For the 2026 school year, there are 3 private schools serving 417 students in Annandale, NJ (there are 2 public schools, serving 1,262 public students). 25% of all K-12 students in Annandale, NJ are educated in private schools (compared to the NJ state average of 14%).
The top-ranked private school in Annandale, NJ is Immaculate Conception School.
33% of private schools in Annandale, NJ are religiously affiliated (most commonly Catholic).
Top-Ranked Annandale Private Schools (2026)
School
Location
Quick Facts
314 Old Allerton Rd
Annandale, NJ 08801
(908) 735-6334
Annandale, NJ 08801
(908) 735-6334
Gr: PK-8 | 310 students Avg. class size: 15 students Sports: 4 Tuition listed
Foundations Preschool
Daycare / Preschool
14 Lower West St
Annandale, NJ 08801
(908) 730-9195
Annandale, NJ 08801
(908) 730-9195
Gr: PK-K | 107 students
Hunterdon Preparatory School
Special Education School
11 Spencer Lane
Annandale, NJ 08801
(908) 832-7200
Annandale, NJ 08801
(908) 832-7200
Gr: 7-12 Avg. class size: 9 students
Overview
This Town (Annandale)
This State (NJ)
# Schools
3 Schools
Student Body:
# Students
417 Students
217,877 Students
% Average Students of Color
12%
40%
Academics and Faculty:
# Teachers
38 Teachers
20,239 Teachers
Average Student-Teacher Ratio
16:1
11:1
Average Class Size
12 students
14 students
Tuition and Acceptance Rate:
Students by Ethnicity:
Diversity Score
0.55
0.63
# American Indian Students
1 Student
942 Students
% American Indian Students
n/a
1%
# Asian Students
15 Students
11,318 Students
% Asian Students
3%
5%
# Hispanic Students
21 Students
15,575 Students
% Hispanic Students
4%
7%
# Black Students
3 Students
14,114 Students
% Black Students
1%
7%
# White Students
280 Students
116,454 Students
% White Students
58%
53%
# Hawaiian Students
n/a
292 Students
% Hawaiian Students
n/a
n/a
# Two or more races Students
n/a
n/a
% of Two or more races Students
n/a
n/a
# Others Students
162 Students
59,277 Students
% of Others Students
34%
27%
All Ethnic Groups
Extracurriculars and Sports:
Average Number of Sports
4 sports
7 sports
Frequently Asked Questions
What are the top-ranked private schools in Annandale, NJ?
The top-ranked private schools in Annandale, NJ is Immaculate Conception School.
How many private schools are located in Annandale?
3 private schools are located in Annandale.
What percentage of students in Annandale go to private school?
25% of all K-12 students in Annandale are educated in private schools (compared to the NJ state average of 14%).
What percentage of private schools are religiously affiliated in Annandale?
33% of private schools in Annandale are religiously affiliated (most commonly Catholic).
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