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

Overview

Academics and Faculty:

# Teachers

1,031 Teachers

34,314 Teachers

Average Student-Teacher Ratio

9:1

10:1

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Student-Teacher Ratio Trends (2015-2025)
Year	Suffolk County Average	New York (NY) Average	National Average
2025	9:1	10:1	11:1
2024	10:1	10:1	11:1
2023	10:1	10:1	11:1
2022	10:1	10:1	11:1
2021	10:1	11:1	11:1
2020	10:1	11:1	11:1
2019	11:1	11:1	11:1
2018	11:1	11:1	11:1
2017	12:1	11:1	11:1
2016	12:1	11:1	12:1
2015	13:1	12:1	12:1

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% Average Faculty w/Advanced Degree

89%

76%

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Percentage of Faculty With Advanced Degrees Trends (2015-2025)
Year	Suffolk County Average	New York (NY) Average	National Average
2025	88%	76%	54%
2024	88%	76%	54%
2023	87%	75%	53%
2022	85%	76%	53%
2021	85%	75%	53%
2020	85%	74%	53%
2019	82%	73%	52%
2018	83%	73%	52%
2017	85%	73%	51%
2016	83%	73%	51%
2015	80%	72%	50%

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Average Class Size

14 students

15 students

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

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Average Number of AP Courses

13 courses

11 courses

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Trends in Average Number of AP Courses Offered
Year	Suffolk County Average	New York (NY) Average	National Average
2025	13	11	12
2024	12	9	11
2023	12	9	10
2022	11	9	10
2021	10	9	10
2020	9	9	10
2019	10	9	10
2018	10	8	10
2017	9	9	10
2016	8	8	9
2015	8	8	9

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Average SAT score

1266

(Out of 1600)

1272

View Data

SAT Score Trends (2015-2025)
Year	Suffolk County Average	New York (NY) Average	National Average
2025	1264	1268	1236
2024	1264	1263	1233
2023	1233	1258	1231
2022	1236	1262	1232
2021	1236	1261	1232
2020	1287	1254	1229
2019	1189	1248	1230
2018	1187	1231	1227
2017	1345	1249	1232
2016	1552	1343	1292
2015	1528	1297	1244

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Average ACT score

(Out of 36)

View Data

ACT Score Trends (2015-2025)
Year	Suffolk County Average	New York (NY) Average	National Average
2025	29	29	26
2024	29	28	26
2023	29	28	26
2022	27	28	26
2021	27	28	26
2020	24	27	26
2019	25	27	26
2018	24	26	25
2017	25	26	25
2016	23	25	25
2015	24	25	25

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Tuition and Acceptance Rate:

Average Yearly Tuition Cost

$21,365

$22,528

View Data

Tuition Cost Trends (2015-2025)
Year	Suffolk County Average	New York (NY) Average	National Average
2025	$20,101	$22,253	$14,043
2024	$16,658	$21,760	$12,357
2023	$20,791	$21,345	$11,693
2022	$16,475	$19,836	$11,199
2021	$14,971	$19,317	$10,824
2020	$14,949	$18,996	$10,496
2019	$13,880	$18,218	$10,300
2018	$15,830	$18,214	$10,056
2017	$15,227	$16,955	$9,712
2016	$14,033	$14,824	$9,307
2015	$14,385	$14,219	$8,903

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Average Summer Program Cost

$1,314

$2,682

View Data

Summer Program Cost Trends (2019-2025)
Year	Suffolk County Average	New York (NY) Average	National Average
2025	$1,707	$2,428	$1,115
2024	$1,111	$2,525	$1,094
2023	$1,111	$2,589	$1,136
2022	$1,750	$2,139	$1,075
2021	$1,750	$2,241	$1,028
2020	$2,000	$2,356	$1,130
2019	$2,000	$1,834	$1,199

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Average % on Financial Aid

22%

32%

View Data

Percent on Financial Aid Trends (2015-2025)
Year	Suffolk County Average	New York (NY) Average	National Average
2025	22%	32%	34%
2024	21%	32%	33%
2023	21%	32%	33%
2022	22%	33%	32%
2021	23%	32%	32%
2020	22%	32%	31%
2019	21%	31%	30%
2018	22%	31%	29%
2017	22%	30%	29%
2016	23%	29%	28%
2015	26%	28%	27%

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Average Financial Aid Grant

$7,524

$9,778

View Data

Financial Aid Grant Trends (2015-2025)
Year	Suffolk County Average	New York (NY) Average	National Average
2025	$4,533	$9,366	$6,227
2024	$4,551	$9,638	$6,113
2023	$4,829	$10,123	$5,785
2022	$4,557	$8,871	$5,514
2021	$1,801	$8,571	$5,269
2020	$4,216	$8,497	$5,141
2019	$5,006	$8,311	$5,007
2018	$5,838	$7,273	$4,752
2017	$5,433	$6,448	$4,582
2016	$5,433	$6,593	$4,396
2015	$6,806	$6,338	$4,230

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Average Acceptance Rate

76%

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Acceptance Rate Trends (2015-2025)
Year	Suffolk County Average	New York (NY) Average	National Average
2025	76%	75%	81%
2024	83%	80%	85%
2023	82%	80%	85%
2022	81%	79%	85%
2021	82%	79%	86%
2020	80%	79%	86%
2019	81%	78%	85%
2018	79%	77%	85%
2017	81%	80%	86%
2016	86%	81%	85%
2015	88%	82%	86%

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Average Endowment Size

$20.42 million

$40.08 million

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Endowment Trends (2020-2025)
Year	Suffolk County Average	New York (NY) Average	National Average
2025	$20 M	$41 M	$33 M
2024	$10 M	$21 M	$24 M
2023	$20 M	$26 M	$24 M
2022	$19 M	$20 M	$24 M
2021	$16 M	$21 M	$23 M
2020	$16 M	$20 M	$21 M

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Students by Ethnicity:

0.68

0.57

View Data

Diversity Score Trends
Year	Suffolk County Average	New York (NY) Average	National Average
2025	0.69	0.58	0.64
2024	0.69	0.58	0.64
2023	0.70	0.61	0.63
2022	0.68	0.61	0.62
2021	0.68	0.61	0.62
2020	0.67	0.60	0.62
2019	0.65	0.59	0.61
2018	0.65	0.59	0.60
2017	0.62	0.60	0.59
2016	0.61	0.60	0.59
2015	0.62	0.60	0.58

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# American Indian Students

11 Students

810 Students

% American Indian Students

n/a

# Asian Students

423 Students

14,469 Students

% Asian Students

View Data

Asian Student Percentage Trends
Year	Suffolk County Average	New York (NY) Average	National Average
2025	5%	4%	5%
2024	5%	4%	5%
2023	4%	4%	5%
2022	7%	4%	5%
2021	6%	4%	5%
2020	6%	4%	5%
2019	4%	5%	4%
2018	4%	5%	4%
2017	4%	4%	4%
2016	4%	4%	4%
2015	3%	4%	4%

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# Hispanic Students

1,268 Students

23,955 Students

% Hispanic Students

13%

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Hispanic Student Percentage Trends
Year	Suffolk County Average	New York (NY) Average	National Average
2025	13%	7%	9%
2024	13%	7%	9%
2023	14%	8%	9%
2022	11%	8%	8%
2021	11%	8%	9%
2020	11%	8%	9%
2019	9%	8%	8%
2018	9%	8%	8%
2017	7%	8%	8%
2016	7%	8%	8%
2015	7%	8%	8%

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# Black Students

921 Students

26,065 Students

% Black Students

10%

View Data

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

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# White Students

4,609 Students

213,434 Students

% White Students

49%

63%

View Data

White Student Percentage Trends
Year	Suffolk County Average	New York (NY) Average	National Average
2025	49%	62%	55%
2024	47%	62%	55%
2023	46%	59%	55%
2022	51%	59%	57%
2021	51%	59%	57%
2020	51%	60%	58%
2019	53%	60%	59%
2018	52%	60%	59%
2017	56%	60%	61%
2016	57%	60%	61%
2015	57%	60%	61%

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# Hawaiian Students

20 Students

420 Students

% Hawaiian Students

n/a

# Two or more races Students

n/a

% of Two or more races Students

n/a

# Others Students

2,152 Students

62,680 Students

% of Others Students

23%

18%

View Data

Other Races Student Percentage Trends
Year	Suffolk County Average	New York (NY) Average	National Average
2025	23%	18%	22%
2024	25%	19%	22%
2023	25%	20%	22%
2022	21%	18%	22%
2021	22%	19%	20%
2020	22%	18%	19%
2019	25%	18%	20%
2018	26%	18%	20%
2017	25%	17%	19%
2016	24%	17%	18%
2015	24%	17%	18%

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All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars

12 extracurriculars

Average Number of Sports

6 sports

7 sports

Frequently Asked Questions

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

The private elementary schools in Suffolk County, NY include The Stony Brook School, St. Mary School, and The Knox School.

How many private elementary schools are located in Suffolk County?

55 private elementary schools are located in Suffolk County.

How much do private elementary schools cost in Suffolk County?

The average tuition cost is $21,365, which is lower than the New York private school average tuition cost of $22,528.

How diverse are private elementary schools in Suffolk County?

Suffolk County private elementary schools are approximately 37% minority students, which is same as the New York private school average of 37%.

What percentage of private elementary schools are religiously affiliated in Suffolk County?

53% of private elementary schools in Suffolk County are religiously affiliated (most commonly Catholic and Christian).

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

Popular comparisons of private elementary schools in Suffolk County include: Gersh Academy vs. Ascent School For Individuals With Autism, Ascent School For Individuals With Autism vs. Gersh Academy, Copiague Christian Academy vs. St. Martin Of Tours School

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Quick Facts (2026-27)

Quick Facts (2026-27)

Top Ranked Suffolk County Private Elementary Schools (2026-27)

Suffolk County Private Elementary Schools (Closed)

Overview

Trends in Total Number of Private Elementary Schools

Trends in the Average Number of Students Per Private Elementary 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 (2015-2025)

ACT Score Trends (2015-2025)

Tuition and Acceptance Rate:

Tuition Cost Trends (2015-2025)

Summer Program Cost Trends (2019-2025)

Percent on Financial Aid Trends (2015-2025)

Financial Aid Grant Trends (2015-2025)

Acceptance Rate Trends (2015-2025)

Endowment Trends (2020-2025)

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

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Trends in the Average Number of Students Per Private Elementary School
Year	Suffolk County Average	New York (NY) Average	National Average
2025	177	273	199
2024	176	261	192
2023	178	258	193
2022	200	270	205
2021	199	267	201
2020	195	265	188
2019	206	273	193
2018	204	270	190
2017	223	262	199
2016	223	261	196
2015	221	252	183

Best Suffolk County Private Elementary Schools (2026-27)

Top Ranked Suffolk County Private Elementary Schools (2026-27)

Suffolk County Private Elementary Schools (Closed)

Overview

Trends in Total Number of Private Elementary Schools

Trends in the Average Number of Students Per Private Elementary 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 (2015-2025)

ACT Score Trends (2015-2025)

Tuition and Acceptance Rate:

Tuition Cost Trends (2015-2025)

Summer Program Cost Trends (2019-2025)

Percent on Financial Aid Trends (2015-2025)

Financial Aid Grant Trends (2015-2025)

Acceptance Rate Trends (2015-2025)

Endowment Trends (2020-2025)

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