Blair Academy Photo

Best Warren County Private Schools (2026)

For the 2026 school year, there are 10 private schools serving 1,056 students in Warren County, NJ (there are 40 public schools, serving 15,349 public students). 6% of all K-12 students in Warren County, NJ are educated in private schools (compared to the NJ state average of 14%).
The top-ranked private schools in Warren County, NJ include Blair Academy and Sts Philip & James School.
The average acceptance rate is 15%, which is lower than the New Jersey private school average acceptance rate of 78%.
18% of private schools in Warren County, NJ are religiously affiliated (most commonly Presbyterian and Catholic).

Top-Ranked Warren County Private Schools (2026)

School
Location
Quick Facts
Blair Academy
Blair Academy Photo
(Presbyterian)
2 Park St
Blairstown, NJ 07825
(908) 362-2009
Gr: 9-12 | 465 students Avg. class size: 11 students Sports: 20 | Extracurrculars: 25 Tuition & acceptance rate listed
Sts Philip & James School
(Catholic)
(4)
137 Roseberry St
Phillipsburg, NJ 08865
(908) 859-6064
Gr: PK-8 | 225 students
Busy Bees Learning Center
Daycare / Preschool
205 Strykers Rd
Phillipsburg, NJ 08865
(908) 213-6200
Gr: K | 94 students
Children's Center
Daycare / Preschool
1 Main St
Blairstown, NJ 07825
(908) 310-7919
Gr: PK-K | 23 students Avg. class size: 19 students
Friendship Center
Daycare / Preschool
420 Schooleys Mountain Rd
Hackettstown, NJ 07840
(908) 852-2221
Gr: PK | 7 students
Kiddie Academy Of Lopatcong
Daycare / Preschool
424 State Route 57
Phillipsburg, NJ 08865
(908) 387-0890
Gr: K-1 | 30 students Avg. class size: 12 students Tuition listed
KinderCare of Mt. Olive
KinderCare of Mt. Olive Photo - Front Entrance
Daycare / Preschool
7 Naughright Rd
Hackettstown, NJ 07840
(908) 684-9273
Gr: NS-PK | 103 students Tuition listed
Little Bears Learning Center
Daycare / Preschool
309 Hazen Rd
Hackettstown, NJ 07840
(908) 835-9010
Gr: PK-K | 13 students
Stewartsville KinderCare
Daycare / Preschool
1733 Washington Valley Dr
Stewartsville, NJ 08886
(908) 859-4005
Gr: NS-PK
Washington Kid Care & Learning Center
Daycare / Preschool
70-72 E Washington Ave
Washington, NJ 07882
(908) 689-1777
Gr: PK-K | 77 students
[+] Show Closed Private Schools in Warren County, New Jersey

Warren County Private Schools (Closed)

School
Location
Quick Facts
159 Liberty St
Hackettstown, NJ 07840
(908) 852-4791
Gr: PK-8 | 150 students

Overview

This County (Warren County)
This State (NJ)
# Schools
11 Schools

Student Body:

# Students
1,056 Students
217,867 Students
% Average Students of Color
27%
40%

Academics and Faculty:

# Teachers
120 Teachers
20,239 Teachers
Average Student-Teacher Ratio
8:1
11:1
% Average Faculty w/Advanced Degree
3%
54%
Average Class Size
14 students
14 students
Average Number of AP Courses
54 courses
15 courses

Tuition and Acceptance Rate:

Average Yearly Tuition Cost
$48,850
$18,801
Average % on Financial Aid
38%
27%
Average Financial Aid Grant
$40,000
$16,414
Average Acceptance Rate
15%
78%
Average Endowment Size
$145 million
$57.49 million

Students by Ethnicity:

0.63
0.63
# American Indian Students
5 Students
942 Students
% American Indian Students
1%
1%
# Asian Students
14 Students
11,318 Students
% Asian Students
3%
5%
# Hispanic Students
19 Students
15,575 Students
% Hispanic Students
4%
7%
# Black Students
19 Students
14,114 Students
% Black Students
4%
7%
# White Students
195 Students
116,454 Students
% White Students
43%
53%
# Hawaiian Students
4 Students
292 Students
% Hawaiian Students
1%
n/a
# Two or more races Students
n/a
n/a
% of Two or more races Students
n/a
n/a
# Others Students
202 Students
59,277 Students
% of Others Students
44%
27%
All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars
25 extracurriculars
12 extracurriculars
Average Number of Sports
20 sports
7 sports

Frequently Asked Questions

What are the top-ranked private schools in Warren County, NJ?
The top-ranked private schools in Warren County, NJ include Blair Academy and Sts Philip & James School.
How many private schools are located in Warren County?
10 private schools are located in Warren County.
How diverse are private schools in Warren County?
Warren County private schools are approximately 27% minority students, which is lower than the New Jersey private school average of 40%.
What percentage of students in Warren County go to private school?
6% of all K-12 students in Warren County are educated in private schools (compared to the NJ state average of 14%).
What percentage of private schools are religiously affiliated in Warren County?
18% of private schools in Warren County are religiously affiliated (most commonly Presbyterian and Catholic).
Which private schools in Warren County are often viewed compared to one another?

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