For the 2025 school year, there are 71 private schools serving 11,210 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 $31,763, which is higher than the New Jersey private school average tuition cost of $18,788.
Top Ranked Mercer County Private Schools (2025)
School
Location
Quick Facts
1200 Stuart Rd
Princeton, NJ 08540
(609) 921-2330
Princeton, NJ 08540
(609) 921-2330
Gr: NS-12 | 275 students Avg. class size: 12 students Sports: 9 | Extracurrculars: 38 Tuition & acceptance rate listed
75 Mapleton Road, Building 2
Princeton, NJ 08540
(609) 924-6111
Princeton, NJ 08540
(609) 924-6111
Gr: PK-12 | 369 students Avg. class size: 16 students Sports: 6 | Extracurrculars: 11 Tuition listed
116 Stanhope St.
Princeton, NJ 08540
(877) 673-8893
Princeton, NJ 08540
(877) 673-8893
Gr: 6-12 | 32 students Avg. class size: 1 student Tuition listed
4101 Princeton Pike
Princeton, NJ 08540
(609) 924-2449
Princeton, NJ 08540
(609) 924-2449
Gr: PK-8 Avg. class size: 12 students Sports: 7 | Extracurrculars: 17 Tuition listed
75 Mapleton Rd
Princeton, NJ 08540
(609) 430-3001
Princeton, NJ 08540
(609) 430-3001
Gr: NS-8 | 186 students Avg. class size: 14 students Sports: 1 | Extracurrculars: 10 Tuition & acceptance rate listed
176 Edgerstoune Road
Princeton, NJ 08540
(609) 921-7600
Princeton, NJ 08540
(609) 921-7600
Gr: 6-12 | 655 students Avg. class size: 13 students Sports: 15 | Extracurrculars: 54 Tuition listed
800 North Road
Pennington, NJ 08534
(609) 566-6000
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
Lawrence Township, NJ 08648
(609) 895-2030
Gr: 9-12 | 824 students Avg. class size: 11 students Sports: 22 Tuition & acceptance rate listed
601 Lawrence Rd
Lawrence Township, NJ 08648
(609) 882-7900
Lawrence Township, NJ 08648
(609) 882-7900
Gr: 9-12 | 875 students Avg. class size: 21 students Sports: 20 | Extracurrculars: 65 Tuition & acceptance rate listed
3800 E State Street Extension
Trenton, NJ 08619
(609) 587-4140
Trenton, NJ 08619
(609) 587-4140
Gr: PK-8 | 248 students
201 S Main St
Hightstown, NJ 08520
(609) 944-7555
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.]( "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
Pennington, NJ 08534
(609) 737-6128
Gr: 6-12 | 541 students Avg. class size: 13 students Sports: 16 | Extracurrculars: 1 Tuition & acceptance rate listed
650 Great Road
Princeton, NJ 08540
(609) 924-6700
Princeton, NJ 08540
(609) 924-6700
Gr: PK-12 | 953 students Avg. class size: 13 students Sports: 17 | Extracurrculars: 5 Tuition & acceptance rate listed
St. Gregory The Great Academy
(Catholic)
4680 Nottingham Way
Trenton, NJ 08690
(609) 587-1131
Trenton, NJ 08690
(609) 587-1131
Gr: PK-8 | 476 students
St. Paul School Of Princeton![St. Paul School Of Princeton Photo]( "St. Paul School Of Princeton Photo")
(Catholic)
218 Nassau St
Princeton, NJ 08542
(609) 921-7587
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
Trenton, NJ 08610
(609) 585-7733
Gr: PK-8 | 186 students Sports: 2 | Extracurrculars: 1
177 Leonard Ave
Trenton, NJ 08610
(604) 586-5888
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
Trenton, NJ 08610
(609) 586-3075
Gr: 9-12 | 277 students Avg. class size: 20 students Tuition listed
376 W. Upper Ferry Road
Trenton, NJ 08628
(609) 882-1700
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]( "Villa Victoria Lower School Photo")
All-girls (Catholic)
376 W Upper Ferry Rd
Trenton, NJ 08628
(609) 882-1700
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
Hightstown, NJ 08520
(609) 301-5711
Gr: NS-K
The Bridge Academy![The Bridge Academy Photo - Social Studies Class]( "The Bridge Academy Photo - Social Studies Class")
Special Education School
1958-B Lawrenceville Rd
Lawrence Township, NJ 08648
(609) 844-0770
Lawrence Township, NJ 08648
(609) 844-0770
Gr: 3-12 | 70 students Avg. class size: 4 students Tuition listed
Cambridge School![Cambridge School Photo]( "Cambridge School Photo")
Special Education School
100 Straube Center Blvd
Pennington, NJ 08534
(609) 730-9553
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
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
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
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
Princeton Junction, NJ 08550
(609) 443-8900
Gr: K-3 | 40 students
87 Pearson Dr
Trenton, NJ 08610
(609) 888-0101
Trenton, NJ 08610
(609) 888-0101
Gr: 6-12 | 22 students
2 Merwick Road
Princeton, NJ 08540
(609) 987-0099
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.]( "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
Trenton, NJ 08690
(609) 585-3353
Gr: PK-8 | 238 students Avg. class size: 20 students Sports: 2 | Extracurrculars: 6
29 Emmons Drive
Princeton, NJ 08540
(609) 443-1200
Princeton, NJ 08540
(609) 443-1200
Gr: PK-K | 65 students
The Goddard School![The Goddard School Photo]( "The Goddard School Photo")
Daycare / Preschool
1306 Windsor-edinburg Road
Princeton Junction, NJ 08550
(609) 443-1200
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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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
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
Trenton, NJ 08618
(609) 882-2288
Gr: 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
Gr: 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
Gr: 9-12
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
Gr: K-12 | 38 students Tuition listed
Holy Angels School (Closed 2004)
(Catholic)
10 New Cedar Lane
Trenton, NJ 08610
(609) 396-8916
Trenton, NJ 08610
(609) 396-8916
Gr: 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
Gr: 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
Gr: NS-PK
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
Gr: NS | 131 students
Mercer Christian Academy (Closed 2006)
(Christian)
11 Buttonwood Drive
Trenton, NJ 08638
(609) 882-7300
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
Trenton, NJ 08638
(609) 771-4300
Gr: 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?
71 private schools are located in Mercer County.
How much do private schools cost in Mercer County?
The average tuition cost is $31,763, which is higher than the New Jersey private school average tuition cost of $18,788.
How diverse are private schools in Mercer County?
Mercer County private schools are approximately 44% 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?
Which private schools in Mercer County are often viewed compared to one another?
Popular comparisons of private schools in Mercer County include: The Hun School Of Princeton vs. Princeton Day School, Harmony School At Princeton vs. Chapin School, Princeton Day School vs. The Hun School Of Princeton
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