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Best Union County �� High Schools (2026)

[+] Show Closed �� Schools in Union County, New Jersey

Union County �� Schools (Closed)

School

Location

Quick Facts

Bender Memorial Academy (Closed 2004)

(Catholic)

416 Linden Ave
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

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

Gr: PK-K | 20 students

Holy Spirit School (Closed 2024)

(Catholic)

970 Suburban Road
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

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

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

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

Gr: PK-2 | 51 students

Our Lady Of Guadalupe Academy (Closed 2024)

(Catholic)

227 Center St
Elizabeth, NJ 07202
(908) 352-7419

Gr: PK-8 | 167 students

St. Catherine Elementary School (Closed 2004)

(Catholic)

1003 N Broad Street
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

Gr: PK-8 | 210 students

St. James The Apostle School (Closed 2017)

(Catholic)

41 S Springfield Ave
Springfield, NJ 07081
(973) 376-5194

Gr: PK-8 | 159 students

St. Joseph Elementary School (Closed 2006)

(Catholic)

101 Westervelt Avenue
Plainfield, NJ 07060
(908) 756-9539

Gr: K-8 | 155 students

St. Mary Of The Assumption High School (Closed 2025)

(Catholic)

237 S Broad St
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

Gr: K-4 | 28 students

Overview

This County (Union County)

This State (NJ)

# Schools

18 Schools

View Data

Trends in Total Number of �� High Schools
Year	Union County Total Schools
2025	18
2024	18
2023	20
2022	19
2021	20
2020	21
2019	18
2018	18
2017	18
2016	17
2015	16

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Student Body:

# Students

4,340 Students

75,940 Students

View Data

Trends in the Average Number of Students Per �� High School
Year	Union County Average	New Jersey (NJ) Average	National Average
2025	241	234	253
2024	241	231	245
2023	241	238	247
2022	248	229	257
2021	244	223	249
2020	238	215	235
2019	294	237	242
2018	320	243	238
2017	285	251	246
2016	297	248	241
2015	207	232	220

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% Average Students of Color

45%

40%

View Data

Percentage of Students of Color Trends (2015-2025)
Year	Union County Average	New Jersey (NJ) Average	National Average
2025	45%	40%	32%
2024	45%	39%	31%
2023	47%	39%	31%
2022	44%	38%	30%
2021	46%	38%	30%
2020	47%	38%	29%
2019	41%	37%	29%
2018	38%	35%	28%
2017	40%	39%	30%
2016	40%	39%	30%
2015	42%	39%	30%

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Academics and Faculty:

# Teachers

570 Teachers

9,075 Teachers

Average Student-Teacher Ratio

8:1

View Data

Student-Teacher Ratio Trends (2015-2025)
Year	Union County Average	New Jersey (NJ) Average	National Average
2025	8:1	8:1	10:1
2024	8:1	9:1	10:1
2023	8:1	9:1	10:1
2022	8:1	8:1	10:1
2021	9:1	8:1	10:1
2020	9:1	9:1	10:1
2019	9:1	9:1	10:1
2018	9:1	9:1	10:1
2017	9:1	9:1	10:1
2016	9:1	9:1	10:1
2015	9:1	10:1	10:1

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% Average Faculty w/Advanced Degree

64%

59%

View Data

Percentage of Faculty With Advanced Degrees Trends (2015-2025)
Year	Union County Average	New Jersey (NJ) Average	National Average
2025	64%	59%	57%
2024	66%	58%	57%
2023	63%	59%	57%
2022	63%	60%	56%
2021	63%	59%	56%
2020	57%	58%	56%
2019	57%	59%	55%
2018	57%	59%	55%
2017	56%	58%	55%
2016	52%	55%	54%
2015	78%	57%	54%

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Average Class Size

17 students

13 students

View Data

Class Size Trends (2015-2025)
Year	Union County Average	New Jersey (NJ) Average	National Average
2025	17	13	14
2024	18	13	14
2023	16	13	14
2022	13	13	14
2021	13	13	14
2020	17	13	14
2019	18	13	14
2018	19	13	14
2017	20	13	14
2016	22	13	14
2015	22	13	14

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Average Number of AP Courses

15 courses

16 courses

View Data

Trends in Average Number of AP Courses Offered
Year	Union County Average	New Jersey (NJ) Average	National Average
2025	15	16	13
2024	13	15	12
2023	11	14	12
2022	12	14	12
2021	12	13	12
2020	11	13	12
2019	11	13	11
2018	12	13	11
2017	12	11	11
2016	10	11	11
2015	9	10	10

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Average SAT score

1025

(Out of 1600)

1257

View Data

SAT Score Trends (2015-2025)
Year	Union County Average	New Jersey (NJ) Average	National Average
2025	1,025	1,257	1,233
2024	1,025	1,251	1,231
2023	1,025	1,246	1,229
2022	1,025	1,238	1,230
2021	1,025	1,244	1,230
2020	1,025	1,249	1,227
2019	1,196	1,260	1,226
2018	1,196	1,253	1,226
2017	1,196	1,250	1,233
2016	1,192	1,300	1,308
2015	1,221	1,237	1,265

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Average ACT score

(Out of 36)

View Data

ACT Score Trends (2020-2025)
Year	Union County Average	New Jersey (NJ) Average	National Average
2025	30	29	26
2024	30	28	26
2023	30	28	26
2022	30	28	26
2021	30	28	26
2020	30	28	26

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Tuition and Acceptance Rate:

Average Yearly Tuition Cost

$22,404

$23,776

View Data

Tuition Cost Trends (2015-2025)
Year	Union County Average	New Jersey (NJ) Average	National Average
2025	$22,404	$23,640	$17,997
2024	$18,715	$21,272	$17,011
2023	$15,471	$19,507	$16,191
2022	$10,835	$19,882	$15,821
2021	$9,713	$18,637	$15,331
2020	$9,178	$18,303	$15,046
2019	$9,178	$18,060	$14,791
2018	$11,268	$17,663	$14,527
2017	$14,172	$18,594	$14,161
2016	$10,625	$17,139	$13,713
2015	$6,106	$15,359	$13,065

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Average % on Financial Aid

48%

35%

View Data

Percent on Financial Aid Trends (2015-2025)
Year	Union County Average	New Jersey (NJ) Average	National Average
2025	48%	35%	38%
2024	48%	35%	37%
2023	44%	35%	36%
2022	75%	33%	36%
2021	58%	34%	36%
2020	58%	34%	35%
2019	58%	34%	34%
2018	58%	33%	33%
2017	58%	30%	32%
2016	58%	29%	31%
2015	20%	26%	30%

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Average Financial Aid Grant

$2,000

$25,884

View Data

Financial Aid Grant Trends (2015-2025)
Year	Union County Average	New Jersey (NJ) Average	National Average
2025	$2,000	$25,884	$9,714
2024	$2,000	$26,458	$9,498
2023	$11,880	$12,077	$8,890
2022	$2,000	$11,851	$8,717
2021	$2,250	$10,521	$8,472
2020	$2,250	$10,224	$8,370
2019	$2,250	$10,832	$7,924
2018	$2,250	$10,790	$7,471
2017	$2,250	$10,336	$7,202
2016	$2,250	$9,927	$6,993
2015	$900	$8,277	$6,822

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Average Acceptance Rate

93%

73%

View Data

Acceptance Rate Trends (2015-2025)
Year	Union County Average	New Jersey (NJ) Average	National Average
2025	93%	73%	79%
2024	95%	65%	81%
2023	85%	65%	81%
2022	95%	68%	81%
2021	95%	68%	81%
2020	85%	68%	81%
2019	85%	67%	81%
2018	85%	69%	80%
2017	85%	69%	81%
2016	79%	69%	80%
2015	81%	72%	81%

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Average Endowment Size

$10 million

$67.49 million

Students by Ethnicity:

0.68

0.58

View Data

Diversity Score Trends
Year	Union County Average	New Jersey (NJ) Average	National Average
2025	0.68	0.58	0.61
2024	0.68	0.58	0.60
2023	0.67	0.59	0.60
2022	0.67	0.58	0.58
2021	0.68	0.58	0.57
2020	0.69	0.58	0.57
2019	0.64	0.58	0.56
2018	0.61	0.57	0.55
2017	0.61	0.57	0.54
2016	0.61	0.57	0.54
2015	0.61	0.58	0.53

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# American Indian Students

5 Students

342 Students

% American Indian Students

n/a

# Asian Students

360 Students

5,725 Students

% Asian Students

View Data

Asian Student Percentage Trends
Year	Union County Average	New Jersey (NJ) Average	National Average
2025	9%	8%	5%
2024	9%	8%	6%
2023	8%	8%	6%
2022	8%	8%	5%
2021	9%	7%	5%
2020	8%	8%	5%
2019	6%	7%	5%
2018	6%	8%	5%
2017	3%	6%	4%
2016	3%	6%	4%
2015	3%	5%	4%

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# Hispanic Students

597 Students

6,468 Students

% Hispanic Students

13%

View Data

Hispanic Student Percentage Trends
Year	Union County Average	New Jersey (NJ) Average	National Average
2025	13%	8%	9%
2024	13%	8%	9%
2023	13%	9%	8%
2022	11%	10%	8%
2021	11%	9%	8%
2020	11%	9%	8%
2019	11%	9%	8%
2018	10%	8%	8%
2017	12%	9%	7%
2016	12%	9%	8%
2015	9%	10%	8%

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# Black Students

695 Students

7,629 Students

% Black Students

16%

10%

View Data

Black Student Percentage Trends
Year	Union County Average	New Jersey (NJ) Average	National Average
2025	15%	10%	8%
2024	15%	10%	8%
2023	18%	11%	8%
2022	19%	11%	8%
2021	20%	12%	8%
2020	21%	12%	8%
2019	20%	12%	8%
2018	18%	12%	8%
2017	21%	13%	8%
2016	21%	13%	8%
2015	24%	13%	9%

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# White Students

2,347 Students

48,265 Students

% White Students

52%

63%

View Data

White Student Percentage Trends
Year	Union County Average	New Jersey (NJ) Average	National Average
2025	52%	63%	59%
2024	52%	63%	60%
2023	52%	62%	60%
2022	52%	62%	62%
2021	50%	63%	63%
2020	50%	63%	64%
2019	55%	63%	64%
2018	59%	63%	65%
2017	58%	64%	66%
2016	58%	63%	66%
2015	57%	63%	66%

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# Hawaiian Students

14 Students

138 Students

% Hawaiian Students

n/a

# Two or more races Students

n/a

% of Two or more races Students

n/a

# Others Students

494 Students

8,230 Students

% of Others Students

11%

View Data

Other Races Student Percentage Trends
Year	Union County Average	New Jersey (NJ) Average	National Average
2025	11%	11%	17%
2024	11%	11%	15%
2023	9%	10%	16%
2022	10%	9%	16%
2021	10%	9%	15%
2020	10%	8%	14%
2019	7%	9%	14%
2018	6%	9%	13%
2017	4%	8%	14%
2016	4%	9%	13%
2015	5%	9%	12%

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All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars

21 extracurriculars

Average Number of Sports

13 sports

11 sports

Frequently Asked Questions

What are the top-ranked private high schools in Union County, NJ?

The private high schools in Union County, NJ include Kent Place School, Oratory Preparatory School, and Oak Knoll School Of The Holy Child.

How many private high schools are located in Union County?

18 private high schools are located in Union County.

How much do private high schools cost in Union County?

The average tuition cost is $22,404, which is lower than the New Jersey private school average tuition cost of $23,776.

How diverse are private high schools in Union County?

Union County private high schools are approximately 45% minority students, which is higher than the New Jersey private school average of 40%.

What percentage of private high schools are religiously affiliated in Union County?

56% of private high schools in Union County are religiously affiliated (most commonly Catholic and Christian).

Which private high schools in Union County are often viewed compared to one another?

Popular comparisons of private high schools in Union County include: Roselle Catholic High School vs. Union Catholic Regional High School, Union Catholic Regional High School vs. Roselle Catholic High School

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