Developmental Disabilities Institute, Smithtown NY

Developmental Disabilities Institute is a special education private school in Smithtown, NY teaching grades Ungraded. It reported 101 students and about 6.7 students for every teacher in the 2023-24 federal survey.

Paying for private school in New York

No state program pays private school tuition. What New York families can use instead.

Call (631) 366-2917 Directions Add to compare

School facts

Grades: Ungraded
Students: 101
Teachers: 15
Students per teacher: 6.7
Student body: Coeducational
Program: Special education
Affiliation: Nonsectarian
Setting: Suburb

These are the numbers the school gave the U.S. Department of Education for the 2023-24 school year, published in July 2026. The survey counts students in kindergarten to grade 12, not pre-K. Enrollment and staffing move every year, so ask the school for today’s figures. Where this comes from. Something wrong? Tell us and we will fix it.

Developmental Disabilities Institute tuition

We have not verified a tuition figure for Developmental Disabilities Institute yet. Every private school sets its own price and most share it on request: ask for the full-year tuition for your child’s grade plus required fees.

Questions to ask Developmental Disabilities Institute

What is the full-year tuition for my child’s grade, and which fees are required on top of it?
Is there a waitlist or an application deadline for my child’s grade?
Do you offer financial aid, sibling discounts or payment plans?

A school is the only source for its current price and open seats. Its admissions office can answer these.

Other private schools nearby

School	Grades	Students	Per teacher	Affiliation	Miles
Smithtown Christian School	K-12	385	9.6	Christian (nondenominational)	1
The Children's Center at UCP	PreK	52	5.8	Nonsectarian	2
Ivy League School	PreK-8	84	6	Nonsectarian	2
St. Patrick Elementary School	PreK-8	379	15.3	Roman Catholic	3
Nassau Suffolk Services for Autism	Ungraded	24	not reported	Nonsectarian	4
Ss Philip & James School	PreK-8	126	10	Roman Catholic	4
Trinity Regional School-East Northport Campus	PreK-8	253	12.3	Roman Catholic	5
Harbor Country Day School	PreK-8	117	6.1	Nonsectarian	5

Private schools

Keep looking

Do you run this school?

Fix anything that is off, and add what families ask us for most: tuition, open seats by grade, and photos. It is free.

Update this listing

Tell me if New York starts a program

New York has no program that pays private school tuition today. It could still start one, or opt in to the federal scholarship tax credit that starts in 2027. Leave your email and we will write once, with the official link, if New York starts a program or scholarships under the federal credit open. That is the only email you get.

One email if that happens. No calls, no sharing your details.