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

Overview

Trends in Total Number of Private Schools

Year	Middlesex County Total Schools
2025	237
2024	245
2023	240
2022	233
2021	240
2020	246
2019	244
2018	250
2017	244
2016	243
2015	238

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Private schools down 6 in Middlesex County, falling from 243 in 2016 to 237 in 2025.

# Students

31,685 Students

126,166 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	Middlesex County Average	Massachusetts (MA) Average	National Average
2025	152	159	179
2024	152	156	172
2023	154	159	174
2022	161	162	185
2021	160	159	180
2020	155	155	171
2019	157	157	175
2018	158	157	172
2017	164	160	180
2016	163	159	178
2015	154	152	167

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Average students down 11 in Middlesex County private schools, from 163 in 2016 to 152 in 2025.

% Average Students of Color

33%

32%

View Data

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

Percentage of Students of Color Trends (2015-2025)

Year	Middlesex County Average	Massachusetts (MA) Average	National Average
2025	31%	31%	34%
2024	29%	29%	34%
2023	33%	30%	33%
2022	32%	29%	33%
2021	31%	28%	32%
2020	29%	27%	32%
2019	26%	26%	31%
2018	26%	25%	31%
2017	28%	26%	32%
2016	27%	27%	32%
2015	28%	28%	32%

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Students of color up 4 points in Middlesex County private schools, from 27% in 2016 to 31% in 2025.

Academics and Faculty:

# Teachers

4,201 Teachers

15,776 Teachers

Average Student-Teacher Ratio

8:1

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

Student-Teacher Ratio Trends (2015-2025)

Year	Middlesex County Average	Massachusetts (MA) Average	National Average
2025	8:1	8:1	11:1
2024	8:1	8:1	11:1
2023	8:1	8:1	11:1
2022	8:1	8:1	11:1
2021	8:1	8:1	11:1
2020	8:1	8:1	12:1
2019	8:1	9:1	12:1
2018	8:1	9:1	12:1
2017	8:1	9:1	12:1
2016	8:1	9:1	12:1
2015	8:1	9:1	12:1

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Student-teacher ratio lower in Middlesex County private schools, staying at 8:1 while Massachusetts was 8:1 and the U.S. 11:1 in 2025.

% Average Faculty w/Advanced Degree

73%

68%

View Data

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

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

Year	Middlesex County Average	Massachusetts (MA) Average	National Average
2025	73%	67%	55%
2024	73%	67%	54%
2023	72%	67%	54%
2022	71%	67%	54%
2021	71%	67%	54%
2020	71%	66%	54%
2019	71%	66%	53%
2018	70%	65%	53%
2017	69%	64%	53%
2016	68%	64%	52%
2015	68%	64%	52%

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Average Class Size

14 students

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

Class Size Trends (2015-2025)

Year	Middlesex County Average	Massachusetts (MA) Average	National Average
2025	14	14	16
2024	15	14	15
2023	15	14	15
2022	14	14	15
2021	14	14	15
2020	14	14	15
2019	14	14	15
2018	14	14	15
2017	14	14	15
2016	14	14	15
2015	14	14	15

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Class size now 14 in Middlesex County private schools, matching Massachusetts and sitting one student smaller than the U.S. in 2025.

Average Number of AP Courses

15 courses

16 courses

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

Trends in Average Number of AP Courses Offered

Year	Middlesex County Average	Massachusetts (MA) Average	National Average
2025	15	16	13
2024	15	15	12
2023	15	14	11
2022	15	15	11
2021	13	14	11
2020	13	14	11
2019	13	13	11
2018	14	13	11
2017	12	13	10
2016	11	12	10
2015	11	11	10

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Average SAT score

1318

(Out of 1600)

1289

View Data

SAT Score Trends (2017-2025)

Year	Middlesex County Average	Massachusetts (MA) Average	National Average
2025	1320	1289	1233
2024	1315	1291	1230
2023	1305	1272	1228
2022	1291	1266	1229
2021	1291	1263	1229
2020	1279	1254	1226
2019	1259	1238	1226
2018	1258	1235	1226
2017	1297	1277	1233

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SAT score up 23 points in Middlesex County private schools, rising from 1297 in 2017 to 1320 in 2025.

Average ACT score

(Out of 36)

View Data

ACT Score Trends (2019-2025)

Year	Middlesex County Average	Massachusetts (MA) Average	National Average
2025	29	29	26
2024	29	29	26
2023	28	29	26
2022	28	29	26
2021	28	29	26
2020	28	29	25
2019	27	28	25

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ACT score up 2 points in Middlesex County private schools, rising from 27 in 2019 to 29 in 2025 and matching Massachusetts.

Tuition and Acceptance Rate:

Average Yearly Tuition Cost

$29,468

$26,649

View Data

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

Tuition Cost Trends (2015-2025)

Year	Middlesex County Average	Massachusetts (MA) Average	National Average
2025	$29,097	$26,160	$13,580
2024	$27,865	$25,089	$13,227
2023	$27,033	$23,985	$12,716
2022	$25,804	$22,992	$12,216
2021	$24,783	$22,318	$11,969
2020	$24,181	$21,681	$11,683
2019	$23,352	$21,086	$11,449
2018	$22,685	$20,570	$11,183
2017	$22,115	$20,208	$10,900
2016	$21,088	$19,191	$10,523
2015	$20,333	$18,356	$10,108

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Tuition up $8,009 in Middlesex County, rising from $21,088 in 2016 to $29,097 in 2025.

Average Summer Program Cost

$2,641

$2,798

View Data

Summer Program Cost Trends (2021-2025)

Year	Middlesex County Average	Massachusetts (MA) Average	National Average
2025	$2,333	$2,893	$1,152
2024	$2,440	$2,670	$1,128
2023	$2,336	$2,623	$1,156
2022	$2,426	$2,725	$1,102
2021	$2,392	$2,818	$1,125

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Summer cost down 4% in Middlesex County private schools, from $2,440 in 2024 to $2,333 in 2025.

Average % on Financial Aid

34%

37%

View Data

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

Percent on Financial Aid Trends (2015-2025)

Year	Middlesex County Average	Massachusetts (MA) Average	National Average
2025	33%	36%	34%
2024	35%	36%	34%
2023	35%	37%	34%
2022	35%	36%	33%
2021	35%	35%	33%
2020	35%	35%	32%
2019	33%	34%	31%
2018	32%	33%	30%
2017	31%	32%	30%
2016	30%	31%	29%
2015	29%	31%	28%

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Average Financial Aid Grant

$24,934

$18,694

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

Financial Aid Grant Trends (2015-2025)

Year	Middlesex County Average	Massachusetts (MA) Average	National Average
2025	$24,947	$17,137	$7,073
2024	$23,629	$16,262	$6,930
2023	$21,882	$15,114	$6,469
2022	$21,688	$14,744	$6,289
2021	$21,160	$14,176	$6,055
2020	$20,699	$14,234	$5,921
2019	$19,664	$13,455	$5,795
2018	$16,829	$12,706	$5,456
2017	$16,848	$12,090	$5,319
2016	$18,753	$12,060	$5,105
2015	$17,945	$12,547	$5,030

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Average Acceptance Rate

64%

73%

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

Acceptance Rate Trends (2015-2025)

Year	Middlesex County Average	Massachusetts (MA) Average	National Average
2025	62%	72%	85%
2024	61%	70%	85%
2023	62%	71%	85%
2022	60%	70%	85%
2021	63%	71%	85%
2020	63%	71%	85%
2019	63%	71%	85%
2018	62%	71%	85%
2017	62%	71%	85%
2016	62%	70%	85%
2015	61%	69%	85%

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Average Endowment Size

$97.27 million

$94.31 million

View Data

Endowment Trends (2017-2025)

Year	Middlesex County Average	Massachusetts (MA) Average	National Average
2025	$79 M	$88 M	$30 M
2024	$82 M	$105 M	$39 M
2023	$82 M	$103 M	$39 M
2022	$83 M	$100 M	$40 M
2021	$82 M	$102 M	$40 M
2020	$85 M	$104 M	$40 M
2019	$57 M	$107 M	$40 M
2018	$64 M	$127 M	$43 M
2017	$71 M	$130 M	$45 M

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Students by Ethnicity:

0.62

0.63

View Data

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

Diversity Score Trends

Year	Middlesex County Average	Massachusetts (MA) Average	National Average
2025	0.62	0.63	0.65
2024	0.63	0.63	0.65
2023	0.64	0.62	0.65
2022	0.62	0.60	0.64
2021	0.62	0.60	0.64
2020	0.62	0.59	0.64
2019	0.60	0.57	0.63
2018	0.60	0.58	0.63
2017	0.58	0.55	0.61
2016	0.58	0.55	0.61
2015	0.59	0.55	0.61

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Diversity score held near 0.62 in Middlesex County private schools, ending at 0.62 in 2025 after rising from 0.58 in 2016.

# American Indian Students

33 Students

187 Students

% American Indian Students

<1%

# Asian Students

1,915 Students

6,791 Students

% Asian Students

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

Asian Student Percentage Trends

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

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Asian share held at 7% in Middlesex County private schools in 2023 and 2025, while Massachusetts was 6% and the U.S. was 5%.

# Hispanic Students

1,555 Students

7,564 Students

% Hispanic Students

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

Hispanic Student Percentage Trends

Year	Middlesex County Average	Massachusetts (MA) Average	National Average
2025	5%	6%	9%
2024	5%	6%	9%
2023	5%	6%	9%
2022	5%	5%	8%
2021	5%	5%	9%
2020	5%	5%	9%
2019	4%	5%	8%
2018	4%	5%	8%
2017	4%	4%	8%
2016	4%	4%	8%
2015	4%	5%	8%

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Hispanic share up 1 point in Middlesex County private schools, rising from 4% in 2016 to 5% in 2025 while Massachusetts increased from 4% to 6%.

# Black Students

1,684 Students

8,693 Students

% Black Students

View Data

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

Black Student Percentage Trends

Year	Middlesex County Average	Massachusetts (MA) Average	National Average
2025	5%	7%	7%
2024	6%	7%	7%
2023	7%	7%	8%
2022	6%	6%	7%
2021	6%	6%	7%
2020	6%	6%	8%
2019	6%	6%	7%
2018	6%	6%	7%
2017	6%	6%	7%
2016	6%	6%	7%
2015	7%	7%	8%

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Black students down 1 point in Middlesex County private schools, from 6% in 2024 to 5% in 2025.

# White Students

16,809 Students

67,896 Students

% White Students

54%

55%

View Data

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

White Student Percentage Trends

Year	Middlesex County Average	Massachusetts (MA) Average	National Average
2025	54%	54%	52%
2024	54%	54%	52%
2023	52%	56%	52%
2022	55%	58%	54%
2021	55%	59%	54%
2020	56%	59%	54%
2019	58%	61%	56%
2018	58%	61%	56%
2017	60%	63%	58%
2016	61%	64%	58%
2015	60%	64%	58%

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White students down 7 points in Middlesex County private schools, from 61% in 2016 to 54% in 2025.

# Hawaiian Students

17 Students

83 Students

% Hawaiian Students

<1%

# Others Students

8,864 Students

33,188 Students

% of Others Students

29%

27%

View Data

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

Other Races Student Percentage Trends

Year	Middlesex County Average	Massachusetts (MA) Average	National Average
2025	29%	27%	26%
2024	28%	27%	26%
2023	29%	25%	25%
2022	27%	24%	25%
2021	26%	24%	25%
2020	25%	23%	24%
2019	25%	22%	24%
2018	25%	23%	23%
2017	23%	21%	22%
2016	22%	21%	22%
2015	22%	19%	21%

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Other-race students up 7 points in Middlesex County private schools, rising from 22% in 2016 to 29% in 2025.

All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars

17 extracurriculars

13 extracurriculars

Average Number of Sports

9 sports

Frequently Asked Questions

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

The private schools in Middlesex County, MA include Middlesex School, The Cambridge School Of Weston, and Belmont Hill School.

How many private schools are located in Middlesex County?

234 private schools are located in Middlesex County.

How much do private schools cost in Middlesex County?

The average tuition cost is $29,468, which is higher than the Massachusetts private school average tuition cost of $26,649.

How diverse are private schools in Middlesex County?

Middlesex County private schools are approximately 33% minority students, which is higher than the Massachusetts private school average of 32%.

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

13% of all K-12 students in Middlesex County are educated in private schools (compared to the MA state average of 12%).

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

23% of private schools in Middlesex County are religiously affiliated (most commonly Catholic and Christian).

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

Popular comparisons of private schools in Middlesex County include: The Children's Center At Groton vs. Groton Community School, The Kendall School vs. Belmont Day School, The Goddard School vs. Next Generation Childrens Center

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