For the 2025 school year, there are 70 private schools serving 10,944 students in Mercer County, NJ (there are 115 public schools, serving 59,521 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, Princeton Day School, and Peddie School.
The average tuition cost is $31,674, which is higher than the New Jersey private school average tuition cost of $16,313.
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.
Top Ranked Mercer County Private Schools (2025)
School
Location
Grades
Students
1200 Stuart Rd
Princeton, NJ 08540
(609) 921-2330
Princeton, NJ 08540
(609) 921-2330
Grades: NS-12
| 275 students
75 Mapleton Road, Building 2
Princeton, NJ 08540
(609) 924-6111
Princeton, NJ 08540
(609) 924-6111
Grades: PK-12
| 369 students
116 Stanhope St.
Princeton, NJ 08540
(877) 673-8893
Princeton, NJ 08540
(877) 673-8893
Grades: 6-12
| 32 students
176 Edgerstoune Road
Princeton, NJ 08540
(609) 921-7600
Princeton, NJ 08540
(609) 921-7600
Grades: 6-12
| 655 students
800 North Road
Pennington, NJ 08534
(609) 566-6000
Pennington, NJ 08534
(609) 566-6000
Grades: 1-8
| 21 students
2500 Main Street
Lawrence Township, NJ 08648
(609) 895-2030
Lawrence Township, NJ 08648
(609) 895-2030
Grades: 9-12
| 824 students
601 Lawrence Rd
Lawrence Township, NJ 08648
(609) 882-7900
Lawrence Township, NJ 08648
(609) 882-7900
Grades: 9-12
| 875 students
3800 E State Street Extension
Trenton, NJ 08619
(609) 587-4140
Trenton, NJ 08619
(609) 587-4140
Grades: PK-8
| 248 students
The Pennington School
(Methodist)
112 W Delaware Avenue
Pennington, NJ 08534
(609) 737-6128
Pennington, NJ 08534
(609) 737-6128
Grades: 6-12
| 541 students
St. Gregory The Great Academy
(Catholic)
4680 Nottingham Way
Trenton, NJ 08690
(609) 587-1131
Trenton, NJ 08690
(609) 587-1131
Grades: PK-8
| 476 students
St. Paul School Of Princeton
(Catholic)
218 Nassau St
Princeton, NJ 08542
(609) 921-7587
Princeton, NJ 08542
(609) 921-7587
Grades: K-8
| 278 students
177 Leonard Ave
Trenton, NJ 08610
(604) 586-5888
Trenton, NJ 08610
(604) 586-5888
Grades: PK-8
| 278 students
175 Leonard Avenue
Trenton, NJ 08610
(609) 586-3075
Trenton, NJ 08610
(609) 586-3075
Grades: 9-12
| 277 students
376 W. Upper Ferry Road
Trenton, NJ 08628
(609) 882-1700
Trenton, NJ 08628
(609) 882-1700
Grades: 6-12
| n/a students
Apple Montessori Schools East Windsor
Montessori School
300D Princeton Hightstown Road
Hightstown, NJ 08520
(609) 301-5711
Hightstown, NJ 08520
(609) 301-5711
Grades: NS-K
| n/a students
The Bridge Academy
Special Education School
1958-B Lawrenceville Rd
Lawrence Township, NJ 08648
(609) 844-0770
Lawrence Township, NJ 08648
(609) 844-0770
Grades: 3-12
| 70 students
Cambridge School
Special Education School
100 Straube Center Blvd
Pennington, NJ 08534
(609) 730-9553
Pennington, NJ 08534
(609) 730-9553
Grades: 1-12
| 137 students
Capital Health System Children's Center
Daycare / Preschool
471 Parkway Ave
Trenton, NJ 08618
(609) 695-3711
Trenton, NJ 08618
(609) 695-3711
Grades: K
| 108 students
Child Development Center At Bristol Myers Squibb
Alternative School
Route 206 & Province Line Rd.
Princeton, NJ 08540
(609) 252-6200
Princeton, NJ 08540
(609) 252-6200
Grades: K
| 14 students
Child Development Center Bms
Daycare / Preschool
311 Pennington Rocky Hill Rd
Pennington, NJ 08534
(609) 818-6200
Pennington, NJ 08534
(609) 818-6200
Grades: K-1
| 65 students
Children's House Of The Windsors
Montessori School
270 Village Rd E
Princeton Junction, NJ 08550
(609) 443-8900
Princeton Junction, NJ 08550
(609) 443-8900
Grades: K-3
| 40 students
87 Pearson Dr
Trenton, NJ 08610
(609) 888-0101
Trenton, NJ 08610
(609) 888-0101
Grades: 6-12
| 22 students
2 Merwick Road
Princeton, NJ 08540
(609) 987-0099
Princeton, NJ 08540
(609) 987-0099
Grades: Inquire with school
| 76 students
Faith Christian Academy
(Baptist)
2111 Kuser Road
Trenton, NJ 08690
(609) 585-3353
Trenton, NJ 08690
(609) 585-3353
Grades: PK-8
| 238 students
75 Mapleton Rd
Princeton, NJ 08540
(609) 430-3001
Princeton, NJ 08540
(609) 430-3001
Grades: NS-8
| 167 students
The Goddard School
Daycare / Preschool
3564 Quakerbridge Road
Trenton, NJ 08619
(609) 588-0880
Trenton, NJ 08619
(609) 588-0880
Grades: NS-K
| n/a students
The Goddard School
Daycare / Preschool
2500 Kuser Road
Trenton, NJ 08691
(609) 631-9311
Trenton, NJ 08691
(609) 631-9311
Grades: NS-K
| n/a students
29 Emmons Drive
Princeton, NJ 08540
(609) 443-1200
Princeton, NJ 08540
(609) 443-1200
Grades: PK-K
| 65 students
The Goddard School
Daycare / Preschool
1306 Windsor-edinburg Road
Princeton Junction, NJ 08550
(609) 443-1200
Princeton Junction, NJ 08550
(609) 443-1200
Grades: NS-K
| n/a students
The Goddard School Of Ewing
Daycare / Preschool
158 Scotch Road
Trenton, NJ 08628
(609) 883-6800
Trenton, NJ 08628
(609) 883-6800
Grades: PK-K
| 31 students
Show 35 more private schools in Mercer County, NJ (out of 70 total schools)
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Mercer County Private Schools (Closed)
School
Location
Grades
Students
Capital Kids Daycare & Preschool (Closed 2015)
Daycare / Preschool (Pentecostal)
1380 Whitehorse Hamilton Square Rd
Trenton, NJ 08690
(609) 587-0223
Trenton, NJ 08690
(609) 587-0223
Grades: PK-K
| 32 students
Childrens Day School (Closed 2024)
Special Education School
1925 Pennington Rd
Trenton, NJ 08618
(609) 882-2288
Trenton, NJ 08618
(609) 882-2288
Grades: NS-8
| 53 students
E Windsor Knowledge Beginnings (Closed 2023)
Daycare / Preschool
300D Princeton Hightstown Rd
Hightstown, NJ 08520
(609) 448-4333
Hightstown, NJ 08520
(609) 448-4333
Grades: NS
| 31 students
Garden State Academy (Closed 2004)
(Seventh Day Adventist)
2160 Brunswick Ave.
Lawrence Township, NJ 08648
(609) 392-7131
Lawrence Township, NJ 08648
(609) 392-7131
Grades: 9-12
| n/a students
The Garvey School (Closed 2010)
Special Program Emphasis
26 S Warren St 2nd Floor
Trenton, NJ 08608
(609) 792-9038
Trenton, NJ 08608
(609) 792-9038
Grades: K-12
| 38 students
Holy Angels School (Closed 2004)
(Catholic)
10 New Cedar Lane
Trenton, NJ 08610
(609) 396-8916
Trenton, NJ 08610
(609) 396-8916
Grades: PK-8
| 305 students
Holy Cross School (Closed 2004)
(Catholic)
22 Grand St
Trenton, NJ 08611
(609) 393-8407
Trenton, NJ 08611
(609) 393-8407
Grades: PK-8
| 254 students
Knowledge Beginnings (Closed 2025)
Daycare / Preschool
300 D Princeton-Hightstown Rd.
Hightstown, NJ 08520
(609) 448-4333
Hightstown, NJ 08520
(609) 448-4333
Grades: NS-PK
| n/a students
Lakeview Child Center At Ewing (Closed 2014)
Daycare / Preschool
1440 Lower Ferry Rd
Trenton, NJ 08618
(609) 530-9696
Trenton, NJ 08618
(609) 530-9696
Grades: NS
| 131 students
Mercer Christian Academy (Closed 2006)
(Christian)
11 Buttonwood Drive
Trenton, NJ 08638
(609) 882-7300
Trenton, NJ 08638
(609) 882-7300
Grades: PK-12
| 200 students
Sister Georgine School (Closed 2010)
Special Education School
180B Ewingville Road
Trenton, NJ 08638
(609) 771-4300
Trenton, NJ 08638
(609) 771-4300
Grades: 1-12
| 10 students
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, Princeton Day School, and Peddie School.
How many private schools are located in Mercer County?
70 private schools are located in Mercer County.
How much do private schools cost in Mercer County?
The average tuition cost is $31,674, which is higher than the New Jersey private school average tuition cost of $16,313.
How diverse are private schools in Mercer County?
Mercer County private schools are approximately 43% minority students, which is higher than the New Jersey private school average of 39%.
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?
Which private schools in Mercer County are often viewed compared to one another?
Popular comparisons of private schools in Mercer County include: Harmony School At Princeton vs. Chapin School, The Hun School Of Princeton vs. Princeton Day School, Princeton Day School vs. The Hun School Of Princeton
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