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SCHOOL COMMUNITY·PISCATAWAY TOWNSHIP SCHOOL DISTRICT·NCES 341305000042

Knollwood Elementary School

333 WILLOW AVENUE, PISCATAWAY, NJ 08854 · (732) 885-1528 · Middlesex County
GRADES KG–03ELEMENTARY21-SUBURBREGULAR SCHOOL460 STUDENTS
A
allk12 Grade
Scored higher than 87% 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.
  • ABeats 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

Enrollment
460
Elementary
DISTRICT 521 · STATE 405
Student : Teacher
13.5:1
34 FTE teachers
DISTRICT 13.1:1 · STATE 11.4:1
Free / Reduced Lunch
33%
153 students
DISTRICT 44% · 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, 2024-25

GradeStudentsShare
Kindergarten9521%
Grade 110523%
Grade 211425%
Grade 314632%
Student demographics
73%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 74% · STATE 71% · US 70%
White
6514%
DISTRICT 11% · STATE 37% · US 43%
Hispanic
9120%
DISTRICT 27% · STATE 35% · US 30%
Black
7416%
DISTRICT 22% · STATE 14% · US 15%
Asian
19342%
DISTRICT 35% · STATE 10% · US 6%
Two+
337%
DISTRICT 4% · STATE 3% · US 5%
Native American
41%
DISTRICT 1% · STATE 0% · US 1%
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
Male
26257%
Female
19843%

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Test scores

NJSLA 2024-25 . % Meeting or Exceeding Expectations
English Language Arts
60.7%
NJ avg 53.1% . -4.8pp since 2023
Math
62.6%
NJ avg 41.6% . -5.5pp since 2023

What this means: On the NJSLA, New Jersey's statewide test, about 61 of every 100 students at this school read and write at grade level and about 63 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 5 points since 2023, while math scores are down about 5 points.

NJSLA results by year

School yearEnglish Language ArtsMath
2024-2560.7%62.6%
2023-2465.5%68.1%
% 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 · methodology
Tier
OUTPERFORMING
Top 10% of NJ schools after controlling for student poverty
Actual proficiency
64.2%
composite math + reading, all grades
Predicted
48.0%
based on NJ schools with similar FRL share
Beats by
+16.3pp
above demographic expectation

What this means: About 64% of students here test proficient in math and reading, well above the roughly 48% typical for New Jersey schools with a similar share of low-income students. BeatsExpectations ranks schools against others at the same poverty level, not by raw scores, so a school can post high scores and still fall short of its prediction, or post lower scores and still beat it. This school clears its prediction by about 16 points, placing it in New Jersey's top 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 Knollwood Elementary School

Knollwood Elementary School's state test result (64.2% proficient) is higher than 4 of the 4 schools below with a result.

SchoolStudentsLow-incomeProficient
Knollwood Elementary School this school46033.3%64.2%
Martin Luther King Elementary School
PISCATAWAY
48838.9%57.3%
James Monroe Elementary School
Edison
53734.6%51.2%
Greenbrook Elementary School
KENDALL PARK
39235.2%46.7%
Roosevelt Elementary School
SOUTH PLAINFIELD
47235.6%48.1%
Piscataway Township Schools Children's Corner
Piscataway
61636.2%N/A
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 Knollwood Elementary School ranks

Among elementary schools
MeasureThis schoolIn New JerseyIn Middlesex County
State test proficiency
ranked highest first
64.2%#259 of 1,290#22 of 111
Math proficiency
ranked highest first
62.6%#367 of 1,319
▼ 122
#29 of 111
▼ 7
Reading proficiency
ranked highest first
60.7%#466 of 1,319
▼ 128
#32 of 111
▼ 5
Enrollment
ranked largest first
460#515 of 1,562#55 of 130
Students per teacher
ranked fewest first
13.5:1#1,169 of 1,390#100 of 120
Diversity index
ranked most diverse first
73.4%#52 of 1,392#17 of 121
Free and reduced lunch
ranked highest share first
33.3%#806 of 1,481#73 of 128
Enrollment change since 2017-18
ranked steepest decline first
-6.5%#559 of 798#72 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 2024-25
Enrollment
460
-45 (-9%) vs 2020
-2% since 2000-01, when it was 471
Student : Teacher
13.5:1
was 14.8:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2546034.113.5:133% (153)
2023-2446731.714.7:128% (131)
2022-2350832.115.8:127% (137)
2020-215053414.8:119% (98)
2017-1849234.314.4:131% (152)
2015-164943115.9:126% (129)
2010-115132520.5:118% (94)
2000-014713115.2:113% (59)
Source: NCES Common Core of Data. Rows are the federal collections on file for Knollwood Elementary School.

Since 2017-18: students down 7% (492 to 460); teachers unchanged (34.3 to 34.1).

About Knollwood Elementary School

Knollwood Elementary School is classified as an elementary school. It is located in PISCATAWAY, New Jersey. Classes run from kindergarten through 3, and the school has 460 students.

Within Piscataway Township School District, Knollwood Elementary School is one of 11 schools. The district enrolls 7,289 students.

Enrollment at Knollwood Elementary School is mixed, with Asian students the largest group at 42%. Other reported shares: 20% Hispanic, 16% Black, 14% White, and 7% multiracial. That compares with about 26% Asian among all Middlesex County residents. By the diversity index, Knollwood Elementary School comes in at 73%.

A ratio of 13.5:1 comes from the school's 34.1 full-time-equivalent teachers. For comparison, elementary schools in New Jersey average 11.4:1. Free or reduced-price lunch eligibility was 33% in 2024-25. The average for public schools in Middlesex County is 42%.

The allk12 Grade for Knollwood Elementary School is A. Compared with New Jersey public elementary schools, the school scored higher than 87% on a mix of test scores, poverty-adjusted results, and recent trend.

Knollwood Elementary School is in the top 10% of New Jersey schools on the allk12 BeatsExpectations measure. Based on its free or reduced-price lunch share, the model predicts an average proficiency rate on state tests of 48.0%. The school's actual rate is 64.2%, 16.3 points higher.

In Middlesex County (population about 871,290), median household income is about $111,549, roughly 46% of adults have a four-year degree or more, and about 6% of residents live below the federal poverty line. Knollwood Elementary School is one of 214 public schools in Middlesex County, which together enroll about 129,255 students.

Of nearby public schools, Martin Luther King Elementary School is the closest, at about 0.5 miles. The count of other public schools within five miles is at least 8. Its average proficiency rate of 64.2% is above the 56.5% average for nearby schools.

Federal records code the school's setting as Suburb: Large.

A comparison of 2020-21 and 2024-25 shows enrollment down 9%, from 505 to 460. The school's ratio fell from 14.8:1 to 13.5:1 between 2020-21 and 2024-25.

If you have questions about sports schedules, lunch menus, and spirit week at Knollwood Elementary School, you can post them here. Posting is open to anyone connected to the school.

Middlesex County at a glance

View full county profile
Population
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

School name
Knollwood Elementary School
District
Piscataway Township School District
Address
333 WILLOW AVENUE, PISCATAWAY, NJ 08854
Phone
(732) 885-1528
County
Middlesex County
Level
Elementary
Grade range
KG–03
Total enrollment
460
Teachers (FTE)
34
Student–teacher ratio
13.5:1
Free and reduced lunch
153 (33%)
Locale
21-Suburb: Large
NCES ID
341305000042
Charter school
No
Virtual school
No

Related schools

Other schools in Piscataway Township School District
Other schools in PISCATAWAY
Other Knollwood Elementary schools

3 other US public schools in 3 states are named Knollwood Elementary. Knollwood Elementary School is the 2nd largest of the 4.

Nearby schools

Frequently asked questions

About Knollwood Elementary School
How many students attend Knollwood Elementary School?
Knollwood Elementary School enrolls approximately 460 students in grades KG-03.
What grades does Knollwood Elementary School serve?
Knollwood Elementary School serves grades KG-03.
How many students per teacher at Knollwood Elementary School?
Approximately 13.5:1 students per teacher at Knollwood Elementary School.
How diverse is Knollwood Elementary School?
Knollwood Elementary School reports a student body of 14% White, 20% Hispanic, 16% Black, 42% Asian, 7% Two or more.
Who oversees Knollwood Elementary School?
Knollwood Elementary School is overseen by Piscataway Township School District in Middlesex County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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