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

Overview

Trends in Total Number of Private Schools

Year	Union County Total Schools
2025	92
2024	93
2023	91
2022	84
2021	91
2020	97
2019	95
2018	96
2017	94
2016	92
2015	92

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Private schools down 5 in Union County, falling from 97 in 2020 to 92 in 2025 after peaking at 97.

# Students

13,960 Students

216,190 Students

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Showing 2016–2025. Full 11-year historical data available below ↓

Trends in the Average Number of Students Per Private School

Year	Union County Average	New Jersey (NJ) Average	National Average
2025	153	168	179
2024	151	165	172
2023	149	164	174
2022	150	167	185
2021	147	165	180
2020	146	160	171
2019	149	164	175
2018	153	164	172
2017	157	167	180
2016	159	166	178
2015	141	154	167

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% Average Students of Color

45%

40%

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Showing 2016–2025. Full 11-year historical data available below ↓

Percentage of Students of Color Trends (2015-2025)

Year	Union County Average	New Jersey (NJ) Average	National Average
2025	45%	40%	34%
2024	45%	39%	34%
2023	47%	40%	33%
2022	44%	38%	33%
2021	47%	39%	32%
2020	48%	39%	32%
2019	46%	38%	31%
2018	45%	37%	31%
2017	43%	38%	32%
2016	43%	38%	32%
2015	41%	37%	32%

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Academics and Faculty:

# Teachers

1,130 Teachers

20,275 Teachers

Average Student-Teacher Ratio

12:1

11:1

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Showing 2016–2025. Full 11-year historical data available below ↓

Student-Teacher Ratio Trends (2015-2025)

Year	Union County Average	New Jersey (NJ) Average	National Average
2025	12:1	11:1	11:1
2024	12:1	11:1	11:1
2023	12:1	11:1	11:1
2022	12:1	11:1	11:1
2021	13:1	11:1	11:1
2020	13:1	11:1	12:1
2019	13:1	11:1	12:1
2018	12:1	11:1	12:1
2017	12:1	11:1	12:1
2016	13:1	11:1	12:1
2015	14:1	12:1	12:1

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Student-teacher ratio down 1 in Union County private schools, from 13:1 in 2016 to 12:1 in 2025.

% Average Faculty w/Advanced Degree

56%

54%

View Data

Showing 2016–2025. Full 11-year historical data available below ↓

Percentage of Faculty With Advanced Degrees Trends (2015-2025)

Year	Union County Average	New Jersey (NJ) Average	National Average
2025	56%	54%	55%
2024	56%	53%	54%
2023	53%	54%	54%
2022	53%	54%	54%
2021	53%	53%	54%
2020	49%	52%	54%
2019	51%	53%	53%
2018	51%	53%	53%
2017	51%	52%	53%
2016	49%	50%	52%
2015	65%	51%	52%

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Faculty advanced degrees up 7 points in Union County private schools, rising from 49% in 2016 to 56% in 2025.

Average Class Size

13 students

14 students

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Showing 2016–2025. Full 11-year historical data available below ↓

Class Size Trends (2015-2025)

Year	Union County Average	New Jersey (NJ) Average	National Average
2025	15	14	15
2024	15	14	15
2023	15	14	15
2022	13	14	15
2021	14	14	15
2020	16	14	15
2019	16	14	15
2018	16	14	15
2017	16	14	15
2016	17	14	15
2015	17	14	15

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Average Number of AP Courses

13 courses

15 courses

View Data

Trends in Average Number of AP Courses Offered

Year	Union County Average	New Jersey (NJ) Average	National Average
2025	13	14	12
2024	13	14	12
2023	11	14	11
2022	12	13	11
2021	12	13	11
2020	11	13	11
2019	11	12	11
2018	12	12	11
2017	12	11	10
2016	10	10	10

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AP courses up 3 in Union County private schools, rising from 10 in 2016 to 13 in 2025.

Average SAT score

1025

(Out of 1600)

1259

Average ACT score

(Out of 36)

Tuition and Acceptance Rate:

Average Yearly Tuition Cost

$15,432

$16,991

View Data

Showing 2016–2025. Full 11-year historical data available below ↓

Tuition Cost Trends (2015-2025)

Year	Union County Average	New Jersey (NJ) Average	National Average
2025	$14,099	$16,929	$13,694
2024	$13,240	$16,338	$13,340
2023	$13,128	$15,851	$12,825
2022	$13,128	$15,377	$12,321
2021	$12,209	$15,152	$12,072
2020	$12,773	$15,002	$11,784
2019	$12,992	$14,800	$11,547
2018	$12,992	$14,458	$11,280
2017	$12,992	$14,255	$10,994
2016	$12,563	$13,902	$10,614
2015	$12,026	$13,353	$10,195

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Tuition up 12% in Union County private schools, rising from $12,563 in 2016 to $14,099 in 2025.

Average % on Financial Aid

38%

27%

Average Financial Aid Grant

$9,500

$16,112

Average Acceptance Rate

94%

82%

View Data

Showing 2016–2025. Full 11-year historical data available below ↓

Acceptance Rate Trends (2015-2025)

Year	Union County Average	New Jersey (NJ) Average	National Average
2025	96%	78%	85%
2024	96%	78%	85%
2023	93%	80%	85%
2022	96%	79%	85%
2021	95%	79%	85%
2020	92%	79%	85%
2019	92%	79%	85%
2018	92%	79%	85%
2017	90%	79%	85%
2016	90%	79%	85%
2015	89%	79%	85%

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Acceptance rate up 6 points in Union County, from 90% in 2016 to 96% in 2025.

Average Endowment Size

$10 million

$59.71 million

Students by Ethnicity:

0.71

0.63

View Data

Showing 2016–2025. Full 11-year historical data available below ↓

Diversity Score Trends

Year	Union County Average	New Jersey (NJ) Average	National Average
2025	0.71	0.63	0.65
2024	0.71	0.64	0.65
2023	0.73	0.65	0.65
2022	0.73	0.65	0.64
2021	0.73	0.65	0.64
2020	0.74	0.65	0.64
2019	0.74	0.65	0.63
2018	0.74	0.65	0.63
2017	0.73	0.64	0.61
2016	0.73	0.65	0.61
2015	0.72	0.65	0.61

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Diversity score edged down in Union County private schools, from 0.73 in 2016 to 0.71 in 2025, while New Jersey fell from 0.65 to 0.63.

# American Indian Students

11 Students

942 Students

% American Indian Students

<1%

# Asian Students

625 Students

11,318 Students

% Asian Students

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Showing 2016–2025. Full 11-year historical data available below ↓

Asian Student Percentage Trends

Year	Union County Average	New Jersey (NJ) Average	National Average
2025	4%	6%	5%
2024	4%	6%	5%
2023	5%	6%	5%
2022	5%	6%	4%
2021	5%	5%	4%
2020	4%	5%	4%
2019	4%	5%	4%
2018	4%	5%	4%
2017	3%	5%	4%
2016	3%	5%	4%
2015	4%	4%	4%

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Asian share up 1 point in Union County private schools, from 3% in 2016 to 4% in 2025, while New Jersey rose to 6%.

# Hispanic Students

1,541 Students

15,574 Students

% Hispanic Students

11%

View Data

Showing 2016–2025. Full 11-year historical data available below ↓

Hispanic Student Percentage Trends

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

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Hispanic share down 1 point in Union County private schools, from 12% in 2016 to 11% in 2025.

# Black Students

1,504 Students

14,112 Students

% Black Students

11%

View Data

Showing 2016–2025. Full 11-year historical data available below ↓

Black Student Percentage Trends

Year	Union County Average	New Jersey (NJ) Average	National Average
2025	11%	6%	7%
2024	11%	7%	7%
2023	13%	7%	8%
2022	14%	8%	7%
2021	15%	8%	7%
2020	15%	8%	8%
2019	16%	9%	7%
2018	16%	9%	7%
2017	16%	9%	7%
2016	16%	9%	7%
2015	15%	9%	8%

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Black students down 5 points in Union County private schools, from 16% in 2016 to 11% in 2025.

# White Students

4,535 Students

116,208 Students

% White Students

33%

54%

View Data

Showing 2016–2025. Full 11-year historical data available below ↓

White Student Percentage Trends

Year	Union County Average	New Jersey (NJ) Average	National Average
2025	33%	53%	52%
2024	33%	53%	52%
2023	33%	51%	52%
2022	34%	52%	54%
2021	33%	52%	54%
2020	34%	52%	54%
2019	36%	52%	56%
2018	38%	52%	56%
2017	39%	53%	58%
2016	39%	53%	58%
2015	35%	51%	58%

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White students down 6 points in Union County private schools, from 39% in 2016 to 33% in 2025, while New Jersey stayed near 53%.

# Hawaiian Students

22 Students

292 Students

% Hawaiian Students

<1%

# Others Students

5,574 Students

58,533 Students

% of Others Students

40%

27%

View Data

Showing 2016–2025. Full 11-year historical data available below ↓

Other Races Student Percentage Trends

Year	Union County Average	New Jersey (NJ) Average	National Average
2025	41%	27%	26%
2024	41%	27%	26%
2023	37%	29%	25%
2022	35%	27%	25%
2021	35%	27%	25%
2020	34%	27%	24%
2019	30%	26%	24%
2018	29%	26%	23%
2017	29%	25%	22%
2016	29%	25%	22%
2015	36%	28%	21%

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Other-race students up 12 points in Union County private schools, rising from 29% in 2016 to 41% in 2025.

All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars

14 extracurriculars

12 extracurriculars

Average Number of Sports

8 sports

7 sports

Frequently Asked Questions

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

The private schools in Union County, NJ include Kent Place School, Holy Trinity School - Westfield, 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 $15,432, which is lower than the New Jersey private school average tuition cost of $16,991.

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 40%.

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?

42% of private schools in Union County are religiously affiliated (most commonly Catholic and Jewish).

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

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