Enrollment
392
Elementary
DISTRICT 353 · STATE 405
SCHOOL COMMUNITY·SOUTH BRUNSWICK SCHOOL DISTRICT·NCES 341521006007
Greenbrook Elementary School
23 ROBERTS STREET, KENDALL PARK, NJ 08824 · (732) 297-2480 · Middlesex County
GRADES PK–05ELEMENTARY21-SUBURBREGULAR SCHOOL392 STUDENTS
B-
allk12 Grade
Scored higher than 47% of New Jersey public elementary 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.
- ·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
11.2:1
35 FTE teachers
DISTRICT 11.3:1 · STATE 11.4:1
Free / Reduced Lunch
35%
138 students
DISTRICT 21% · 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 | 15 | 4% |
| Kindergarten | 55 | 14% |
| Grade 1 | 63 | 16% |
| Grade 2 | 57 | 15% |
| Grade 3 | 69 | 18% |
| Grade 4 | 66 | 17% |
| Grade 5 | 67 | 17% |
This year's kindergarten class (55) is 18% smaller than its 5th grade class (67).
Student demographics
69%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 57% · 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
QUIET COMMUNITY
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START A DISCUSSIONTest scores
NJSLA 2024-25 . % Meeting or Exceeding ExpectationsEnglish Language Arts
50.5%
NJ avg 53.1% . +4.5pp since 2023
Math
56.0%
NJ avg 41.6% . +6.3pp since 2023
What this means: On the NJSLA, New Jersey's statewide test, about 51 of every 100 students at this school read and write at grade level and about 56 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 5 points since 2023, while math scores are up about 6 points.
NJSLA results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 50.5% | 56.0% |
| 2023-24 | 46.0% | 49.7% |
% 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
46.7%
composite math + reading, all grades
Predicted
46.9%
based on NJ schools with similar FRL share
Beats by
-0.2pp
below demographic expectation
What this means: About 47% of students here test proficient in math and reading, compared with the roughly 47% 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 Greenbrook Elementary School
Greenbrook Elementary School's state test result (46.7% proficient) is higher than 0 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Greenbrook Elementary School this school | 392 | 35.2% | 46.7% |
| Roosevelt Elementary School SOUTH PLAINFIELD | 472 | 35.6% | 48.1% |
| Knollwood Elementary School PISCATAWAY | 460 | 33.3% | 64.2% |
| Brunswick Acres Elementary School KENDALL PARK | 448 | 29.0% | 50.5% |
| Knollwood Elementary School Lake Hiawatha | 394 | 29.2% | 60.4% |
| School No. 3 FORT LEE | 330 | 27.9% | 69.2% |
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 Greenbrook Elementary School ranks
Among elementary schools| Measure | This school | In New Jersey | In Middlesex County |
|---|---|---|---|
| State test proficiency ranked highest first | 46.7% | #605 of 1,290 | #62 of 111 |
| Math proficiency ranked highest first | 56.0% | #482 of 1,319 ▲ 69 | #47 of 111 ▲ 10 |
| Reading proficiency ranked highest first | 50.5% | #690 of 1,319 ▲ 75 | #55 of 111 ▲ 5 |
| Enrollment ranked largest first | 392 | #732 of 1,562 | #76 of 130 |
| Students per teacher ranked fewest first | 11.2:1 | #654 of 1,390 | #54 of 120 |
| Diversity index ranked most diverse first | 69.4% | #172 of 1,392 | #41 of 121 |
| Free and reduced lunch ranked highest share first | 35.2% | #773 of 1,481 | #68 of 128 |
| Enrollment change since 2017-18 ranked steepest decline first | -3.9% | #659 of 798 | #80 of 84 |
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
392
+13 (+3%) vs 2020
+19% since 1990-91, when it was 329
Student : Teacher
11.2:1
was 10.8:1
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 | 392 | 35.2 | 11.2:1 | 35% (138) |
| 2023-24 | 395 | 38.3 | 10.3:1 | 29% (115) |
| 2022-23 | 392 | 37.6 | 10.4:1 | 26% (102) |
| 2020-21 | 379 | 35 | 10.8:1 | 22% (83) |
| 2017-18 | 408 | 34.8 | 11.7:1 | 28% (115) |
| 2015-16 | 427 | 34 | 12.6:1 | 25% (107) |
| 2010-11 | 462 | 29 | 15.9:1 | 16% (73) |
| 2000-01 | 375 | 23 | 16.3:1 | 5% (17) |
| 1990-91 | 329 | 19 | 17.3:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Greenbrook Elementary School.
Since 2017-18: students down 4% (408 to 392); teachers up 1% (34.8 to 35.2).
About Greenbrook Elementary School
Among the schools in KENDALL PARK, New Jersey, is Greenbrook Elementary School, a medium-sized elementary school. The grade span is pre-K through 5, and enrollment is 392 students.
Greenbrook Elementary School belongs to South Brunswick School District, a district of 12 schools and 7,589 students.
Asian students form the largest group at Greenbrook Elementary School, 46% of enrollment. Other groups make up 23% Hispanic, 17% White, 10% Black, and 3% multiracial. County-wide, 26% of Middlesex County residents are Asian. By the diversity index, Greenbrook Elementary School comes in at 69%.
Federal staffing data show 35.2 full-time-equivalent teachers at Greenbrook Elementary School and a ratio of 11.2:1. Elementary schools in New Jersey average about 11.4:1, a similar figure. The count of students eligible for free or reduced-price lunch equals 35% of enrollment.
The allk12 Grade for Greenbrook Elementary School is B-. Compared with New Jersey public elementary schools, the school scored higher than 47% on a mix of test scores, poverty-adjusted results, and recent trend.
In New Jersey, Greenbrook Elementary School is in the middle band of BeatsExpectations: 46.7% actual against a predicted 46.9%.
Census Bureau estimates for Middlesex County show that median household income is about $111,549, the share of adults with a bachelor's degree or higher is 46%, and about 6% of people live in poverty. Greenbrook Elementary School is one of 214 public schools in Middlesex County, which together enroll about 129,255 students.
The shortest distance from Greenbrook Elementary School to another public school is about 1.0 miles, to Cambridge Elementary School. A five-mile radius around the school includes at least 8 other public schools. Among the 8 closest schools with test data, this one included, Greenbrook Elementary School ranks 6th on average proficiency.
For locale, NCES codes Greenbrook Elementary School as Suburb: Large.
The 2024-25 enrollment of 392 was 3% higher than in 2020-21, when it was 379.
Threads on this page can be about school events, clubs, and volunteer needs. Anyone with firsthand experience at this school can post or comment.
Middlesex County at a glance
View full county profilePopulation
871,290
Census ACS
Median income
$111,549
Household, ACS
Bachelor's+
46%
Adults 25+
Poverty rate
6%
Below federal line
Schools in county
214
129,255 students
Quick facts
Related schools
Other schools in South Brunswick School District
- South Brunswick High SchoolHigh · 2,666 students
- Crossroads North Middle SchoolMiddle · 935 students
- Crossroads South Middle SchoolMiddle · 812 students
- Brooks Crossing Elementary SchoolElementary · 498 students
- Constable Elementary SchoolElementary · 476 students
- Indian Fields Elementary SchoolElementary · 460 students
Other schools in KENDALL PARK
- Constable Elementary SchoolElementary · 476 students
- Brunswick Acres Elementary SchoolElementary · 448 students
- Cambridge Elementary SchoolElementary · 416 students
Other Greenbrook Elementary schools
3 other US public schools in 4 states are named Greenbrook Elementary. Greenbrook Elementary School is the 4th largest of the 4.
- Greenbrook ElementaryDanville, CA · 732 students
- Greenbrook Elementary SchoolSouthaven, MS · 556 students
- Greenbrook Elementary SchoolHanover Park, IL · 466 students
Nearby schools
- Cambridge Elementary School1.0 mi · 416
- Franklin Park School1.2 mi · 671
- Claremont Elementary School1.2 mi · 685
- Brunswick Acres Elementary School1.3 mi · 448
- Constable Elementary School1.6 mi · 476
- Deans Elementary School2.5 mi · 75
Frequently asked questions
About Greenbrook Elementary SchoolHow large is Greenbrook Elementary School?
Greenbrook Elementary School enrolls approximately 392 students in grades PK-05.
What grades does Greenbrook Elementary School serve?
Greenbrook Elementary School serves grades PK-05.
What is the student-teacher ratio at Greenbrook Elementary School?
The student-to-teacher ratio at Greenbrook Elementary School is approximately 11.2:1 (35 FTE teachers).
What is the student diversity at Greenbrook Elementary School?
Student demographics at Greenbrook Elementary School are roughly 17% White, 23% Hispanic, 10% Black, 46% Asian, 3% Two or more.
What district is Greenbrook Elementary School in?
Greenbrook Elementary School is part of South Brunswick School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.