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Very Good

#154 of 992 private schools in NY

Top 15% of private schools

Developmental Disabilities Institute

School · Smithtown, NY

A private school in Smithtown, NY serving grades Pre-K – Pre-K.

Private

99 HOLLYWOOD DR, Smithtown, NY 11787

  • 2.6:1 student-teacher ratio

Academics

Preliminary

What this rating measures

This rating reflects classroom size, instructional time, student diversity, community resources, and school characteristics. Private schools are ranked against other private schools in NY.

Classroom Attention
?Student-teacher ratio calibrated against other private schools. Lower ratios mean more individual attention. (30% of overall score)
A+9.5 / 10
View breakdown
Student-Teacher Ratio2.6:1
Instructional Commitment
?Total annual instructional hours based on school day length and days per year. (15% of overall score)
C3.4 / 10
View breakdown
School Day Length6 hours
Annual Instructional Hours1,080
Diversity & Inclusion
?Racial and ethnic diversity of the student body using Simpson's diversity index. (20% of overall score)
B+7.0 / 10
View breakdown
Diversity Index43%
Community Context

Data not available

School Profile
?Enrollment size and grade span breadth — indicators of program depth and peer community. (15% of overall score)
A-8.1 / 10
View breakdown
Enrollment216
View data sources

Score basis: Private school model

Data coverage: 80% of scoring components had data

Components scored: 4 of 5

Ranking pool: Private schools in NY

Test scores

Most recent published year. School vs. NY average.

Test score data not yet available for this school.

How we rate schools

A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.

See how we rate

The neighborhood

Where Developmental Disabilities Institute sits, and what the surrounding area looks like.

Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the New York map →

Getting around & local context

  • Walk 21Car-Dependent
  • Bike 26Somewhat Bikeable
  • County Safety: Low3/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · county context, not school-level safety or attendance eligibility. Source details

Source period: 2024. A newer release may be available.

Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)

Median income

$141,505

Median home value

$642,200

Median rent

$2,349/mo

College educated

50.5%

Homeownership

86.4%

Poverty rate

5.3%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 11787; this is area context, not an attendance boundary.

Programs & students

Student demographicsNCES Private School Universe Survey (PSS) (SY 2021–22)

White74.1%
Two or More10.2%
Hispanic6.9%
Asian4.6%
Black4.2%

Source: NCES Private School Universe Survey (PSS)

Compare nearby

Nearby same-level schools

0 from a 5-mile search

No verified same-level alternatives

The available nearby set has no same-level school with a verified grade span.

Developmental Disabilities Institute is listed in Smithtown, NY; verify the current enrollment path directly.

About Developmental Disabilities Institute

Developmental Disabilities Institute is a private school in Smithtown, NY, serving approximately 216 students in grades Pre-K-Pre-K with a 2.6:1 student-teacher ratio. It holds a MySchoolScout rating of 7.5 out of 10 and ranks #154 of 992 private schools in NY.

Frequently asked questions

Common questions about Developmental Disabilities Institute

What grades does Developmental Disabilities Institute serve?

Developmental Disabilities Institute serves students in grades Pre-K through Pre-K.

How many students attend Developmental Disabilities Institute?

Developmental Disabilities Institute has an enrollment of approximately 216 students.

What is the student-teacher ratio at Developmental Disabilities Institute?

The student-teacher ratio at Developmental Disabilities Institute is 2.6:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.

How does Developmental Disabilities Institute rank in NY?

Developmental Disabilities Institute ranks #154 of 992 private schools in NY.

What is Developmental Disabilities Institute's MySchoolScout rating?

Developmental Disabilities Institute has a current MySchoolScout rating of 7.5 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

Is Developmental Disabilities Institute a private school?

Yes, Developmental Disabilities Institute is a private coeducational school with a Nonsectarian affiliation. Private schools are not required to participate in state standardized testing, so academic performance data may be limited compared to public schools.

Is Developmental Disabilities Institute a religious school?

No, Developmental Disabilities Institute is a nonsectarian (non-religious) private school.

School factsNCES Private School Universe Survey (PSS) (SY 2021–22)

Grades
Pre-K – Pre-K
Enrollment
216
Gender Split
67% M / 33% F
Student-Teacher Ratio
2.6:1
Teachers (FTE)
84
Type
private
Coed Status
coed
Affiliation
Nonsectarian
School Day
6 hours
Days Per Year
180 days
Setting
Large Suburb
County
Suffolk County
Area population (ZIP 11787)
34,656
Area average commute
32.6 min
Area median age
46.9
About this school's data

Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.

School directory (enrollment, grades, staff, contact)
NCES Private School Universe Survey (PSS) · SY 2021–22 · Low confidence
  • Vintage not available. Do not use this measure alone.
MySchoolScout rating and rank
MySchoolScout ranking model · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
Neighborhood (income, housing, education)
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
  • Older source: ACS 2019–2023 5-year estimates. Use as historical context.
  • Reported for the ZCTA for ZIP 11787; this does not measure the attendance area.

Evidence periods: Rating mixed/unknown input periods; assessments vintage unavailable; directory SY 2021–22

About our data · How we calculate scores

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