Private School Review - Established 2003

Annandale Private Schools

For the 2026-27 school year, there are 3 private schools serving 417 students in Annandale, NJ, 25% of all K-12 students in Annandale, NJ are educated in private schools versus public schools (compared to the NJ state average of 14%).
33% of private schools in Annandale, NJ are religiously affiliated (most commonly Catholic).

Quick Facts (26-27)

Quick Facts (26-27)

Top Ranked Annandale Private Schools (2026-27)

Immaculate Conception School Photo
Immaculate Conception School
Gr: PK-8 | 310 students
Sports: 4
Catholic
314 Old Allerton Rd
Annandale, NJ 08801
(908) 735-6334
(6)
View Profile
Map of Foundations Preschool
Foundations Preschool
Gr: PK-K | 107 students
Daycare / Preschool
14 Lower West St
Annandale, NJ 08801
(908) 730-9195
View Profile
Map of Hunterdon Preparatory School
Hunterdon Preparatory School
Gr: 7-12
Avg. class size: 9 students
Special Education School
11 Spencer Lane
Annandale, NJ 08801
(908) 832-7200
View Profile

Annandale, NJ Private School Trends

3
Private Schools
417
Students
9
Avg. Class Size
12%
Students of Color
16:1
Student-Teacher Ratio
Download town snapshot: CSV | XML | JSON Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission.
Enrollment & Diversity
Category
This Town (Annandale)
This State (NJ)
# Schools
3 Schools
1,374 Schools
# Students
417 Students
216,282 Students
% Students of Color
12%
40%
0.55
0.63
Show more data/charts: racial breakdown
# American Indian Students
1 Student
942 Students
% American Indian Students
<1%
<1%
# Asian Students
15 Students
11,318 Students
% Asian Students
3%
5%
# Hispanic Students
21 Students
15,574 Students
% Hispanic Students
4%
7%
# Black Students
3 Students
14,112 Students
% Black Students
1%
7%
# White Students
280 Students
116,208 Students
% White Students
58%
54%
# Hawaiian Students
0 Students
292 Students
% Hawaiian Students
0%
<1%
# Others Students
162 Students
58,607 Students
% of Others Students
34%
27%
All Ethnic Groups
Academics
# Teachers
38 Teachers
20,271 Teachers
Average Student-Teacher Ratio
16:1
11:1
Average Class Size
9 students
14 students
Admissions & Athletics
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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