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

Overview

Academics and Faculty:

# Teachers

3,174 Teachers

41,520 Teachers

Average Student-Teacher Ratio

11:1

10:1

View Data

Student-Teacher Ratio Trends (2015-2025)
Year	Nassau County Average	New York (NY) Average	National Average
2025	11:1	10:1	11:1
2024	11:1	10:1	11:1
2023	12:1	11:1	11:1
2022	12:1	11:1	11:1
2021	12:1	11:1	11:1
2020	12:1	11:1	12:1
2019	12:1	11:1	12:1
2018	12:1	11:1	12:1
2017	13:1	11:1	12:1
2016	13:1	11:1	12:1
2015	13:1	12:1	12:1

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

% Average Faculty w/Advanced Degree

75%

76%

View Data

Percentage of Faculty With Advanced Degrees Trends (2015-2025)
Year	Nassau County Average	New York (NY) Average	National Average
2025	75%	76%	55%
2024	75%	75%	54%
2023	76%	75%	54%
2022	75%	76%	54%
2021	77%	74%	54%
2020	76%	74%	54%
2019	80%	73%	53%
2018	79%	73%	53%
2017	77%	72%	53%
2016	71%	73%	52%
2015	71%	72%	52%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Average Class Size

15 students

View Data

Class Size Trends (2015-2025)
Year	Nassau County Average	New York (NY) Average	National Average
2025	15	15	15
2024	14	15	15
2023	14	15	15
2022	14	15	15
2021	14	15	15
2020	14	15	15
2019	14	16	15
2018	14	16	15
2017	15	16	15
2016	14	16	15
2015	14	16	15

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Average Number of AP Courses

12 courses

11 courses

View Data

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

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Average SAT score

1219

(Out of 1600)

1254

View Data

SAT Score Trends (2017-2025)
Year	Nassau County Average	New York (NY) Average	National Average
2025	1219	1250	1233
2024	1219	1246	1230
2023	1223	1242	1228
2022	1237	1246	1229
2021	1249	1247	1229
2020	1249	1240	1226
2019	1223	1235	1226
2018	1228	1224	1226
2017	1228	1236	1233

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Average ACT score

(Out of 36)

View Data

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	25
2019	26	27	25
2018	26	26	25
2017	26	26	25
2016	26	26	25
2015	26	25	25

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Tuition and Acceptance Rate:

Average Yearly Tuition Cost

$21,047

$22,460

View Data

Tuition Cost Trends (2015-2025)
Year	Nassau County Average	New York (NY) Average	National Average
2025	$21,254	$22,300	$15,012
2024	$19,785	$21,636	$13,254
2023	$19,445	$21,117	$12,626
2022	$19,244	$19,707	$12,187
2021	$18,932	$19,162	$11,800
2020	$18,229	$18,832	$11,512
2019	$17,909	$18,073	$11,293
2018	$19,148	$17,784	$11,017
2017	$17,552	$16,583	$10,708
2016	$12,938	$14,881	$10,356
2015	$12,967	$14,120	$9,939

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Average Summer Program Cost

$206

$2,359

View Data

Summer Program Cost Trends (2021-2025)
Year	Nassau County Average	New York (NY) Average	National Average
2025	$206	$2,213	$1,152
2024	$206	$2,240	$1,128
2023	$206	$2,493	$1,156
2022	$206	$2,022	$1,102
2021	$12	$2,090	$1,125

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Average % on Financial Aid

28%

33%

View Data

Percent on Financial Aid Trends (2015-2025)
Year	Nassau County Average	New York (NY) Average	National Average
2025	28%	34%	34%
2024	28%	33%	34%
2023	28%	34%	34%
2022	31%	34%	33%
2021	31%	33%	33%
2020	34%	33%	32%
2019	31%	32%	31%
2018	34%	32%	30%
2017	30%	31%	30%
2016	30%	31%	29%
2015	31%	30%	28%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Average Financial Aid Grant

$4,425

$9,892

View Data

Financial Aid Grant Trends (2015-2025)
Year	Nassau County Average	New York (NY) Average	National Average
2025	$4,425	$9,504	$7,073
2024	$4,425	$9,775	$6,930
2023	$5,110	$10,192	$6,469
2022	$3,432	$9,153	$6,289
2021	$3,370	$8,840	$6,055
2020	$3,923	$8,813	$5,921
2019	$3,370	$8,764	$5,795
2018	$3,923	$7,563	$5,456
2017	$4,249	$6,602	$5,319
2016	$5,440	$6,842	$5,105
2015	$6,050	$6,353	$5,030

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Average Acceptance Rate

75%

76%

View Data

Acceptance Rate Trends (2015-2025)
Year	Nassau County Average	New York (NY) Average	National Average
2025	71%	74%	81%
2024	76%	79%	85%
2023	80%	79%	85%
2022	78%	78%	85%
2021	77%	78%	85%
2020	77%	78%	85%
2019	77%	77%	85%
2018	75%	77%	85%
2017	76%	79%	85%
2016	77%	80%	85%
2015	74%	81%	85%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Average Endowment Size

$40 million

$40.7 million

View Data

Endowment Trends (2018-2025)
Year	Nassau County Average	New York (NY) Average	National Average
2025	$79 M	$41 M	$39 M
2024	$30 M	$29 M	$39 M
2023	$3 M	$28 M	$39 M
2022	$3 M	$24 M	$40 M
2021	$3 M	$24 M	$40 M
2020	$3 M	$22 M	$40 M
2019	$3 M	$21 M	$40 M
2018	$3 M	$16 M	$43 M

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Students by Ethnicity:

0.62

0.59

View Data

Diversity Score Trends
Year	Nassau County Average	New York (NY) Average	National Average
2025	0.62	0.60	0.65
2024	0.62	0.60	0.65
2023	0.60	0.62	0.65
2022	0.59	0.62	0.64
2021	0.58	0.62	0.64
2020	0.58	0.62	0.64
2019	0.59	0.61	0.63
2018	0.59	0.61	0.63
2017	0.57	0.61	0.61
2016	0.57	0.62	0.61
2015	0.56	0.62	0.61

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

# American Indian Students

33 Students

949 Students

% American Indian Students

n/a

# Asian Students

1,194 Students

18,397 Students

% Asian Students

View Data

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

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

# Hispanic Students

2,618 Students

33,759 Students

% Hispanic Students

View Data

Hispanic Student Percentage Trends
Year	Nassau County Average	New York (NY) Average	National Average
2025	8%	8%	9%
2024	8%	8%	9%
2023	6%	9%	9%
2022	6%	9%	8%
2021	6%	9%	9%
2020	6%	9%	9%
2019	8%	10%	8%
2018	8%	10%	8%
2017	5%	9%	8%
2016	5%	9%	8%
2015	5%	9%	8%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

# Black Students

2,869 Students

33,696 Students

% Black Students

View Data

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

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

# White Students

18,924 Students

252,994 Students

% White Students

56%

60%

View Data

White Student Percentage Trends
Year	Nassau County Average	New York (NY) Average	National Average
2025	56%	59%	52%
2024	56%	59%	52%
2023	58%	57%	52%
2022	59%	57%	54%
2021	61%	57%	54%
2020	60%	58%	54%
2019	60%	58%	56%
2018	60%	58%	56%
2017	62%	58%	58%
2016	62%	58%	58%
2015	62%	58%	58%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

# Hawaiian Students

89 Students

538 Students

% Hawaiian Students

n/a

# Two or more races Students

n/a

% of Two or more races Students

n/a

# Others Students

8,001 Students

81,407 Students

% of Others Students

24%

19%

View Data

Other Races Student Percentage Trends
Year	Nassau County Average	New York (NY) Average	National Average
2025	23%	20%	26%
2024	23%	20%	26%
2023	24%	20%	25%
2022	23%	18%	25%
2021	22%	19%	25%
2020	22%	19%	24%
2019	21%	18%	24%
2018	21%	18%	23%
2017	22%	18%	22%
2016	22%	18%	22%
2015	21%	18%	21%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars

12 extracurriculars

13 extracurriculars

Average Number of Sports

8 sports

7 sports

Frequently Asked Questions

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

The private schools in Nassau County, NY include Friends Academy, The Greenvale School, and Buckley Country Day School.

How many private schools are located in Nassau County?

126 private schools are located in Nassau County.

How much do private schools cost in Nassau County?

The average tuition cost is $21,047, which is lower than the New York private school average tuition cost of $22,460.

How diverse are private schools in Nassau County?

Nassau County private schools are approximately 38% minority students, which is lower than the New York private school average of 39%.

What percentage of students in Nassau County go to private school?

15% of all K-12 students in Nassau County are educated in private schools (compared to the NY state average of 15%).

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

57% of private schools in Nassau County are religiously affiliated (most commonly Catholic and Jewish).

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

Popular comparisons of private schools in Nassau County include: Pierce Country Day School vs. Buckley Country Day School, Silverstein Hebrew Academy vs. North Shore Hebrew Academy, Mesivta Ateres Yaakov vs. Rambam Mesivta

Recent Articles

September 01, 2026

How Much Homework Is Too Much?

Learn how to compare private school homework expectations, recognize excessive workloads, evaluate assignment quality, and ask better questions about academic balance before choosing a school for your child.

September 01, 2026

Learning Support Without a Formal Program

Learn what private schools mean by informal learning support, how services differ from formal programs, and which questions families should ask before choosing the right school today.

September 01, 2026

Beyond AP vs. IB: How to Judge Academic Rigor

Learn how to judge academic rigor at private schools without AP or IB by examining curriculum depth, assessments, faculty expectations, advanced coursework, student work, and college preparation outcomes.

Quick Links

SCHOOL SEARCH TOOLS:

SCHOOL BY TYPE (NY):

OPEN-HOUSES & JOBS:

PUBLIC & BOARDING SCHOOLS:

PRIVATE SCHOOL DATA:

Most Popular Articles

New York Private Schools By Tuition Cost

Costs of Private School in 2026

How Private Schools Handle Mid-Year Enrollment Changes and Tuition Re...

Expert School Views
Leadership in Private Education
Strategic School Choices
Funding the Future
Premier School Models

Year	Nassau County Average	New York (NY) Average	National Average
2025	261	246	179
2024	255	238	172
2023	279	238	174
2022	280	250	185
2021	278	245	180
2020	278	242	171
2019	293	247	175
2018	294	245	172
2017	284	242	180
2016	282	241	178
2015	267	230	167

Quick Facts (2026-27)

Quick Facts (2026-27)

Top Ranked Nassau County Private Schools (2026-27)

Nassau County Private Schools (Closed)

Overview

Trends in Total Number of Private Schools

Trends in the Average Number of Students Per Private 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)

Summer Program Cost Trends (2021-2025)

Percent on Financial Aid Trends (2015-2025)

Financial Aid Grant Trends (2015-2025)

Acceptance Rate Trends (2015-2025)

Endowment Trends (2018-2025)

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

Filter Schools

Quick Links

Most Popular Articles

More Articles

Best Nassau County Private Schools (2026-27)

Top Ranked Nassau County Private Schools (2026-27)

Nassau County Private Schools (Closed)

Overview

Trends in Total Number of Private Schools

Trends in the Average Number of Students Per Private 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)

Summer Program Cost Trends (2021-2025)

Percent on Financial Aid Trends (2015-2025)

Financial Aid Grant Trends (2015-2025)

Acceptance Rate Trends (2015-2025)

Endowment Trends (2018-2025)

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