking that nearby cluster on reported proficiency puts Stonybrook Elementary School at 1st of 8; the average score across the group is 55.5%.
Stonybrook Elementary School operates from a bedroom-community location.
Over the past 7-year window. Over the past 7-year window, the student count shrank 22%: 461 students in 2018 compared to 358 in 2025. The White share of enrollment decreased from 83% to 73% over that span.
On the community side, members of the Stonybrook Elementary School community share and discuss sports schedules, lunch menu changes, and school spirit week. Anyone with firsthand experience at this school can post or comment.
Morris County at a glance
View full county profilePopulation
514,528
Census ACS
Median income
$137,326
Household, ACS
Bachelor's+
58%
Adults 25+
Poverty rate
3%
Below federal line
Schools in county
156
72,239 students
Quick facts
Related schools
Other schools in Kinnelon School District
- Kinnelon High SchoolHigh · 507 students
- Pearl R. Miller Middle SchoolMiddle · 378 students
- Kiel Elementary SchoolElementary · 374 students
Other schools in KINNELON
- Kinnelon High SchoolHigh · 507 students
- Pearl R. Miller Middle SchoolMiddle · 378 students
- Kiel Elementary SchoolElementary · 374 students
Nearby schools
- Richard Butler School1.8 mi · 291
- Pearl R. Miller Middle School1.9 mi · 378
- Kiel Elementary School1.9 mi · 374
- Butler High School2.0 mi · 482
- Kinnelon High School2.0 mi · 507
- Aaron Decker School2.4 mi · 383
Frequently asked questions
About Stonybrook Elementary SchoolHow large is Stonybrook Elementary School?
Stonybrook Elementary School enrolls approximately 358 students in grades 03-05.
Is Stonybrook Elementary School an elementary, middle, or high school?
Stonybrook Elementary School is an elementary school covering grades 03-05.
How many students per teacher at Stonybrook Elementary School?
Approximately 11.4:1 students per teacher at Stonybrook Elementary School.
How diverse is Stonybrook Elementary School?
Stonybrook Elementary School reports a student body of 73% White, 10% Hispanic, 2% Black, 11% Asian, 0% Two or more.
What district is Stonybrook Elementary School in?
Stonybrook Elementary School is part of Kinnelon School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.