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600 1st St, Ronkonkoma, NY 11779 · (631) 467-6010 · Part of Connetquot Central School District
Islip’s School Grade A− better than 78% of New York school districts
What stands out about Helen B Duffield Elementary School
- Its own letter, B+: better results than 65% of New York’s public schools
- Math proficiency 18 pts above the state
- Small classes: 10 students per teacher
- Enrollment down 12.6% since 2020–21
- Next stop for Islip kids: 2 middle schools
On the path
Where Islip kids come from and go next. The whole path →
Test scores
2020–21Its 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 ↗














600 1st St, Ronkonkoma
Students
Down 12.6% since 2020–21.
As reported to NCES, share of students with a reported race or ethnicity.
Parents talk
Questions and answers about Helen B Duffield Elementary School from Islip families.
Other schools in Connetquot Central School District
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.