Enrollment
272
Elementary
DISTRICT 441 · STATE 405
SCHOOL COMMUNITY·NORTH PLAINFIELD SCHOOL DISTRICT·NCES 341164005264
Stony Brook School
269 Grove Street, North Plainfield, NJ 07060 · (908) 769-6063 · Somerset County
GRADES PK–04ELEMENTARY21-SUBURBTITLE IREGULAR SCHOOL272 STUDENTS
C-
allk12 Grade
Scored higher than 23% of New Jersey public elementary schools
- DTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- B-Beats 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
9.7:1
28 FTE teachers
DISTRICT 10.5:1 · STATE 11.4:1
Free / Reduced Lunch
89%
243 students
DISTRICT 80% · 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 |
|---|---|---|
| Pre-K | 14 | 5% |
| Kindergarten | 48 | 18% |
| Grade 1 | 64 | 24% |
| Grade 2 | 51 | 19% |
| Grade 3 | 46 | 17% |
| Grade 4 | 49 | 18% |
This year's kindergarten class (48) is about the same size as its 4th grade class (49).
Student demographics
19%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 42% · 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 North Plainfield School District. Attendance zones can vary; confirm enrollment with the district.
Test scores
NJSLA 2024-25 . % Meeting or Exceeding ExpectationsEnglish Language Arts
21.6%
NJ avg 53.1% . +2.9pp since 2023
Math
18.6%
NJ avg 41.6% . +0.6pp since 2023
What this means: On the NJSLA, New Jersey's statewide test, about 22 of every 100 students at this school read and write at grade level and about 19 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 3 points since 2023, while math scores have held steady.
NJSLA results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 21.6% | 18.6% |
| 2023-24 | 18.7% | 18.0% |
% 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
19.4%
composite math + reading, all grades
Predicted
17.3%
based on NJ schools with similar FRL share
Beats by
+2.2pp
above demographic expectation
What this means: About 19% of students here test proficient in math and reading, compared with the roughly 17% 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 Stony Brook School
Stony Brook School's state test result (19.4% proficient) is higher than 2 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Stony Brook School this school | 272 | 89.3% | 19.4% |
| Jefferson Elementary School UNION CITY | 272 | 85.3% | 44.7% |
| William Harrison Elementary School TRENTON | 243 | 88.5% | 8.0% |
| Ella G Clarke Elementary School LAKEWOOD | 314 | 94.3% | 28.7% |
| Roberto Clemente PATERSON | 254 | 85.0% | 19.3% |
| Clifton Ave Grade School LAKEWOOD | 331 | 91.8% | 26.1% |
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 Stony Brook School ranks
Among elementary schools| Measure | This school | In New Jersey | In Somerset County |
|---|---|---|---|
| State test proficiency ranked highest first | 19.4% | #1,140 of 1,290 | #42 of 42 |
| Math proficiency ranked highest first | 18.6% | #1,171 of 1,319 ▼ 41 | #42 of 42 no change |
| Reading proficiency ranked highest first | 21.6% | #1,217 of 1,319 ▲ 6 | #41 of 42 no change |
| Enrollment ranked largest first | 272 | #1,216 of 1,562 | #41 of 46 |
| Students per teacher ranked fewest first | 9.7:1 | #274 of 1,390 | #22 of 45 |
| Diversity index ranked most diverse first | 19.1% | #1,312 of 1,392 | #45 of 45 |
| Free and reduced lunch ranked highest share first | 89.3% | #65 of 1,481 | #1 of 45 |
| Enrollment change since 2017-18 ranked fastest growth first | +11.0% | #227 of 545 | #5 of 13 |
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
272
+25 (+10%) vs 2020
-5% since 1990-91, when it was 286
Student : Teacher
9.7:1
was 9.5:1
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 | 272 | 28 | 9.7:1 | 89% (243) |
| 2023-24 | 277 | 28 | 9.9:1 | 84% (232) |
| 2022-23 | 251 | 27 | 9.3:1 | 82% (205) |
| 2020-21 | 247 | 26 | 9.5:1 | 68% (167) |
| 2017-18 | 245 | 20 | 12.3:1 | 78% (190) |
| 2015-16 | 253 | 20 | 12.7:1 | 82% (208) |
| 2010-11 | 256 | 15 | 17.1:1 | 70% (178) |
| 2000-01 | 386 | 26 | 14.8:1 | 52% (202) |
| 1990-91 | 286 | 13 | 22.0:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Stony Brook School.
Since 2017-18: students up 11% (245 to 272); teachers up 40% (20 to 28).
About Stony Brook School
A small elementary school in North Plainfield, New Jersey, Stony Brook School is part of North Plainfield School District. The school reports 272 students in pre-K through 4. The school's enrollment is 33% smaller than the 405 average for elementary schools in New Jersey.
North Plainfield School District enrolls 3,487 students in 6 schools, including Stony Brook School.
Federal enrollment data show Stony Brook School is 90% Hispanic. The school is also 6% White and 2% Black. The Hispanic share of the county population is lower, at 18%. The school's diversity index is 19%, meaning two students picked at random have a 19% chance of belonging to different racial or ethnic groups.
Staffing totals 28 full-time-equivalent teachers, and the student-to-teacher ratio is 9.7:1. That is lower than the 11.4:1 average for elementary schools in New Jersey. A measure often used for student poverty, free or reduced-price lunch eligibility, stands at 89%. The gap from the 28% average for public schools in Somerset County is 61 points.
Stony Brook School is graded C- by allk12, scoring above 23% of New Jersey public elementary schools once test results, poverty-adjusted performance, and the recent trend are combined.
Stony Brook School's average proficiency rate on state tests of 19.4% is 2.2 points above the 17.3% the model predicts from its lunch-eligibility share.
In Somerset County (population about 349,846), the median household income is $140,374, a bachelor's degree or higher is held by about 58% of adults, and the poverty rate is about 4%. There are 84 public schools in Somerset County, enrolling about 51,276 students in all.
The shortest distance from Stony Brook School to another public school is about 0.1 miles, to North Plainfield Middle School. Other public schools within five miles: at least 8. Among 9 nearby schools that report test results, Stony Brook School ranks 6th on proficiency.
Stony Brook School has an NCES locale of Suburb: Large.
The school enrolled 272 students in 2024-25, 25 more than the 247 it had in 2020-21.
Discussion on this page can cover school events, clubs, and volunteer needs. Posting is open to anyone connected to the school.
Somerset County at a glance
View full county profilePopulation
349,846
Census ACS
Median income
$140,374
Household, ACS
Bachelor's+
58%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
84
51,276 students
Quick facts
Related schools
Other schools in North Plainfield School District
- North Plainfield High SchoolHigh · 1,141 students
- West End SchoolElementary · 600 students
- North Plainfield Middle SchoolMiddle · 538 students
- Somerset SchoolMiddle · 485 students
- East End SchoolElementary · 451 students
Other schools in North Plainfield
- North Plainfield High SchoolHigh · 1,141 students
- West End SchoolElementary · 600 students
- North Plainfield Middle SchoolMiddle · 538 students
- Somerset SchoolMiddle · 485 students
- East End SchoolElementary · 451 students
Other Stony Brook schools
2 other US public schools in 2 states are named Stony Brook. Stony Brook School is the 3rd largest of the 3.
- Stony Brook SchoolBranchburg, NJ · 310 students
- Stony Brook SchoolWestford, MA · 546 students
Nearby schools
- North Plainfield Middle School0.1 mi · 538
- North Plainfield High School0.1 mi · 1,141
- Somerset School0.5 mi · 485
- The Barack Obama Green Charter School0.8 mi · 358
- West End School0.9 mi · 600
- East End School1.0 mi · 451
Frequently asked questions
About Stony Brook SchoolHow large is Stony Brook School?
Stony Brook School enrolls approximately 272 students in grades PK-04.
What age range does Stony Brook School serve?
Stony Brook School serves students from grade PK through grade 04.
How many students per teacher at Stony Brook School?
Approximately 9.7:1 students per teacher at Stony Brook School.
What is the racial breakdown of students at Stony Brook School?
At Stony Brook School, the student body is approximately 6% White, 90% Hispanic, 2% Black, 1% Asian, 1% Two or more.
Is Stony Brook School public or private?
Stony Brook School is a public K-12 school, overseen by North Plainfield School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.