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B−

Grundy Avenue School

PublicElementaryGrades K–5

950 Grundy Ave, Holbrook, NY 11741 · (631) 471-1820 · Part of Sachem Central School District

Islip’s School Grade A− better than 78% of New York school districts

Directions
Students
452
Students per teacher
12:1
Free or reduced lunch
28%
Setting
Suburb
Grades
K–5
The gist

What stands out about Grundy Avenue School

  • Its own letter, B−: better results than 45% of New York’s public schools
  • Reading / language arts 6 pts below the state
  • Small classes: 12 students per teacher

Test scores

2020–21
Math proficiency52%
State average 56.1%
Reading / language arts57%
State average 62.6%

Its own letter, B−, places these results among New York’s 4,095 public schools with results. Source: EDFacts via Urban Institute Education Data Portal (SY2020-21).

Location

Directions ↗

950 Grundy Ave, Holbrook

Students

Enrollment by grade
Kindergarten58
Grade 167
Grade 299
Grade 385
Grade 466
Grade 577
Enrollment over time
484’20
493’21
470’22
460’23
452’24

Down 6.6% since 2020–21.

Who goes here
White 67%Hispanic 22%Asian 4%Two or more races 4%Black 2%Native Hawaiian/Pacific Islander <1%American Indian/Alaska Native <1%

As reported to NCES, share of students with a reported race or ethnicity.

Parents talk

Questions and answers about Grundy Avenue School from Islip families.

Other schools in Sachem Central School District

The district →
Lynwood Avenue School
Elementary · Grades K–5 · Farmingville
B
561 students14:1
Chippewa Elementary School
Elementary · Grades K–5 · Holtsville
B−
543 students12:1
Hiawatha School
Elementary · Grades K–5 · Lake Ronkonkoma
B−
541 students13:1
Cayuga School
Elementary · Grades K–5 · Lake Grove
B
539 students12:1
Waverly Avenue School
Elementary · Grades K–5 · Holtsville
B
497 students12:1
Nokomis School
Elementary · Grades K–5 · Holbrook
C+
496 students11:1

School facts: U.S. Department of Education (NCES), 2024–2025 school year. Test scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). A school’s letter is our own summary of its reading and math results against New York’s other public schools; Islip’s School Grade is built from its districts’ results. Map: © OpenStreetMap contributors.