[+] Show Closed Private Schools in Suffolk County, Massachusetts

Overview

Academics and Faculty:

# Teachers

631 Teachers

8,489 Teachers

Average Student-Teacher Ratio

7:1

6:1

View Data

Student-Teacher Ratio Trends (2015-2025)
Year	Suffolk County Average	Massachusetts (MA) Average	National Average
2025	7:1	6:1	10:1
2024	7:1	7:1	10:1
2023	8:1	7:1	10:1
2022	8:1	7:1	10:1
2021	8:1	7:1	10:1
2020	8:1	7:1	10:1
2019	9:1	7:1	10:1
2018	9:1	7:1	10:1
2017	9:1	7:1	10:1
2016	9:1	7:1	10:1
2015	10:1	7:1	10:1

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% Average Faculty w/Advanced Degree

85%

71%

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Percentage of Faculty With Advanced Degrees Trends (2015-2025)
Year	Suffolk County Average	Massachusetts (MA) Average	National Average
2025	85%	70%	57%
2024	85%	71%	57%
2023	82%	70%	57%
2022	84%	70%	56%
2021	84%	69%	56%
2020	83%	69%	56%
2019	81%	67%	55%
2018	81%	66%	55%
2017	82%	65%	55%
2016	79%	63%	54%
2015	77%	63%	54%

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Average Class Size

13 students

12 students

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Class Size Trends (2015-2025)
Year	Suffolk County Average	Massachusetts (MA) Average	National Average
2025	13	12	14
2024	13	12	14
2023	13	12	14
2022	13	12	14
2021	13	12	14
2020	14	12	14
2019	14	12	14
2018	14	12	14
2017	13	12	14
2016	13	12	14
2015	13	12	14

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Average Number of AP Courses

22 courses

16 courses

View Data

Trends in Average Number of AP Courses Offered
Year	Suffolk County Average	Massachusetts (MA) Average	National Average
2025	23	16	13
2024	13	15	12
2023	14	14	12
2022	14	15	12
2021	14	14	12
2020	13	14	12
2019	14	13	11
2018	14	13	11
2017	13	13	11
2016	13	12	11
2015	12	11	10

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Average SAT score

1401

(Out of 1600)

1287

View Data

SAT Score Trends (2015-2025)
Year	Suffolk County Average	Massachusetts (MA) Average	National Average
2025	1397	1289	1233
2024	1411	1291	1231
2023	1365	1272	1229
2022	1296	1266	1230
2021	1296	1263	1230
2020	1238	1254	1227
2019	1238	1238	1226
2018	1163	1235	1226
2017	1403	1277	1233
2016	1500	1338	1308
2015	1216	1149	1265

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Average ACT score

(Out of 36)

View Data

ACT Score Trends (2018-2025)
Year	Suffolk County Average	Massachusetts (MA) Average	National Average
2025	30	29	26
2024	30	29	26
2023	30	29	26
2022	30	29	26
2021	30	29	26
2020	30	29	26
2019	30	28	25
2018	28	28	25

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Tuition and Acceptance Rate:

Average Yearly Tuition Cost

$27,234

$40,853

View Data

Tuition Cost Trends (2015-2025)
Year	Suffolk County Average	Massachusetts (MA) Average	National Average
2025	$26,845	$40,860	$17,997
2024	$30,081	$40,275	$17,011
2023	$28,489	$36,992	$16,191
2022	$27,540	$36,355	$15,821
2021	$26,716	$33,672	$15,331
2020	$25,605	$32,017	$15,046
2019	$25,120	$31,024	$14,791
2018	$24,745	$31,240	$14,527
2017	$23,619	$31,028	$14,161
2016	$23,247	$30,547	$13,713
2015	$22,419	$29,745	$13,065

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Average Summer Program Cost

$560

$5,750

View Data

Summer Program Cost Trends (2019-2025)
Year	Suffolk County Average	Massachusetts (MA) Average	National Average
2025	$560	$5,653	$1,513
2024	$425	$5,489	$1,498
2022	$425	$5,553	$1,473
2021	$425	$4,844	$1,580
2020	$425	$4,649	$1,743
2019	$425	$4,990	$1,900

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Average % on Financial Aid

45%

40%

View Data

Percent on Financial Aid Trends (2015-2025)
Year	Suffolk County Average	Massachusetts (MA) Average	National Average
2025	45%	39%	38%
2024	47%	40%	37%
2023	50%	40%	36%
2022	43%	38%	36%
2021	47%	37%	36%
2020	47%	37%	35%
2019	47%	35%	34%
2018	46%	35%	33%
2017	36%	34%	32%
2016	33%	32%	31%
2015	43%	33%	30%

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Average Financial Aid Grant

$27,562

$28,887

View Data

Financial Aid Grant Trends (2015-2025)
Year	Suffolk County Average	Massachusetts (MA) Average	National Average
2025	$27,255	$27,597	$9,714
2024	$27,238	$26,276	$9,498
2023	$29,541	$25,898	$8,890
2022	$24,343	$24,748	$8,717
2021	$24,180	$24,315	$8,472
2020	$23,297	$23,298	$8,370
2019	$22,963	$22,827	$7,924
2018	$19,666	$20,996	$7,471
2017	$19,191	$21,066	$7,202
2016	$18,302	$20,192	$6,993
2015	$16,104	$19,873	$6,822

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Average Acceptance Rate

66%

62%

View Data

Acceptance Rate Trends (2015-2025)
Year	Suffolk County Average	Massachusetts (MA) Average	National Average
2025	66%	62%	79%
2024	49%	54%	81%
2023	38%	55%	81%
2022	44%	55%	81%
2021	44%	56%	81%
2020	44%	57%	81%
2019	44%	56%	81%
2018	50%	56%	80%
2017	73%	57%	81%
2016	73%	55%	80%
2015	55%	55%	81%

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Average Endowment Size

$61.9 million

$117.15 million

View Data

Endowment Trends (2017-2025)
Year	Suffolk County Average	Massachusetts (MA) Average	National Average
2025	$61 M	$110 M	$65 M
2024	$14 M	$132 M	$65 M
2023	$39 M	$129 M	$65 M
2022	$39 M	$125 M	$67 M
2021	$70 M	$127 M	$75 M
2020	$70 M	$121 M	$76 M
2019	$70 M	$130 M	$61 M
2018	$70 M	$142 M	$55 M
2017	$70 M	$141 M	$57 M

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Students by Ethnicity:

0.68

0.52

View Data

Diversity Score Trends
Year	Suffolk County Average	Massachusetts (MA) Average	National Average
2025	0.68	0.52	0.61
2024	0.68	0.52	0.60
2023	0.57	0.51	0.60
2022	0.58	0.50	0.58
2021	0.58	0.49	0.57
2020	0.58	0.48	0.57
2019	0.57	0.45	0.56
2018	0.57	0.45	0.55
2017	0.60	0.46	0.54
2016	0.61	0.46	0.54
2015	0.62	0.45	0.53

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# American Indian Students

5 Students

127 Students

% American Indian Students

n/a

# Asian Students

292 Students

4,063 Students

% Asian Students

View Data

Asian Student Percentage Trends
Year	Suffolk County Average	Massachusetts (MA) Average	National Average
2025	7%	7%	5%
2024	7%	8%	6%
2023	7%	8%	6%
2022	6%	7%	5%
2021	7%	8%	5%
2020	6%	8%	5%
2019	7%	7%	5%
2018	6%	7%	5%
2017	6%	5%	4%
2016	6%	5%	4%
2015	7%	6%	4%

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# Hispanic Students

370 Students

3,645 Students

% Hispanic Students

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Hispanic Student Percentage Trends
Year	Suffolk County Average	Massachusetts (MA) Average	National Average
2025	8%	6%	9%
2024	8%	6%	9%
2023	8%	6%	8%
2022	7%	5%	8%
2021	7%	5%	8%
2020	7%	5%	8%
2019	7%	5%	8%
2018	7%	5%	8%
2017	8%	5%	7%
2016	8%	5%	8%
2015	8%	5%	8%

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# Black Students

854 Students

3,816 Students

% Black Students

19%

View Data

Black Student Percentage Trends
Year	Suffolk County Average	Massachusetts (MA) Average	National Average
2025	19%	7%	8%
2024	19%	7%	8%
2023	18%	7%	8%
2022	11%	6%	8%
2021	11%	6%	8%
2020	12%	6%	8%
2019	12%	6%	8%
2018	12%	6%	8%
2017	15%	7%	8%
2016	15%	7%	8%
2015	17%	8%	9%

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# White Students

2,265 Students

39,391 Students

% White Students

51%

67%

View Data

White Student Percentage Trends
Year	Suffolk County Average	Massachusetts (MA) Average	National Average
2025	51%	67%	59%
2024	50%	67%	60%
2023	62%	68%	60%
2022	62%	70%	62%
2021	62%	70%	63%
2020	62%	71%	64%
2019	63%	73%	64%
2018	64%	73%	65%
2017	60%	73%	66%
2016	60%	73%	66%
2015	58%	73%	66%

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# Hawaiian Students

3 Students

35 Students

% Hawaiian Students

n/a

# Two or more races Students

n/a

% of Two or more races Students

n/a

# Others Students

667 Students

7,368 Students

% of Others Students

15%

13%

View Data

Other Races Student Percentage Trends
Year	Suffolk County Average	Massachusetts (MA) Average	National Average
2025	15%	13%	17%
2024	16%	12%	15%
2023	5%	11%	16%
2022	14%	12%	16%
2021	13%	11%	15%
2020	13%	10%	14%
2019	11%	9%	14%
2018	11%	9%	13%
2017	11%	9%	14%
2016	11%	9%	13%
2015	10%	7%	12%

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All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars

16 extracurriculars

20 extracurriculars

Average Number of Sports

9 sports

12 sports

Frequently Asked Questions

What are the top ranked private high schools in Suffolk County, MA?

The private high schools in Suffolk County, MA include Winsor School, Boston University Academy, and The Roxbury Latin School.

How many private high schools are located in Suffolk County?

21 private high schools are located in Suffolk County.

How much do private high schools cost in Suffolk County?

The average tuition cost is $27,234, which is lower than the Massachusetts private school average tuition cost of $40,853.

How diverse are private high schools in Suffolk County?

Suffolk County private high schools are approximately 41% minority students, which is higher than the Massachusetts private school average of 28%.

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

45% of private high schools in Suffolk County are religiously affiliated (most commonly Jewish and Catholic).

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Quick Facts (2026)

Quick Facts (2026)

Top Ranked Suffolk County Private High Schools (2026)

Suffolk 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 (2015-2025)

ACT Score Trends (2018-2025)

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 (2017-2025)

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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Trends in the Average Number of Students Per Private High School
Year	Suffolk County Average	Massachusetts (MA) Average	National Average
2025	202	225	253
2024	202	223	245
2023	247	237	247
2022	276	240	257
2021	275	234	249
2020	265	227	235
2019	281	231	242
2018	267	229	238
2017	262	233	246
2016	262	235	241
2015	238	213	220

Best Suffolk County Private High Schools (2026)

Top Ranked Suffolk County Private High Schools (2026)

Suffolk 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 (2015-2025)

ACT Score Trends (2018-2025)

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 (2017-2025)

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