For the 2025-26 school year, there are 90 private schools serving 14,056 students in Union County, NJ (there are 186 public schools, serving 102,682 public students). 12% of all K-12 students in Union County, NJ are educated in private schools (compared to the NJ state average of 14%).
The top ranked private schools in Union County, NJ include Oak Knoll School Of The Holy Child, Kent Place School, and Oak Knoll School of the Holy Child (Lower School).
The average tuition cost is $18,513, which is lower than the New Jersey private school average tuition cost of $18,813.
Top Ranked Union County Private Schools (2025-26)
School
Location
Quick Facts
44 Blackburn Road
Summit, NJ 07901
(908) 522-8100
Summit, NJ 07901
(908) 522-8100
Gr: 7-12 | 323 students Avg. class size: 61 students Sports: 15 | Extracurrculars: 38 Tuition listed
44 Blackburn Road
Summit, NJ 07901
(908) 522-8109
Summit, NJ 07901
(908) 522-8109
Gr: PK-6 | 178 students Avg. class size: 12 students Extracurrculars: 14 Tuition listed
1020 Springfield Ave
Mountainside, NJ 07092
(908) 516-4231
Mountainside, NJ 07092
(908) 516-4231
Gr: 5-8 | 12 students Avg. class size: 5 students Sports: 1 | Extracurrculars: 7 Tuition & acceptance rate listed
10-12 Commerce Drive
Cranford, NJ 07016
(908) 543-0220
Cranford, NJ 07016
(908) 543-0220
Gr: 5-12 | 130 students Avg. class size: 8 students Sports: 6 Tuition listed
Bruriah High School For Girls
All-boys (Jewish)
35 North Avenue
Elizabeth, NJ 07208
(908) 355-4850
Elizabeth, NJ 07208
(908) 355-4850
Gr: 7-12 | 350 students Avg. class size: 15 students Tuition & acceptance rate listed
Cornerstone School Of Summit![Cornerstone School Of Summit Photo - We support children's creative expression.]( "Cornerstone School Of Summit Photo - We support children's creative expression.")
Daycare / Preschool
561 Springfield Ave
Summit, NJ 07901
(908) 277-4400
Summit, NJ 07901
(908) 277-4400
Gr: NS-PK | 654 students Avg. class size: 14 students Extracurrculars: 4 Tuition & acceptance rate listed
Five Points Y M C A
Daycare / Preschool (Christian)
201 Tucker Avenue
Union, NJ 07083
(908) 688-9622
Union, NJ 07083
(908) 688-9622
Gr: PK-K | 80 students
34 Russo Place
Berkeley Heights, NJ 07922
(908) 322-0554
Berkeley Heights, NJ 07922
(908) 322-0554
Gr: K-12 | 100 students Avg. class size: 4 students Extracurrculars: 7 Tuition listed
336 First St.
Westfield, NJ 07090
(908) 233-0484
Westfield, NJ 07090
(908) 233-0484
Gr: PK-8 | 375 students Avg. class size: 15 students Sports: 6 | Extracurrculars: 5 Tuition & acceptance rate listed
The Jardine Academy
Special Education School
373 Clermont Terrace
Union, NJ 07083
(908) 354-5800
Union, NJ 07083
(908) 354-5800
Gr: NS | 62 students
Jcc Of Central New Jersey
Daycare / Preschool (Jewish)
1391 Martine Ave
Scotch Plains, NJ 07076
(908) 889-8800
Scotch Plains, NJ 07076
(908) 889-8800
Gr: PK-K | 240 students Tuition listed
330 Elmora Ave
Elizabeth, NJ 07208
(908) 355-4850
Elizabeth, NJ 07208
(908) 355-4850
Gr: K-8 | 306 students Avg. class size: 18 students
42 Norwood Avenue
Summit, NJ 07901
(908) 273-0900
Summit, NJ 07901
(908) 273-0900
Gr: PK-12 | 640 students Avg. class size: 12 students Tuition & acceptance rate listed
502 West Front St
Plainfield, NJ 07060
(908) 756-7788
Plainfield, NJ 07060
(908) 756-7788
Gr: PK-K | 153 students
1040 Plainfield Ave
Plainfield, NJ 07060
(908) 668-9883
Plainfield, NJ 07060
(908) 668-9883
Gr: PK-12 | 278 students Extracurrculars: 4 Tuition listed
1 Beverly Rd
Summit, NJ 07901
(908) 273-1084
Summit, NJ 07901
(908) 273-1084
Gr: 7-12 | 376 students Tuition & acceptance rate listed
Roselle Catholic High School![Roselle Catholic High School Photo]( "Roselle Catholic High School Photo")
(Catholic)
350 Raritan Rd
Roselle, NJ 07203
(908) 245-2350
Roselle, NJ 07203
(908) 245-2350
Gr: 9-12 | 354 students Avg. class size: 23 students Sports: 13 | Extracurrculars: 32 Tuition & acceptance rate listed
Valley Road
Clark, NJ 07066
(732) 388-1360
Clark, NJ 07066
(732) 388-1360
Gr: PK-8 | 405 students
St. John The Apostle School
(Catholic)
1805 Penbrook Ter
Linden, NJ 07036
(908) 486-6363
Linden, NJ 07036
(908) 486-6363
Gr: PK-8 | 439 students
140 East 3rd Avenue
Roselle, NJ 07203
(908) 245-6560
Roselle, NJ 07203
(908) 245-6560
Gr: PK-8 | 227 students Avg. class size: 18 students Sports: 6 | Extracurrculars: 9 Tuition listed
St. Michael Parish School
(Catholic)
1212 Kelly St
Union, NJ 07083
(908) 688-1063
Union, NJ 07083
(908) 688-1063
Gr: PK-8 | 342 students Avg. class size: 20 students Tuition listed
100 Alden St
Cranford, NJ 07016
(908) 276-9425
Cranford, NJ 07016
(908) 276-9425
Gr: PK-8 | 320 students Tuition listed
540 Washington Ave
Kenilworth, NJ 07033
(908) 276-7220
Kenilworth, NJ 07033
(908) 276-7220
Gr: PK-8 | 313 students
705 Clinton Street
Linden, NJ 07036
(908) 862-1619
Linden, NJ 07036
(908) 862-1619
Gr: K-8 | 150 students Avg. class size: 15 students
Temple Emanu-el Early Childhood Education Program
Daycare / Preschool (Jewish)
756 E Broad St
Westfield, NJ 07090
(908) 232-6770
Westfield, NJ 07090
(908) 232-6770
Gr: PK-K | 141 students
1500 Maple Ave
Hillside, NJ 07205
(973) 923-7568
Hillside, NJ 07205
(973) 923-7568
Gr: K-8 | 41 students Avg. class size: 12 students Sports: 5 | Extracurrculars: 3 Tuition listed
Union Catholic Regional High School
(Catholic)
1600 Martine Avenue
Scotch Plains, NJ 07076
(908) 889-1600
Scotch Plains, NJ 07076
(908) 889-1600
Gr: 9-12 | 740 students Sports: 16 Tuition & acceptance rate listed
The Academy of Our Lady of Peace![The Academy of Our Lady of Peace Photo]( "The Academy of Our Lady of Peace Photo")
(Catholic)
99 South Street
New Providence, NJ 07974
(908) 464-8657
New Providence, NJ 07974
(908) 464-8657
Gr: PK-8 | 212 students Avg. class size: 15 students Sports: 6 | Extracurrculars: 12 Tuition & acceptance rate listed
Blessed Sacrament Elementary School
(Catholic)
1086 North Avenue
Elizabeth, NJ 07201
(908) 352-8629
Elizabeth, NJ 07201
(908) 352-8629
Gr: PK-8 | 225 students
303 Chestnut Street
Roselle, NJ 07203
(908) 241-6470
Roselle, NJ 07203
(908) 241-6470
Gr: PK-4 | 126 students
37 Church Mall
Springfield, NJ 07081
(973) 379-3524
Springfield, NJ 07081
(973) 379-3524
Gr: PK-K | 58 students Avg. class size: 18 students Tuition & acceptance rate listed
Christian Children Institute
Daycare / Preschool (Christian)
Po Box 2852 350 Leland Ave
Plainfield, NJ 07062
(908) 756-7562
Plainfield, NJ 07062
(908) 756-7562
Gr: PK-K | 30 students
Christopher Academy
Montessori School
1390 Terrill Rd
Scotch Plains, NJ 07076
(908) 233-7447
Scotch Plains, NJ 07076
(908) 233-7447
Gr: K-1 | 28 students
Christopher Academy
Montessori School
510 Hillcrest Avenue
Westfield, NJ 07090
(908) 233-7447
Westfield, NJ 07090
(908) 233-7447
Gr: PK-1 | 95 students
Clark KinderCare
Daycare / Preschool
89 Terminal Ave.
Clark, NJ 07066
(732) 340-1900
Clark, NJ 07066
(732) 340-1900
Gr: NS-PK | 34 students
Show 55 more private schools in Union County, NJ (out of 90 total schools)
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Union County Private Schools (Closed)
School
Location
Quick Facts
Bender Memorial Academy (Closed 2004)
(Catholic)
416 Linden Ave
Elizabeth, NJ 07202
(908) 352-4406
Elizabeth, NJ 07202
(908) 352-4406
Gr: PK-8 | 175 students
Benedictine Academy (Closed 2023)
All-girls (Catholic)
840 N Broad St
Elizabeth, NJ 07208
(908) 352-0670
Elizabeth, NJ 07208
(908) 352-0670
Gr: 9-12 | 127 students Avg. class size: 45 students Tuition & acceptance rate listed
Hinder Them Not Montessori School (Closed 2015)
Montessori School (Christian)
225 N 8th St
Kenilworth, NJ 07033
(908) 276-7750
Kenilworth, NJ 07033
(908) 276-7750
Gr: PK-K | 20 students
Holy Spirit School (Closed 2024)
(Catholic)
970 Suburban Road
Union, NJ 07083
(908) 687-8415
Union, NJ 07083
(908) 687-8415
Gr: PK-8 | 124 students Avg. class size: 26 students Tuition & acceptance rate listed
Holycross Christian Nursery School (Closed 2010)
Daycare / Preschool (Evangelical Lutheran Church in America (formerly AELC, ALC, or LCA))
639 Mountain Avenue
Springfield, NJ 07081
(973) 379-7160
Springfield, NJ 07081
(973) 379-7160
Gr: PK-K | 93 students
Little Lambs Preschool And Kindergarten (Closed 2020)
Daycare / Preschool (Lutheran Church Missouri Synod)
229 Cowperthwaite Place
Westfield, NJ 07090
(908) 232-1592
Westfield, NJ 07090
(908) 232-1592
Gr: PK-K | 12 students Avg. class size: 12 students Tuition & acceptance rate listed
Mcauley School (Closed 2010)
Special Education School
107 Westervelt Ave
Plainfield, NJ 07060
(908) 754-4114
Plainfield, NJ 07060
(908) 754-4114
Gr: Inquire with school | 33 students
Messiah Lutheran School (Closed 2004)
(Lutheran Church Missouri Synod)
630 E Front Street
Plainfield, NJ 07060
(908) 755-8430
Plainfield, NJ 07060
(908) 755-8430
Gr: PK-2 | 51 students
227 Center St
Elizabeth, NJ 07202
(908) 352-7419
Elizabeth, NJ 07202
(908) 352-7419
Gr: PK-8 | 167 students
1003 N Broad Street
Elizabeth, NJ 07208
(908) 352-8029
Elizabeth, NJ 07208
(908) 352-8029
Gr: K-8 | 177 students
St. Genevieve School (Closed 2015)
(Catholic)
209 Princeton Rd
Elizabeth, NJ 07208
(908) 355-3355
Elizabeth, NJ 07208
(908) 355-3355
Gr: PK-8 | 210 students
41 S Springfield Ave
Springfield, NJ 07081
(973) 376-5194
Springfield, NJ 07081
(973) 376-5194
Gr: PK-8 | 159 students
101 Westervelt Avenue
Plainfield, NJ 07060
(908) 756-9539
Plainfield, NJ 07060
(908) 756-9539
Gr: K-8 | 155 students
237 S Broad St
Elizabeth, NJ 07202
(908) 352-4350
Elizabeth, NJ 07202
(908) 352-4350
Gr: 9-12 | 184 students Tuition listed
Shim Academy Of Montessori (Closed 2015)
Montessori School
1305 Saint George Ave
Roselle, NJ 07203
(908) 620-0404
Roselle, NJ 07203
(908) 620-0404
Gr: K-4 | 28 students
Frequently Asked Questions
What are the top ranked private schools in Union County, NJ?
The top ranked private schools in Union County, NJ include Oak Knoll School Of The Holy Child, Kent Place School, and Oak Knoll School of the Holy Child (Lower School).
How many private schools are located in Union County?
90 private schools are located in Union County.
How much do private schools cost in Union County?
The average tuition cost is $18,513, which is lower than the New Jersey private school average tuition cost of $18,813.
How diverse are private schools in Union County?
Union County private schools are approximately 45% minority students, which is higher than the New Jersey private school average of 39%.
What percentage of students in Union County go to private school?
12% of all K-12 students in Union County are educated in private schools (compared to the NJ state average of 14%).
What percentage of private schools are religiously affiliated in Union County?
Which private schools in Union County are often viewed compared to one another?
Popular comparisons of private schools in Union County include: Summit Jewish Community Center N School vs. Cornerstone School Of Summit, Roselle Catholic High School vs. Union Catholic Regional High School, Pns&k vs. St. Pauls Day School
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