The Lewis School Of Princeton Photo

Best Mercer County Private Schools (2026)

For the 2026 school year, there are 71 private schools serving 11,210 students in Mercer County, NJ (there are 113 public schools, serving 59,177 public students). 16% of all K-12 students in Mercer County, NJ are educated in private schools (compared to the NJ state average of 14%).
The top-ranked private schools in Mercer County, NJ include The Lawrenceville School, Stuart Country Day School, and Peddie School.
The average tuition cost is $33,367, which is higher than the New Jersey private school average tuition cost of $18,801.
33% of private schools in Mercer County, NJ are religiously affiliated (most commonly Catholic and Islamic).

Top-Ranked Mercer County Private Schools (2026)

School
Location
Quick Facts
Stuart Country Day School
Stuart Country Day School Photo - The front of Stuart Country Day School of the Sacred Heart in Princeton, NJ.
(Catholic)
(6)
1200 Stuart Rd
Princeton, NJ 08540
(609) 921-2330
Gr: NS-12 | 275 students Avg. class size: 12 students Sports: 9 | Extracurrculars: 38 Tuition & acceptance rate listed
The Wilberforce School
The Wilberforce School Photo
(Christian)
(10)
75 Mapleton Road, Building 2
Princeton, NJ 08540
(609) 924-6111
Gr: PK-12 | 369 students Avg. class size: 16 students Sports: 6 | Extracurrculars: 11 Tuition listed
Fusion Academy Princeton
Fusion Academy Princeton Photo - Students get to be up close to everything in our science lab. In the one-to-one classroom students are always involved in experiments and have a hands-on approach to learning. We have college-level tools available and the world can be their classroom if they choose to venture out of the science lab.
Alternative School
(1)
116 Stanhope St.
Princeton, NJ 08540
(877) 673-8893
Gr: 6-12 | 32 students Avg. class size: 1 student Tuition listed
Chapin School
Chapin School Photo
(3)
4101 Princeton Pike
Princeton, NJ 08540
(609) 924-2449
Gr: PK-8 Avg. class size: 12 students Sports: 7 | Extracurrculars: 17 Tuition listed
French American School of Princeton
French American School of Princeton Photo - The FASP campus is a beautiful 42-acre site next to Lake Carnegie in Princeton, NJ.
Special Program Emphasis
(5)
75 Mapleton Rd
Princeton, NJ 08540
(609) 430-3001
Gr: NS-8 | 186 students Avg. class size: 14 students Sports: 1 | Extracurrculars: 10 Tuition & acceptance rate listed
The Hun School Of Princeton
(2)
176 Edgerstoune Road
Princeton, NJ 08540
(609) 921-7600
Gr: 6-12 | 698 students Avg. class size: 16 students Sports: 15 | Extracurrculars: 54 Tuition listed
Laurel School Of Princeton, The
Laurel School Of Princeton, The Photo
Special Education School
(2)
800 North Road
Pennington, NJ 08534
(609) 566-6000
Gr: 1-8 | 21 students Extracurrculars: 4 Tuition listed
2500 Main Street
Lawrence Township, NJ 08648
(609) 895-2030
Gr: 9-12 | 844 students Avg. class size: 11 students Sports: 22 Tuition & acceptance rate listed
Notre Dame High School
Notre Dame High School Photo
(Catholic)
(4)
601 Lawrence Rd
Lawrence Township, NJ 08648
(609) 882-7900
Gr: 9-12 | 875 students Avg. class size: 21 students Sports: 21 | Extracurrculars: 65 Tuition & acceptance rate listed
Our Lady Of Sorrows School
(Catholic)
(3)
3800 E State Street Extension
Trenton, NJ 08619
(609) 587-4140
Gr: PK-8 | 248 students
Peddie School
Peddie School Photo - With an average class size of 12 and a student-to-faculty ratio of 6:1, Peddie?'s rigorous and innovative academic program continues to evolve to meet the demands of an ever-changing world.
201 S Main St
Hightstown, NJ 08520
(609) 944-7555
Gr: 9-12 | 532 students Avg. class size: 12 students Sports: 15 | Extracurrculars: 44 Tuition & acceptance rate listed
The Pennington School
The Pennington School Photo - Founded in 1838, The Pennington School is an independent, coeducational school serving day and boarding students in grades 6 through 12.
(Methodist)
112 W Delaware Avenue
Pennington, NJ 08534
(609) 737-6128
Gr: 6-12 | 541 students Avg. class size: 13 students Sports: 16 | Extracurrculars: 1 Tuition & acceptance rate listed
Princeton Day School
Princeton Day School Photo - Commencement on the Colross Lawn
(2)
650 Great Road
Princeton, NJ 08540
(609) 924-6700
Gr: PK-12 | 972 students Avg. class size: 13 students Sports: 16 | Extracurrculars: 17 Tuition & acceptance rate listed
St. Gregory The Great Academy
(Catholic)
4680 Nottingham Way
Trenton, NJ 08690
(609) 587-1131
Gr: PK-8 | 476 students
St. Paul School Of Princeton
St. Paul School Of Princeton Photo
(Catholic)
218 Nassau St
Princeton, NJ 08542
(609) 921-7587
Gr: K-8 | 278 students Avg. class size: 15 students Sports: 5 | Extracurrculars: 5 Tuition listed
St. Raphael School
(Catholic)
151 Gropp Ave
Trenton, NJ 08610
(609) 585-7733
Gr: PK-8 | 186 students Sports: 2 | Extracurrculars: 1
177 Leonard Ave
Trenton, NJ 08610
(604) 586-5888
Gr: PK-8 | 278 students Avg. class size: 15 students Acceptance rate listed
175 Leonard Avenue
Trenton, NJ 08610
(609) 586-3075
Gr: 9-12 | 277 students Avg. class size: 20 students Tuition listed
Villa Victoria Academy
Villa Victoria Academy Photo - The Religious Teachers Filippini work and teach at Villa Victoria Academy.
All-girls (Catholic)
(10)
376 W. Upper Ferry Road
Trenton, NJ 08628
(609) 882-1700
Gr: 6-12 Avg. class size: 10 students Sports: 7 | Extracurrculars: 15 Tuition & acceptance rate listed
Villa Victoria Lower School
Villa Victoria Lower School Photo
All-girls (Catholic)
376 W Upper Ferry Rd
Trenton, NJ 08628
(609) 882-1700
Gr: 6-12 | 123 students Avg. class size: 8 students Acceptance rate listed
Apple Montessori Schools East Windsor
Montessori School
300D Princeton Hightstown Road
Hightstown, NJ 08520
(609) 301-5711
Gr: NS-K
The Bridge Academy
The Bridge Academy Photo - Social Studies Class
Special Education School
1958-B Lawrenceville Rd
Lawrence Township, NJ 08648
(609) 844-0770
Gr: 3-12 | 70 students Avg. class size: 4 students Tuition listed
Cambridge School
Cambridge School Photo
Special Education School
100 Straube Center Blvd
Pennington, NJ 08534
(609) 730-9553
Gr: 1-12 | 137 students Avg. class size: 7 students Sports: 6 Tuition listed
Capital Health System Children's Center
Daycare / Preschool
471 Parkway Ave
Trenton, NJ 08618
(609) 695-3711
Gr: K | 108 students Avg. class size: 20 students
Child Development Center At Bristol Myers Squibb
Alternative School
Route 206 & Province Line Rd.
Princeton, NJ 08540
(609) 252-6200
Gr: K | 14 students
Child Development Center Bms
Daycare / Preschool
311 Pennington Rocky Hill Rd
Pennington, NJ 08534
(609) 818-6200
Gr: K-1 | 65 students
Children's House Of The Windsors
Montessori School
270 Village Rd E
Princeton Junction, NJ 08550
(609) 443-8900
Gr: K-3 | 40 students
1550 Stuyvesant Ave
Trenton, NJ 08618
(609) 643-0428
Gr: PK-8 | 214 students
Delaware Valley School For Exceptional Children
Special Education School
(1)
87 Pearson Dr
Trenton, NJ 08610
(609) 888-0101
Gr: 6-12 | 22 students
Eden School
Special Education School
(1)
2 Merwick Road
Princeton, NJ 08540
(609) 987-0099
Gr: Inquire with school | 76 students Avg. class size: 3 students
Faith Christian Academy
Faith Christian Academy Photo - Everyone is welcome to attend our 2024 Open House on Monday, March 11th from 5 - 7 pm.
(Baptist)
2111 Kuser Road
Trenton, NJ 08690
(609) 585-3353
Gr: PK-8 | 238 students Avg. class size: 20 students Sports: 2 | Extracurrculars: 6
The Goddard School
The Goddard School Photo
Daycare / Preschool
3564 Quakerbridge Road
Trenton, NJ 08619
(609) 588-0880
Gr: NS-K
The Goddard School
The Goddard School Photo
Daycare / Preschool
2500 Kuser Road
Trenton, NJ 08691
(609) 631-9311
Gr: NS-K
The Goddard School
The Goddard School Photo
Daycare / Preschool
(1)
29 Emmons Drive
Princeton, NJ 08540
(609) 443-1200
Gr: PK-K | 65 students
The Goddard School
The Goddard School Photo
Daycare / Preschool
1306 Windsor-edinburg Road
Princeton Junction, NJ 08550
(609) 443-1200
Gr: NS-K Avg. class size: 15 students
Show 36 more private schools in Mercer County, NJ (out of 71 total schools)
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[+] Show Closed Private Schools in Mercer County, New Jersey

Mercer County Private Schools (Closed)

School
Location
Quick Facts
Capital Kids Daycare & Preschool (Closed 2015)
Daycare / Preschool (Pentecostal)
1380 Whitehorse Hamilton Square Rd
Trenton, NJ 08690
(609) 587-0223
Gr: PK-K | 32 students Avg. class size: 7 students Tuition listed
Childrens Day School (Closed 2024)
Special Education School
1925 Pennington Rd
Trenton, NJ 08618
(609) 882-2288
Gr: NS-8 | 53 students
300D Princeton Hightstown Rd
Hightstown, NJ 08520
(609) 448-4333
Gr: NS | 31 students
Garden State Academy (Closed 2004)
(Seventh Day Adventist)
2160 Brunswick Ave.
Lawrence Township, NJ 08648
(609) 392-7131
Gr: 9-12
The Garvey School (Closed 2010)
Special Program Emphasis
26 S Warren St 2nd Floor
Trenton, NJ 08608
(609) 792-9038
Gr: K-12 | 38 students Tuition listed
10 New Cedar Lane
Trenton, NJ 08610
(609) 396-8916
Gr: PK-8 | 305 students
22 Grand St
Trenton, NJ 08611
(609) 393-8407
Gr: PK-8 | 254 students
300 D Princeton-Hightstown Rd.
Hightstown, NJ 08520
(609) 448-4333
Gr: NS-PK
1440 Lower Ferry Rd
Trenton, NJ 08618
(609) 530-9696
Gr: NS | 131 students
11 Buttonwood Drive
Trenton, NJ 08638
(609) 882-7300
Gr: PK-12 | 200 students Avg. class size: 14 students Tuition & acceptance rate listed
Sister Georgine School (Closed 2010)
Special Education School
180B Ewingville Road
Trenton, NJ 08638
(609) 771-4300
Gr: 1-12 | 10 students

Overview

This County (Mercer County)
This State (NJ)
# Schools
73 Schools

Student Body:

# Students
11,210 Students
217,867 Students
% Average Students of Color
47%
40%

Academics and Faculty:

# Teachers
1,501 Teachers
20,239 Teachers
Average Student-Teacher Ratio
8:1
11:1
% Average Faculty w/Advanced Degree
58%
54%
Average Class Size
13 students
14 students
Average Number of AP Courses
17 courses
15 courses
Average SAT score
1342
(Out of 1600)
1262
Average ACT score
29
(Out of 36)
29

Tuition and Acceptance Rate:

Average Yearly Tuition Cost
$33,367
$18,801
Average Summer Program Cost
$396
$869
Average % on Financial Aid
37%
27%
Average Financial Aid Grant
$17,119
$16,414
Average Acceptance Rate
67%
78%
Average Endowment Size
$354.83 million
$57.49 million

Students by Ethnicity:

0.68
0.63
# American Indian Students
16 Students
942 Students
% American Indian Students
n/a
1%
# Asian Students
1,027 Students
11,318 Students
% Asian Students
9%
5%
# Hispanic Students
799 Students
15,575 Students
% Hispanic Students
7%
7%
# Black Students
1,301 Students
14,114 Students
% Black Students
12%
7%
# White Students
5,632 Students
116,454 Students
% White Students
51%
53%
# Hawaiian Students
7 Students
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
2,353 Students
59,277 Students
% of Others Students
21%
27%
All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars
17 extracurriculars
12 extracurriculars
Average Number of Sports
8 sports
7 sports

Frequently Asked Questions

What are the top-ranked private schools in Mercer County, NJ?
The top-ranked private schools in Mercer County, NJ include The Lawrenceville School, Stuart Country Day School, and Peddie School.
How many private schools are located in Mercer County?
71 private schools are located in Mercer County.
How much do private schools cost in Mercer County?
The average tuition cost is $33,367, which is higher than the New Jersey private school average tuition cost of $18,801.
How diverse are private schools in Mercer County?
Mercer County private schools are approximately 47% minority students, which is higher than the New Jersey private school average of 40%.
What percentage of students in Mercer County go to private school?
16% of all K-12 students in Mercer County are educated in private schools (compared to the NJ state average of 14%).
What percentage of private schools are religiously affiliated in Mercer County?
33% of private schools in Mercer County are religiously affiliated (most commonly Catholic and Islamic).
Which private schools in Mercer County are often viewed compared to one another?

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