Best Uniondale Private Schools (2026)

For the 2026 school year, there are 4 private schools serving 3,480 students in Uniondale, NY (there are 7 public schools, serving 6,610 public students). 34% of all K-12 students in Uniondale, NY are educated in private schools (compared to the NY state average of 15%).
The top-ranked private schools in Uniondale, NY include Kellenberg Memorial High School, St. Martin De Porres Marianist School, and Hanc - Middle & High School.
75% of private schools in Uniondale, NY are religiously affiliated (most commonly Other and Catholic).

Top-Ranked Uniondale Private Schools (2026)

School
Location
Quick Facts
Hanc - Middle & High School
(Jewish)
215 Oak St
Uniondale, NY 11553
(516) 538-8161
Gr: 7-12 | 463 students
Kellenberg Memorial High School
(Catholic)
(1)
1400 Glenn Curtiss Blvd
Uniondale, NY 11553
(516) 292-0200
Gr: 6-12 | 2,512 students Avg. class size: 20 students Tuition listed
530 Hempstead Blvd
Uniondale, NY 11553
(516) 481-3303
Gr: PK-8 | 364 students
705 Nassau Road
Uniondale, NY 11553
(516) 486-7887
Gr: NS-6 | 141 students

Overview

This Town (Uniondale)
This State (NY)
# Schools
4 Schools

Student Body:

# Students
3,480 Students
430,031 Students
% Average Students of Color
22%
40%

Academics and Faculty:

# Teachers
232 Teachers
41,979 Teachers
Average Student-Teacher Ratio
15:1
10:1
% Average Faculty w/Advanced Degree
10%
76%
Average Class Size
20 students
15 students
Average Number of AP Courses
20 courses
11 courses

Tuition and Acceptance Rate:

Average Yearly Tuition Cost
$20,000
$22,376
Average Endowment Size
$10 million
$48.74 million

Students by Ethnicity:

0.42
0.60
# American Indian Students
3 Students
949 Students
% American Indian Students
n/a
n/a
# Asian Students
36 Students
18,408 Students
% Asian Students
1%
4%
# Hispanic Students
283 Students
33,771 Students
% Hispanic Students
9%
8%
# Black Students
274 Students
33,736 Students
% Black Students
9%
8%
# White Students
2,344 Students
253,923 Students
% White Students
75%
59%
# Hawaiian Students
20 Students
2,694 Students
% Hawaiian Students
1%
1%
# Two or more races Students
n/a
n/a
% of Two or more races Students
n/a
n/a
# Others Students
156 Students
84,087 Students
% of Others Students
5%
20%
All Ethnic Groups

Extracurriculars and Sports:

Frequently Asked Questions

What are the top-ranked private schools in Uniondale, NY?
The top-ranked private schools in Uniondale, NY include Kellenberg Memorial High School, St. Martin De Porres Marianist School, and Hanc - Middle & High School.
How many private schools are located in Uniondale?
4 private schools are located in Uniondale.
What percentage of students in Uniondale go to private school?
34% of all K-12 students in Uniondale are educated in private schools (compared to the NY state average of 15%).
What percentage of private schools are religiously affiliated in Uniondale?
75% of private schools in Uniondale are religiously affiliated (most commonly Other and Catholic).

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