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Very Good

#155 of 991 private schools in NY

Top 16% of private schools

Developmental Disabilities Institute

School

99 HOLLYWOOD DR, Smithtown, NY 11787

Private Estimated Score

Estimated academic score. This school does not have standardized test data. Based on NY statewide data. Learn more

Enrollment

216

Student-Teacher

2.6:1

Score

7.5

Grades

Pre-K – Pre-K

Updated 2021-22

How this school compares

In Smithtown

#1 of 3

public schools

New York schools

#63 of 277

About Developmental Disabilities Institute

Developmental Disabilities Institute is a public school located in Smithtown, Suffolk County, New York, offering programs specifically for students with developmental disabilities from pre-kindergarten through pre-kindergarten. The school has an enrollment of 216 students and maintains a low student-to-teacher ratio of 2.6:1, ensuring individualized attention for each child. With 84 full-time equivalent teachers, the school prioritizes small class sizes to support the unique needs of its students.

While the MySchoolScout rating is currently at 5.0 out of 10 and the state ranking is #579 among 991 schools in New York (placing it around the 42nd percentile), Developmental Disabilities Institute focuses on nurturing and developing each student's abilities rather than solely emphasizing academic test scores. The school is situated in a large suburban area, providing students with access to a supportive community environment. With its dedicated staff and tailored educational programs, Developmental Disabilities Institute offers a caring and inclusive setting for young learners.

What Parents Should Know

With a student-teacher ratio of 2.6:1, Developmental Disabilities Institute offers a notably low ratio compared to the national average. This typically means smaller class sizes and more opportunities for one-on-one interaction between students and teachers.

As a private school, Developmental Disabilities Institute operates independently from the local public school district. Families considering this school should inquire about tuition costs, financial aid availability, and the admissions process. Private schools are not required to follow the same curriculum standards as public schools, which can be either an advantage or a consideration depending on your priorities.

Financial Overview

Source: IRS Form 990 (2023 filing)

Per-Pupil Spending
Total expenses ÷ enrollment
$676,142
Per-Pupil Revenue
Total revenue ÷ enrollment
$681,912
Financial Health
Revenue-to-expense ratio (>1.0 = surplus)
1.01x — Stable
Tuition Dependency
Share of revenue from program services (tuition, fees)
96%
Total Assets
End-of-year total assets from IRS filing
$92.5M

Financial data from IRS Form 990 filings via ProPublica Nonprofit Explorer. Per-pupil figures based on current enrollment of 216 students. Not all private schools file Form 990.

Compare to Public Schools

Beta

How Developmental Disabilities Institute compares to the 6 public schools in Smithtown, NY

Student-Teacher Ratio
2.6:1
This School
vs
11.8:1
Public Avg
Avg School Size
216
This School
vs
610
Public Avg
Avg School Scout Rating
7.5
This School
vs
7.6
Public Avg

Student Demographics

White 74.1% vs 0%
Hispanic 6.9% vs 0%
Asian 4.6% vs 0%
Black 4.2% vs 0%
Developmental Disabilities Institute Smithtown Public Avg

All Schools in Smithtown

School Rating
Developmental Disabilities Institute (this school) 7.5
ACCOMPSETT ELEMENTARY SCHOOL 6.8
ACCOMPSETT MIDDLE SCHOOL 5.4
SMITHTOWN HIGH SCHOOL-WEST 8.3
SMITHTOWN ELEMENTARY SCHOOL 8.8
MOUNT PLEASANT ELEMENTARY SCHOOL 7.8
DOGWOOD ELEMENTARY SCHOOL 8.6

Demographics sourced from NCES Private School Survey (PSS) and Common Core of Data (CCD). Comparisons are based on enrollment-weighted averages.

Score Breakdown

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 Ratio 2.6:1
Instructional Commitment
? Total annual instructional hours based on school day length and days per year. (15% of overall score)
C 3.4 / 10
View breakdown
School Day Length 6 hours
Annual Instructional Hours 1,080
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 Index 43%
Community Context

Data Unavailable

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
Enrollment 216
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

Test score data not yet available for this school.

Student Demographics NCES PSS (SY 2021-22)

White 74.1%
Two or More 10.2%
Hispanic 6.9%
Asian 4.6%
Black 4.2%

Source: NCES Private School Survey (PSS)

Location

99 HOLLYWOOD DR, Smithtown, NY 11787

Nearby Alternatives

Families considering Developmental Disabilities Institute may also want to explore other schools in the area. SMITHTOWN CHRISTIAN SCHOOL (rated 7.3/10, 1.4 miles away), with a very similar rating. Another option is SMITHTOWN CHRISTIAN SCHOOL (rated 6.7/10, 1.4 miles away), with a comparable rating. Additionally, THE CHILDREN'S CENTER AT UCP (rated 5.2/10, 2.2 miles away, in nearby Commack), a more accessible option. For more schools in Smithtown, see our Smithtown schools guide .

Nearby Schools

20 within 2.6 mi
School Distance Rating
ACCOMPSETT ELEMENTARY SCHOOL Smithtown 0.8 mi 6.8
ACCOMPSETT MIDDLE SCHOOL Smithtown 0.9 mi 5.4
SMITHTOWN HIGH SCHOOL-WEST Smithtown 0.9 mi 8.3
PINES ELEMENTARY SCHOOL Hauppauge 1.5 mi 7.2
PARKVIEW ELEMENTARY SCHOOL Kings Park 1.8 mi 9.1
SMITHTOWN CHRISTIAN SCHOOL Smithtown 1.4 mi 7.3
SMITHTOWN CHRISTIAN SCHOOL Smithtown 1.4 mi 6.7
INDIAN HOLLOW SCHOOL Commack 1.5 mi 5.7
FOREST BROOK ELEMENTARY SCHOOL Hauppauge 1.8 mi 7.5
KINGS PARK HIGH SCHOOL Kings Park 2.3 mi 8.9
RJ O INTERMEDIATE SCHOOL Kings Park 2.7 mi 6.6
THE CHILDREN'S CENTER AT UCP Commack 2.2 mi 5.2
WILLIAM T ROGERS MIDDLE SCHOOL Kings Park 2.8 mi 5.9
SMITHTOWN ELEMENTARY SCHOOL Smithtown 2.3 mi 8.8
WOOD PARK SCHOOL Commack 2.6 mi 8.0
HAUPPAUGE HIGH SCHOOL Hauppauge 2.7 mi 7.2
HAUPPAUGE MIDDLE SCHOOL Hauppauge 2.7 mi 7.0
SAWMILL INTERMEDIATE SCHOOL Commack 2.7 mi 7.9
BRETTON WOODS ELEMENTARY SCHOOL Hauppauge 3.0 mi 7.9
MOUNT PLEASANT ELEMENTARY SCHOOL Smithtown 2.6 mi 7.8

Neighborhood Census ACS (2019-2023)

Census data for ZIP 11787 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$141,505

Median Home Value

$642,200

Median Rent

$2,349/mo

Population

34,656

College Educated

50.5%

Homeownership

86.4%

Avg Commute

32.6 min

Poverty Rate

5.3%

Median Age

46.9

Community Profile

The community surrounding Developmental Disabilities Institute has a median household income of $141,505. It is a well-educated community where 51% of adults hold a bachelor's degree or higher. The median home value in the area is $642,200, with a median rent of $2,349/month. The local poverty rate of 5.3% is relatively low. The average commute for residents is 33 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
COOKE SCHOOL New York, NY 7.5
SCHECHTER SCHOOL OF LONG ISLAND Williston Park, NY 7.5
SUMMIT SCHOOL Jamaica, NY 7.5
THE CENTER FOR DISCOVERY Monticello, NY 7.5
UNIVERSAL SCHOOL Buffalo, NY 7.5
WEST VALLEY CENTRAL SCHOOL West Valley, NY 7.5

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 is ranked #155 out of 991 private schools in NY.

What is Developmental Disabilities Institute's MySchoolScout rating?

Developmental Disabilities Institute has a composite rating of 7.5 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. 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.

11 schools nearby View map →

Neighborhood Context

Walk Score
21 Car-Dependent
Bike Score
26 Somewhat Bikeable

Powered by Walk Score

FBI UCR. County-level only.

Quick Facts NCES 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
Data Year
2022–2023

How We Rate Schools

Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.

Read our full methodology

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