For the 2025-26 school year, there are 21 private high schools serving 6,054 students in Mercer County, NJ.
The top ranked private high schools in Mercer County, NJ include The Lawrenceville School, Princeton Day School, and Peddie School.
The average tuition cost is $39,951, which is higher than the New Jersey private high school average tuition cost of $22,975.
Top Ranked Mercer County Private High Schools (2025-26)
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
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
2500 Main Street
Lawrence Township, NJ 08648
(609) 895-2030
Lawrence Township, NJ 08648
(609) 895-2030
Gr: 9-12 | 844 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
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
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
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
87 Pearson Dr
Trenton, NJ 08610
(609) 888-0101
Trenton, NJ 08610
(609) 888-0101
Gr: 6-12 | 22 students
The Newgrange School
Special Education School
526 S Olden Ave
Trenton, NJ 08629
(609) 584-1800
Trenton, NJ 08629
(609) 584-1800
Gr: 1-12 | 92 students
Princeton Child Development Institute
Special Education School
300 Cold Soil Rd
Princeton, NJ 08540
(609) 924-6280
Princeton, NJ 08540
(609) 924-6280
Gr: PK-12 | 25 students Avg. class size: 10 students
Princeton International School Of Math And Science
Special Program Emphasis
19 Lambert Dr
Princeton, NJ 08540
(609) 454-5580
Princeton, NJ 08540
(609) 454-5580
Gr: 9-12 | 117 students Tuition listed
SciCore Academy
(1)
156 Maxwell Avenue
Allentown, NJ 08501
(609) 448-8950
Allentown, NJ 08501
(609) 448-8950
Gr: NS-12 Avg. class size: 10 students Tuition & acceptance rate listed
Sprout U School Of The Arts![Sprout U School Of The Arts Photo]( "Sprout U School Of The Arts Photo")
Special Program Emphasis (Catholic)
137 North Broad Street
Trenton, NJ 08609
(609) 960-2004
Trenton, NJ 08609
(609) 960-2004
Gr: NS-12 | 78 students Sports: 22 Tuition listed
The Titusville Academy
Special Education School
86 River Dr
Titusville, NJ 08560
(609) 737-7733
Titusville, NJ 08560
(609) 737-7733
Gr: 3-12 | 57 students Avg. class size: 12 students Sports: 6
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 high schools in Mercer County, NJ?
The top ranked private high schools in Mercer County, NJ include The Lawrenceville School, Princeton Day School, and Peddie School.
How many private high schools are located in Mercer County?
21 private high schools are located in Mercer County.
How much do private high schools cost in Mercer County?
The average tuition cost is $39,951, which is higher than the New Jersey private school average tuition cost of $22,975.
How diverse are private high schools in Mercer County?
Mercer County private high schools are approximately 39% minority students, which is same as the New Jersey private school average of 39%.
What percentage of private high schools are religiously affiliated in Mercer County?
Which private high schools in Mercer County are often viewed compared to one another?
Popular comparisons of private high schools in Mercer County include: The Hun School Of Princeton vs. Princeton Day School, Princeton Day School vs. The Hun School Of Princeton
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