[+] Show Closed Private Schools in Nassau County, New York

Overview

Academics and Faculty:

# Teachers

1,618 Teachers

24,736 Teachers

Average Student-Teacher Ratio

9:1

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Student-Teacher Ratio Trends (2015-2025)
Year	Nassau County Average	New York (NY) Average	National Average
2025	9:1	9:1	10:1
2024	9:1	9:1	10:1
2023	11:1	10:1	10:1
2022	10:1	9:1	10:1
2021	10:1	9:1	10:1
2020	10:1	10:1	10:1
2019	10:1	10:1	10:1
2018	10:1	10:1	10:1
2017	12:1	10:1	10:1
2016	12:1	10:1	10:1
2015	12:1	11:1	10:1

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% Average Faculty w/Advanced Degree

82%

76%

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Percentage of Faculty With Advanced Degrees Trends (2015-2025)
Year	Nassau County Average	New York (NY) Average	National Average
2025	82%	76%	57%
2024	83%	75%	57%
2023	84%	75%	57%
2022	85%	74%	56%
2021	87%	74%	56%
2020	89%	74%	56%
2019	89%	73%	55%
2018	87%	72%	55%
2017	84%	71%	55%
2016	79%	70%	54%
2015	75%	68%	54%

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Average Class Size

15 students

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Class Size Trends (2015-2025)
Year	Nassau County Average	New York (NY) Average	National Average
2025	15	15	14
2024	14	14	14
2023	13	14	14
2022	14	14	14
2021	14	14	14
2020	14	14	14
2019	15	14	14
2018	14	14	14
2017	15	14	14
2016	14	14	14
2015	15	14	14

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Average Number of AP Courses

14 courses

12 courses

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Trends in Average Number of AP Courses Offered
Year	Nassau County Average	New York (NY) Average	National Average
2025	14	12	13
2024	13	11	12
2023	13	11	12
2022	13	11	12
2021	12	11	12
2020	12	11	12
2019	12	10	11
2018	12	10	11
2017	12	10	11
2016	11	10	11
2015	12	9	10

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Average SAT score

1219

(Out of 1600)

1251

View Data

SAT Score Trends (2017-2025)
Year	Nassau County Average	New York (NY) Average	National Average
2025	1219	1247	1233
2024	1219	1249	1231
2023	1223	1242	1229
2022	1237	1246	1230
2021	1249	1244	1230
2020	1249	1240	1227
2019	1223	1235	1226
2018	1228	1224	1226
2017	1228	1236	1233

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Average ACT score

(Out of 36)

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ACT Score Trends (2015-2025)
Year	Nassau County Average	New York (NY) Average	National Average
2025	27	28	26
2024	27	28	26
2023	27	28	26
2022	27	27	26
2021	27	27	26
2020	27	27	26
2019	26	27	25
2018	26	26	25
2017	26	26	25
2016	26	26	25
2015	26	25	25

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Tuition and Acceptance Rate:

Average Yearly Tuition Cost

$21,557

$26,519

View Data

Tuition Cost Trends (2015-2025)
Year	Nassau County Average	New York (NY) Average	National Average
2025	$21,748	$26,593	$17,997
2024	$26,672	$27,572	$17,011
2023	$26,197	$27,456	$16,191
2022	$24,752	$25,281	$15,821
2021	$23,797	$25,108	$15,331
2020	$23,229	$25,090	$15,046
2019	$22,749	$24,507	$14,791
2018	$23,774	$24,031	$14,527
2017	$21,510	$21,902	$14,161
2016	$15,249	$20,183	$13,713
2015	$14,336	$19,018	$13,065

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Average % on Financial Aid

23%

35%

View Data

Percent on Financial Aid Trends (2015-2025)
Year	Nassau County Average	New York (NY) Average	National Average
2025	23%	35%	38%
2024	25%	36%	37%
2023	22%	37%	36%
2022	28%	38%	36%
2021	28%	37%	36%
2020	28%	36%	35%
2019	28%	35%	34%
2018	28%	36%	33%
2017	24%	35%	32%
2016	22%	36%	31%
2015	22%	34%	30%

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Average Financial Aid Grant

$10,000

$14,670

View Data

Financial Aid Grant Trends (2015-2025)
Year	Nassau County Average	New York (NY) Average	National Average
2025	$10,000	$14,482	$9,714
2024	$10,000	$14,698	$9,498
2023	$19,000	$15,519	$8,890
2022	$7,020	$13,349	$8,717
2021	$5,680	$12,754	$8,472
2020	$5,680	$12,990	$8,370
2019	$5,680	$13,183	$7,924
2018	$5,680	$11,364	$7,471
2017	$5,810	$9,105	$7,202
2016	$7,733	$8,991	$6,993
2015	$7,733	$8,381	$6,822

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Average Acceptance Rate

73%

77%

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Acceptance Rate Trends (2015-2025)
Year	Nassau County Average	New York (NY) Average	National Average
2025	73%	73%	79%
2024	66%	73%	81%
2023	73%	74%	81%
2022	65%	72%	81%
2021	68%	72%	81%
2020	68%	72%	81%
2019	68%	71%	81%
2018	64%	69%	80%
2017	62%	72%	81%
2016	70%	75%	80%
2015	70%	75%	81%

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Average Endowment Size

$10 million

$28.49 million

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Endowment Trends (2024-2025)
Year	Nassau County Average	New York (NY) Average	National Average
2025	$30 M	$38 M	$43 M
2024	$58 M	$34 M	$52 M

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Students by Ethnicity:

0.48

0.49

View Data

Diversity Score Trends
Year	Nassau County Average	New York (NY) Average	National Average
2025	0.48	0.51	0.61
2024	0.47	0.50	0.60
2023	0.44	0.53	0.60
2022	0.43	0.53	0.58
2021	0.40	0.52	0.57
2020	0.41	0.50	0.57
2019	0.46	0.49	0.56
2018	0.46	0.49	0.55
2017	0.46	0.52	0.54
2016	0.46	0.52	0.54
2015	0.46	0.53	0.53

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# American Indian Students

29 Students

429 Students

% American Indian Students

n/a

# Asian Students

585 Students

11,895 Students

% Asian Students

View Data

Asian Student Percentage Trends
Year	Nassau County Average	New York (NY) Average	National Average
2025	5%	5%	5%
2024	5%	5%	6%
2023	4%	5%	6%
2022	5%	6%	5%
2021	4%	5%	5%
2020	4%	5%	5%
2019	3%	6%	5%
2018	3%	6%	5%
2017	4%	4%	4%
2016	4%	4%	4%
2015	5%	4%	4%

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# Hispanic Students

1,451 Students

15,693 Students

% Hispanic Students

10%

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Hispanic Student Percentage Trends
Year	Nassau County Average	New York (NY) Average	National Average
2025	10%	7%	9%
2024	10%	7%	9%
2023	8%	7%	8%
2022	7%	7%	8%
2021	6%	7%	8%
2020	6%	7%	8%
2019	11%	7%	8%
2018	11%	7%	8%
2017	6%	8%	7%
2016	6%	8%	8%
2015	6%	9%	8%

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# Black Students

1,346 Students

16,803 Students

% Black Students

View Data

Black Student Percentage Trends
Year	Nassau County Average	New York (NY) Average	National Average
2025	9%	7%	8%
2024	8%	7%	8%
2023	9%	8%	8%
2022	9%	8%	8%
2021	8%	8%	8%
2020	9%	8%	8%
2019	8%	7%	8%
2018	8%	7%	8%
2017	9%	9%	8%
2016	9%	9%	8%
2015	9%	10%	9%

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# White Students

10,392 Students

161,909 Students

% White Students

71%

70%

View Data

White Student Percentage Trends
Year	Nassau County Average	New York (NY) Average	National Average
2025	71%	69%	59%
2024	72%	69%	60%
2023	74%	67%	60%
2022	74%	67%	62%
2021	77%	68%	63%
2020	76%	70%	64%
2019	72%	70%	64%
2018	72%	70%	65%
2017	73%	68%	66%
2016	73%	68%	66%
2015	72%	67%	66%

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# Hawaiian Students

49 Students

275 Students

% Hawaiian Students

n/a

# Two or more races Students

n/a

% of Two or more races Students

n/a

# Others Students

777 Students

24,058 Students

% of Others Students

11%

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

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All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars

18 extracurriculars

Average Number of Sports

10 sports

9 sports

Frequently Asked Questions

What are the top ranked private high schools in Nassau County, NY?

The private high schools in Nassau County, NY include Long Island Lutheran Middle & High School, Friends Academy, and Vincent Smith School.

How many private high schools are located in Nassau County?

36 private high schools are located in Nassau County.

How much do private high schools cost in Nassau County?

The average tuition cost is $21,557, which is lower than the New York private school average tuition cost of $26,519.

How diverse are private high schools in Nassau County?

Nassau County private high schools are approximately 34% minority students, which is lower than the New York private school average of 36%.

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

68% of private high schools in Nassau County are religiously affiliated (most commonly Jewish and Catholic).

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

Popular comparisons of private high schools in Nassau County include: Mesivta Ateres Yaakov vs. Rambam Mesivta, Rambam Mesivta vs. Mesivta Ateres Yaakov, Portledge School vs. Friends Academy

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Year	Nassau County Average	New York (NY) Average	National Average
2025	399	355	253
2024	394	351	245
2023	426	346	247
2022	423	351	257
2021	417	342	249
2020	415	351	235
2019	444	362	242
2018	441	359	238
2017	418	343	246
2016	417	342	241
2015	394	326	220

Quick Facts (2026-27)

Quick Facts (2026-27)

Top Ranked Nassau County Private High Schools (2026-27)

Nassau County Private High Schools (Closed)

Overview

Trends in Total Number of Private High Schools

Trends in the Average Number of Students Per Private High School

Percentage of Students of Color Trends (2015-2025)

Academics and Faculty:

Student-Teacher Ratio Trends (2015-2025)

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

Class Size Trends (2015-2025)

Trends in Average Number of AP Courses Offered

SAT Score Trends (2017-2025)

ACT Score Trends (2015-2025)

Tuition and Acceptance Rate:

Tuition Cost Trends (2015-2025)

Percent on Financial Aid Trends (2015-2025)

Financial Aid Grant Trends (2015-2025)

Acceptance Rate Trends (2015-2025)

Endowment Trends (2024-2025)

Students by Ethnicity:

Diversity Score Trends

Asian Student Percentage Trends

Hispanic Student Percentage Trends

Black Student Percentage Trends

White Student Percentage Trends

Other Races Student Percentage Trends

Extracurriculars and Sports:

Frequently Asked Questions

Recent Articles

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Most Popular Articles

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Best Nassau County Private High Schools (2026-27)

Top Ranked Nassau County Private High Schools (2026-27)

Nassau County Private High Schools (Closed)

Overview

Trends in Total Number of Private High Schools

Trends in the Average Number of Students Per Private High School

Percentage of Students of Color Trends (2015-2025)

Academics and Faculty:

Student-Teacher Ratio Trends (2015-2025)

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

Class Size Trends (2015-2025)

Trends in Average Number of AP Courses Offered

SAT Score Trends (2017-2025)

ACT Score Trends (2015-2025)

Tuition and Acceptance Rate:

Tuition Cost Trends (2015-2025)

Percent on Financial Aid Trends (2015-2025)

Financial Aid Grant Trends (2015-2025)

Acceptance Rate Trends (2015-2025)

Endowment Trends (2024-2025)

Students by Ethnicity:

Diversity Score Trends

Asian Student Percentage Trends

Hispanic Student Percentage Trends

Black Student Percentage Trends

White Student Percentage Trends

Other Races Student Percentage Trends

Extracurriculars and Sports:

Frequently Asked Questions

More Articles