Helen B Duffield Elementary School
🇺🇸 Official data · 2025Ronkonkoma, New York 11779 · Connetquot Central School District
#463 of 2,536 elementary schools in New York
#6641 of 50,301 nationally
About Helen B Duffield Elementary School
Helen B Duffield Elementary School is a public elementary located in Ronkonkoma, in the Connetquot Central School District school district of New York, United States. It caters for Grades K–5. In 2025 it enrolled 313 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 77.1 out of 100, placing it in the top 25% of elementary schools in United States and 463rd of 2,536 ranked elementary schools in New York. Its strongest component is students per teacher (92th percentile), and its weakest is reading proficiency (60th percentile).
Other published figures: enrollment 313.
There are 4 schools in Ronkonkoma; Helen B Duffield Elementary School ranks 1st of 4 scored schools there.
Success Index (US) breakdown
Each component is a percentile against elementary schools across United States.
- Math proficiency (30%)64.5%
- Reading proficiency (30%)54.5%
- Community advantage (fewer free/reduced-price lunch) (25%)21.7%
- Students per teacher (15%)10.4
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Helen B Duffield Elementary School by the official sources.
- Enrollment
- 313
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 21.7%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 10.4
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 54.5%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 64.5%
- Share of tested students proficient or above (all students, all grades).
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Schools near Helen B Duffield Elementary School
Closest schools by straight-line distance, with their Success Index (US).
Ronkonkoma Middle School
Ronkonkoma · Public middle · Grades 6–8
641 students · 353 m away
Edith L Slocum Elementary School
Ronkonkoma · Public elementary · Grades PK–5
257 students · 645 m away
Cherokee Street Elementary School
Ronkonkoma · Public elementary · Grades K–5
618 students · 2.3 km away
Connetquot High School
Bohemia · Public high · Grades 9–12
1,774 students · 2.3 km away
Andrew T Morrow School
Islandia · Public elementary · Grades K–6
821 students · 3.7 km away
Hiawatha School
Lake Ronkonkoma · Public elementary · Grades K–5
541 students · 3.8 km away
Tackan Elementary School
Nesconset · Public elementary · Grades K–5
470 students · 4.3 km away
John Pearl Elementary School
Bohemia · Public elementary · Grades K–5
193 students · 4.3 km away
Samoset Middle School
Lake Ronkonkoma · Public middle · Grades 6–8
847 students · 4.3 km away
Cayuga School
Lake Grove · Public elementary · Grades K–5
539 students · 4.6 km away
Similar schools
Public elementary schools in New York with a comparable Enrollment.
Ps 20 Anna Silver
New York · Public elementary · Grades PK–5
313 students
Ps 178 Saint Clair McKelway
Brooklyn · Public elementary · Grades PK–8
313 students
School 23-Francis Parker
Rochester · Public elementary · Grades PK–6
313 students
Ps 18
Troy · Public elementary · Grades K–5
313 students
Winthrop Avenue School
Bellmore · Public elementary · Grades 3–4
312 students
Dundee Elementary School
Dundee · Public elementary · Grades PK–6
314 students
Frequently asked questions
Is Helen B Duffield Elementary School a good school?
Helen B Duffield Elementary School has a Success Index (US) of 77.1 out of 100 (Top 25% of elementary schools in United States) and ranks #463 of 2,536 in New York. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Helen B Duffield Elementary School rank in New York?
Helen B Duffield Elementary School ranks #463 of 2,536 elementary schools in New York and #6641 of 50,301 nationally on the Success Index (US) (2025 data).
How many students attend Helen B Duffield Elementary School?
Helen B Duffield Elementary School had 313 students in 2025.
Is Helen B Duffield Elementary School a elementary school or a high school?
Helen B Duffield Elementary School is classified as a elementary covering Grades K–5. It is a public school.
What other schools are near Helen B Duffield Elementary School?
There are 10 schools within 15 km of Helen B Duffield Elementary School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.