UNIS is chartered by the New York State Board of Regents for the purpose of establishing, maintaining, and operating a United Nations International School, including a prekindergarten, elementary school, and secondary school which will fit the specific needs of children of the different nationalities comprising the United Nations.
The school is open to families from the United Nations and families outside it, and both international and New York families. UNIS is accredited by the European Council of International Schools.
The secondary program culminates in the International Baccalaureate, and the school's internationally recognized academic standards enable its students to transfer to international and national schools and to be eligible for admission to universities in the United States and other countries.
Quick Stats (2025)
- Top Ranked NY School
- Grades: Prekindergarten-12
- Enrollment: 1,483 students
- Yearly Tuition: $44,196
- Acceptance rate: 10%
- Average class size: 18 students
- Application Deadline: Nov. 15 / rolling
- Source: Verified school update
Top Rankings
United Nations International School ranks among the top 20% of private schools in New York for:
Category
Attribute
Acceptance Rate
Student Body
AP Courses
School Overview
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades Prekindergarten-12
ADD/ADHD Support
Yes
Year Founded
1947
Colors
White, Light blue
School Calendar
First Day of School
Mon. Sep 1, 2025
Last Day of School
Tue. Jun 30, 2026
Student Body
Total Students
1,483 students
Student Body Type
Co-ed
% Students of Color
15%
State avg.: 40%
Students by Grade

Academics and Faculty
Total Classroom Teachers
302 teachers
Student : Teacher Ratio
5:1
National avg.: 13:1
Average Class Size
18 students
Number of AP Courses
38 courses
List of Courses Offered
Classroom Dress Code
Casual
Tuition and Acceptance Rate
Admission Deadline
Nov. 15 / rolling
Yearly Tuition Cost
$44,196
Tuition Notes
Pre-K:$44,196
Kindergarten:$44,196
1st Grade:$44,196
2nd Grade:$44,196
3rd Grade:$44,196
4th Grade:$44,196
5th Grade:$45,834
6th Grade:$45,834
7th Grade:$45,834
8th Grade:$46,463
9th Grade:$48,021
10th Grade:$48,021
11th Grade:$48,473
12th Grade:$49,206
% on Financial Aid
10%
Acceptance Rate
10%
National avg.: 81%
Admissions Director
Brad Walters
Application URL
Sports
Total Sports Offered
11 sports
School Notes
- School Motto: Educational excellence nurtured in a diverse international community
- School Mascot: United Nations Blue
- UNIS is chartered by the New York State Board of Regents for the purpose of establishing, maintaining, and operating a United Nations International School, including a prekindergarten, elementary school, and secondary school which will fit the specific needs of children of the different nationalities comprising the United Nations. The school is open to families from the United Nations and families outside it, and both international and New York families. UNIS is accredited by the European Council of International Schools. The secondary program culminates in the International Baccalaureate, and the school's internationally recognized academic standards enable its students to transfer to international and national schools and to be eligible for admission to universities in the United States and other countries.
- Sample of notable school alumni/alumnae:
- Kofi Annan - Nobel Laureate and UN Secretary-General -
Source: Verified school update
Frequently Asked Questions
How much does United Nations International School cost?
United Nations International School's tuition is approximately $44,196 for private students.
What is the acceptance rate of United Nations International School?
The acceptance rate of United Nations International School is 10%, which is lower than the national average of 74%. United Nations International School's acceptance rate is ranked among the top private schools in New York with low acceptance rates.
Who are famous alumni from United Nations International School?
United Nations International School famous alumni include: Kofi Annan - Nobel Laureate and UN Secretary-General.
What sports does United Nations International School offer?
United Nations International School offers 11 interscholastic sports: Baseball, Basketball, Cross Country, Indoor Soccer, Paddle Tennis, Soccer, Softball, Tennis, Track and Field, Volleyball and Winter Track.
What is United Nations International School's ranking?
United Nations International School ranks among the top 20% of private schools in New York for: Lowest average acceptance rates, Largest student body and Most AP courses offered.
When is the application deadline for United Nations International School?
The application deadline for United Nations International School is Nov. 15 / rolling (applications are due on Nov. 15 but additional applications are reviewed year-round as space permits ).
School Reviews
5 8/3/2024
I go there and it is amazing! You get close bonds with your classmates and earn lifelong friends from all around the world. There a different cultures and everybody respects them it's amazing! We have fun activities and the teachers are great! It is such a safe space. Sure your best friends move to some odd places that are really far away but then you go visit them and see so many new things. The teachers are the best in 3rd grade my teacher was able to teach the class times tables in 5 minutes! The homework is really good too. It started off in 3rd grade before it was just projects. But in 3rd grade it was easy then it got harder as we moved on. It is really the best school in the world. You or your children should totally go!
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