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

Middlesex County Private Schools (Closed)

St. John School

Gr: K-8 | 114 students

Catholic

5 Saint Johns Sq

Middletown, CT 06457

(860) 347-3202

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St. Sebastian School

Gr: PK-8 | 132 students

Catholic

61 Durant Ter

Middletown, CT 06457

(860) 347-3438

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Overview

Academics and Faculty:

# Teachers

285 Teachers

7,884 Teachers

Average Student-Teacher Ratio

7:1

8:1

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Student-Teacher Ratio Trends (2015-2025)
Year	Middlesex County Average	Connecticut (CT) Average	National Average
2025	8:1	8:1	11:1
2024	7:1	8:1	11:1
2023	7:1	8:1	11:1
2022	7:1	8:1	11:1
2021	7:1	8:1	11:1
2020	7:1	8:1	12:1
2019	7:1	8:1	12:1
2018	7:1	8:1	12:1
2017	9:1	9:1	12:1
2016	9:1	9:1	12:1
2015	9:1	9:1	12:1

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% Average Faculty w/Advanced Degree

59%

70%

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Percentage of Faculty With Advanced Degrees Trends (2015-2025)
Year	Middlesex County Average	Connecticut (CT) Average	National Average
2025	59%	70%	55%
2024	59%	70%	54%
2023	56%	68%	54%
2022	56%	68%	54%
2021	65%	69%	54%
2020	61%	69%	54%
2019	61%	69%	53%
2018	63%	68%	53%
2017	75%	68%	53%
2016	75%	68%	52%
2015	74%	69%	52%

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Average Class Size

11 students

14 students

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Class Size Trends (2015-2025)
Year	Middlesex County Average	Connecticut (CT) Average	National Average
2025	11	14	15
2024	11	13	15
2023	11	13	15
2022	11	13	15
2021	11	13	15
2020	11	14	15
2019	11	14	15
2018	11	14	15
2017	11	14	15
2016	11	14	15
2015	11	13	15

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Average Number of AP Courses

11 courses

18 courses

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Trends in Average Number of AP Courses Offered
Year	Middlesex County Average	Connecticut (CT) Average	National Average
2025	11	16	13
2024	13	15	12
2023	13	15	11
2022	13	15	11
2021	13	15	11
2020	12	16	11
2019	12	16	11
2018	9	15	11
2017	8	14	10
2016	8	14	10
2015	8	15	10

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Average SAT score

1064

(Out of 1600)

1254

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SAT Score Trends (2015-2025)
Year	Middlesex County Average	Connecticut (CT) Average	National Average
2025	1064	1247	1233
2024	1064	1254	1230
2023	1064	1244	1228
2022	1064	1242	1229
2021	1064	1240	1229
2020	1064	1239	1226
2019	1064	1241	1226
2018	1064	1257	1226
2017	1064	1266	1233
2016	1064	1292	1306
2015	1064	1220	1258

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Tuition and Acceptance Rate:

Average Yearly Tuition Cost

$38,733

$28,702

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Tuition Cost Trends (2015-2025)
Year	Middlesex County Average	Connecticut (CT) Average	National Average
2025	$38,733	$28,288	$15,012
2024	$42,980	$30,554	$13,254
2023	$39,980	$28,947	$12,626
2022	$45,825	$28,819	$12,187
2021	$45,825	$26,681	$11,800
2020	$42,075	$26,067	$11,512
2019	$42,075	$24,505	$11,293
2018	$34,110	$25,386	$11,017
2017	$33,210	$24,171	$10,708
2016	$31,325	$23,194	$10,356
2015	$31,325	$21,099	$9,939

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Average Summer Program Cost

$4,415

$4,058

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Summer Program Cost Trends (2018-2025)
Year	Middlesex County Average	Connecticut (CT) Average	National Average
2025	$4,415	$4,194	$1,152
2024	$4,415	$4,479	$1,128
2023	$3,453	$3,566	$1,156
2022	$3,453	$3,340	$1,102
2021	$4,517	$3,320	$1,125
2020	$3,850	$3,490	$1,217
2019	$4,683	$3,569	$1,305
2018	$6,750	$3,978	$1,108

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Average % on Financial Aid

35%

37%

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Percent on Financial Aid Trends (2015-2025)
Year	Middlesex County Average	Connecticut (CT) Average	National Average
2025	36%	36%	34%
2024	36%	37%	34%
2023	39%	36%	34%
2022	39%	35%	33%
2021	39%	35%	33%
2020	38%	35%	32%
2019	37%	33%	31%
2018	37%	32%	30%
2017	39%	30%	30%
2016	36%	29%	29%
2015	36%	29%	28%

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Average Financial Aid Grant

$7,690

$17,238

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Financial Aid Grant Trends (2015-2025)
Year	Middlesex County Average	Connecticut (CT) Average	National Average
2025	$6,475	$17,086	$7,073
2024	$6,475	$16,673	$6,930
2023	$4,633	$17,289	$6,469
2022	$4,633	$17,371	$6,289
2021	$4,633	$16,911	$6,055
2020	$4,633	$16,537	$5,921
2019	$4,633	$16,496	$5,795
2018	$4,633	$16,370	$5,456
2017	$4,633	$15,732	$5,319
2016	$4,300	$14,806	$5,105
2015	$4,300	$13,132	$5,030

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Average Acceptance Rate

86%

71%

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Acceptance Rate Trends (2015-2025)
Year	Middlesex County Average	Connecticut (CT) Average	National Average
2025	82%	71%	81%
2024	77%	70%	85%
2023	77%	69%	85%
2022	77%	68%	85%
2021	77%	69%	85%
2020	77%	68%	85%
2019	77%	69%	85%
2018	80%	69%	85%
2017	80%	70%	85%
2016	80%	69%	85%
2015	80%	69%	85%

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Average Endowment Size

$3 million

$64.96 million

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Endowment Trends (2023-2025)
Year	Middlesex County Average	Connecticut (CT) Average	National Average
2025	$5 M	$59 M	$60 M
2024	$5 M	$63 M	$59 M
2023	$5 M	$63 M	$71 M

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Students by Ethnicity:

0.50

0.63

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Diversity Score Trends
Year	Middlesex County Average	Connecticut (CT) Average	National Average
2025	0.51	0.63	0.65
2024	0.50	0.63	0.65
2023	0.47	0.62	0.65
2022	0.45	0.59	0.64
2021	0.45	0.59	0.64
2020	0.46	0.59	0.64
2019	0.40	0.56	0.63
2018	0.40	0.56	0.63
2017	0.35	0.53	0.61
2016	0.35	0.54	0.61
2015	0.38	0.54	0.61

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# American Indian Students

4 Students

716 Students

% American Indian Students

n/a

# Asian Students

87 Students

2,908 Students

% Asian Students

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Asian Student Percentage Trends
Year	Middlesex County Average	Connecticut (CT) Average	National Average
2025	4%	5%	5%
2024	4%	5%	5%
2023	4%	5%	5%
2022	5%	5%	4%
2021	5%	5%	4%
2020	5%	5%	4%
2019	3%	5%	4%
2018	3%	5%	4%
2017	2%	4%	4%
2016	2%	4%	4%
2015	2%	4%	4%

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# Hispanic Students

174 Students

5,562 Students

% Hispanic Students

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Hispanic Student Percentage Trends
Year	Middlesex County Average	Connecticut (CT) Average	National Average
2025	8%	9%	9%
2024	8%	9%	9%
2023	8%	8%	9%
2022	8%	7%	8%
2021	8%	7%	9%
2020	8%	8%	9%
2019	6%	6%	8%
2018	6%	6%	8%
2017	4%	5%	8%
2016	4%	6%	8%
2015	4%	6%	8%

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# Black Students

135 Students

4,891 Students

% Black Students

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Black Student Percentage Trends
Year	Middlesex County Average	Connecticut (CT) Average	National Average
2025	6%	8%	7%
2024	6%	8%	7%
2023	6%	7%	8%
2022	6%	8%	7%
2021	6%	8%	7%
2020	6%	8%	8%
2019	6%	7%	7%
2018	6%	7%	7%
2017	4%	7%	7%
2016	4%	7%	7%
2015	5%	8%	8%

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# White Students

1,563 Students

34,906 Students

% White Students

69%

56%

View Data

White Student Percentage Trends
Year	Middlesex County Average	Connecticut (CT) Average	National Average
2025	68%	56%	52%
2024	69%	56%	52%
2023	72%	58%	52%
2022	73%	61%	54%
2021	73%	60%	54%
2020	73%	60%	54%
2019	77%	64%	56%
2018	77%	64%	56%
2017	80%	66%	58%
2016	80%	65%	58%
2015	78%	65%	58%

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# Hawaiian Students

3 Students

63 Students

% Hawaiian Students

n/a

# Two or more races Students

n/a

% of Two or more races Students

n/a

# Others Students

308 Students

12,827 Students

% of Others Students

13%

21%

View Data

Other Races Student Percentage Trends
Year	Middlesex County Average	Connecticut (CT) Average	National Average
2025	14%	21%	26%
2024	13%	21%	26%
2023	10%	20%	25%
2022	8%	19%	25%
2021	8%	20%	25%
2020	8%	19%	24%
2019	8%	18%	24%
2018	8%	18%	23%
2017	10%	18%	22%
2016	10%	18%	22%
2015	11%	17%	21%

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All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars

7 extracurriculars

13 extracurriculars

Average Number of Sports

9 sports

10 sports

Frequently Asked Questions

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

The private schools in Middlesex County, CT include The Oxford Academy, Northwest Childrens Center, and Mercy High School.

How many private schools are located in Middlesex County?

20 private schools are located in Middlesex County.

How diverse are private schools in Middlesex County?

Middlesex County private schools are approximately 25% minority students, which is lower than the Connecticut private school average of 31%.

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

10% of all K-12 students in Middlesex County are educated in private schools (compared to the CT state average of 12%).

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

24% of private schools in Middlesex County are religiously affiliated (most commonly Catholic).

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

Popular comparisons of private schools in Middlesex County include: Montessori Circle Of Friends vs. The Children's Tree Montessori School, Cromwell KinderCare vs. Middlefield Children's Center

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Year	Middlesex County Average	Connecticut (CT) Average	National Average
2025	118	165	179
2024	117	161	172
2023	128	163	174
2022	139	168	185
2021	143	166	180
2020	144	163	171
2019	140	167	175
2018	146	165	172
2017	178	175	180
2016	178	172	178
2015	158	167	167

Quick Facts (2026)

Quick Facts (2026)

Top Ranked Middlesex County Private Schools (2026)

Middlesex 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 (2015-2025)

Tuition and Acceptance Rate:

Tuition Cost Trends (2015-2025)

Summer Program Cost Trends (2018-2025)

Percent on Financial Aid Trends (2015-2025)

Financial Aid Grant Trends (2015-2025)

Acceptance Rate Trends (2015-2025)

Endowment Trends (2023-2025)

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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Quick Links

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Best Middlesex County Private Schools (2026)

Top Ranked Middlesex County Private Schools (2026)

Middlesex 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 (2015-2025)

Tuition and Acceptance Rate:

Tuition Cost Trends (2015-2025)

Summer Program Cost Trends (2018-2025)

Percent on Financial Aid Trends (2015-2025)

Financial Aid Grant Trends (2015-2025)

Acceptance Rate Trends (2015-2025)

Endowment Trends (2023-2025)

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