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Best Windham County �� High Schools (2026)

[+] Show Closed �� Schools in Windham County, Connecticut

Windham County �� Schools (Closed)

School

Location

Quick Facts

Plainfield Catholic School (Closed 2006)

(Catholic)

120 Prospect Street
Moosup, CT 06354
(860) 564-3476

Gr: PK-8 | 216 students

St. Mary School (Closed 2010)

(Catholic)

23 Marshall St
Putnam, CT 06260
(860) 928-7046

Gr: K-9 | 154 students

Overview

This County (Windham County)

This State (CT)

# Schools

11 Schools

View Data

Trends in Total Number of �� High Schools
Year	Windham County Total Schools
2025	11
2024	11
2023	8
2022	8
2021	9
2020	9
2019	9
2018	10
2017	9
2016	10
2015	11

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Student Body:

# Students

698 Students

36,258 Students

View Data

Trends in the Average Number of Students Per �� High School
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	87	207	253
2024	111	203	245
2023	113	217	247
2022	154	225	257
2021	154	223	249
2020	155	216	235
2019	152	226	242
2018	144	223	238
2017	157	249	246
2016	159	244	241
2015	142	234	220

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% Average Students of Color

33%

30%

View Data

Percentage of Students of Color Trends (2015-2025)
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	33%	30%	32%
2024	32%	29%	31%
2023	35%	31%	31%
2022	30%	28%	30%
2021	26%	27%	30%
2020	32%	26%	29%
2019	28%	25%	29%
2018	28%	24%	28%
2017	23%	25%	30%
2016	24%	25%	30%
2015	24%	27%	30%

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Academics and Faculty:

# Teachers

245 Teachers

5,444 Teachers

Average Student-Teacher Ratio

5:1

7:1

View Data

Student-Teacher Ratio Trends (2015-2025)
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	5:1	7:1	10:1
2024	6:1	7:1	10:1
2023	5:1	7:1	10:1
2022	5:1	7:1	10:1
2021	5:1	7:1	10:1
2020	5:1	7:1	10:1
2019	6:1	7:1	10:1
2018	6:1	7:1	10:1
2017	7:1	7:1	10:1
2016	6:1	7:1	10:1
2015	6:1	7:1	10:1

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% Average Faculty w/Advanced Degree

79%

73%

View Data

Percentage of Faculty With Advanced Degrees Trends (2015-2025)
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	79%	73%	57%
2024	80%	73%	57%
2023	51%	70%	57%
2022	64%	70%	56%
2021	64%	70%	56%
2020	61%	71%	56%
2019	61%	71%	55%
2018	53%	70%	55%
2017	53%	70%	55%
2016	57%	68%	54%
2015	82%	69%	54%

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Average Class Size

10 students

12 students

View Data

Class Size Trends (2015-2025)
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	10	12	14
2024	10	11	14
2023	12	12	14
2022	12	11	14
2021	12	12	14
2020	12	12	14
2019	12	12	14
2018	11	12	14
2017	11	12	14
2016	11	12	14
2015	11	12	14

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Average Number of AP Courses

21 courses

17 courses

View Data

Trends in Average Number of AP Courses Offered
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	21	17	13
2024	11	15	12
2023	14	16	12
2022	14	15	12
2021	14	15	12
2020	13	16	12
2019	13	16	11
2018	13	15	11
2017	11	15	11
2016	9	14	11
2015	16	15	10

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Average SAT score

1190

(Out of 1600)

1247

View Data

SAT Score Trends (2017-2025)
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	1,190	1,247	1,233
2024	1,190	1,254	1,231
2023	1,190	1,244	1,229
2022	1,190	1,242	1,230
2021	1,190	1,240	1,230
2020	1,190	1,239	1,227
2019	1,190	1,241	1,226
2018	1,190	1,257	1,226
2017	1,190	1,266	1,233

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Tuition and Acceptance Rate:

Average Yearly Tuition Cost

$39,483

$39,344

View Data

Tuition Cost Trends (2015-2025)
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	$39,483	$39,344	$17,997
2024	$46,067	$42,671	$17,011
2023	$49,250	$41,805	$16,191
2022	$47,550	$41,667	$15,821
2021	$47,550	$38,105	$15,331
2020	$47,550	$36,435	$15,046
2019	$40,800	$34,271	$14,791
2018	$35,085	$32,918	$14,527
2017	$34,429	$32,409	$14,161
2016	$45,904	$32,257	$13,713
2015	$35,044	$29,365	$13,065

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Average Summer Program Cost

$5,550

$6,547

View Data

Summer Program Cost Trends (2021-2025)
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	$5,550	$6,465	$1,513
2024	$5,550	$6,465	$1,498
2023	$1,100	$5,542	$1,623
2022	$1,000	$5,157	$1,473
2021	$1,000	$5,095	$1,580

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Average % on Financial Aid

44%

38%

View Data

Percent on Financial Aid Trends (2015-2025)
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	44%	38%	38%
2024	43%	38%	37%
2023	49%	37%	36%
2022	44%	36%	36%
2021	44%	37%	36%
2020	43%	36%	35%
2019	43%	35%	34%
2018	47%	34%	33%
2017	47%	33%	32%
2016	33%	31%	31%
2015	33%	31%	30%

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Average Acceptance Rate

75%

65%

View Data

Acceptance Rate Trends (2015-2025)
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	75%	65%	79%
2024	75%	61%	81%
2018	95%	59%	80%
2017	95%	61%	81%
2016	65%	58%	80%
2015	65%	58%	81%

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Average Endowment Size

$26 million

$68.2 million

View Data

Endowment Trends (2017-2025)
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	$26 M	$68 M	$65 M
2024	$26 M	$73 M	$65 M
2023	$14 M	$74 M	$65 M
2022	$14 M	$76 M	$67 M
2021	$14 M	$77 M	$75 M
2020	$14 M	$73 M	$76 M
2019	$14 M	$77 M	$61 M
2018	$14 M	$87 M	$55 M
2017	$14 M	$90 M	$57 M

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Students by Ethnicity:

0.48

0.56

View Data

Diversity Score Trends
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	0.48	0.57	0.61
2024	0.53	0.56	0.60
2023	0.68	0.55	0.60
2022	0.68	0.51	0.58
2021	0.66	0.51	0.57
2020	0.66	0.51	0.57
2019	0.60	0.48	0.56
2018	0.61	0.48	0.55
2017	0.61	0.46	0.54
2016	0.61	0.47	0.54
2015	0.60	0.46	0.53

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# American Indian Students

9 Students

645 Students

% American Indian Students

View Data

Percentage of �� High School Students of American Indian Trends
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	1%	2%	1%
2024	1%	2%	1%

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# Asian Students

144 Students

2,248 Students

% Asian Students

12%

View Data

Asian Student Percentage Trends
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	12%	6%	5%
2024	11%	6%	6%
2023	15%	7%	6%
2022	13%	6%	5%
2021	12%	7%	5%
2020	12%	7%	5%
2019	11%	6%	5%
2018	11%	7%	5%
2017	10%	5%	4%
2016	10%	5%	4%
2015	11%	5%	4%

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# Hispanic Students

84 Students

2,914 Students

% Hispanic Students

View Data

Hispanic Student Percentage Trends
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	7%	8%	9%
2024	7%	8%	9%
2023	14%	8%	8%
2022	7%	7%	8%
2021	6%	7%	8%
2020	6%	8%	8%
2019	3%	6%	8%
2018	3%	6%	8%
2017	4%	6%	7%
2016	4%	6%	8%
2015	4%	6%	8%

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# Black Students

107 Students

2,975 Students

% Black Students

View Data

Black Student Percentage Trends
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	9%	9%	8%
2024	8%	9%	8%
2023	8%	8%	8%
2022	11%	8%	8%
2021	9%	8%	8%
2020	9%	8%	8%
2019	3%	8%	8%
2018	3%	8%	8%
2017	2%	8%	8%
2016	2%	8%	8%
2015	2%	8%	9%

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# White Students

848 Students

22,237 Students

% White Students

71%

64%

View Data

White Student Percentage Trends
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	71%	64%	59%
2024	67%	64%	60%
2023	52%	65%	60%
2022	51%	69%	62%
2021	53%	68%	63%
2020	53%	68%	64%
2019	57%	71%	64%
2018	54%	71%	65%
2017	55%	73%	66%
2016	55%	72%	66%
2015	57%	72%	66%

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# Hawaiian Students

n/a

29 Students

% Hawaiian Students

n/a

# Two or more races Students

n/a

% of Two or more races Students

n/a

# Others Students

7 Students

3,650 Students

% of Others Students

n/a

11%

View Data

Other Races Student Percentage Trends
Year	Windham County Average	Connecticut (CT) Average	National Average
2024	6%	11%	15%
2023	11%	10%	16%
2022	18%	10%	16%
2021	20%	10%	15%
2020	20%	9%	14%
2019	26%	9%	14%
2018	29%	8%	13%
2017	29%	8%	14%
2016	29%	9%	13%
2015	26%	9%	12%

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All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars

22 extracurriculars

18 extracurriculars

Average Number of Sports

15 sports

13 sports

Frequently Asked Questions

What are the top-ranked private high schools in Windham County, CT?

The private high schools in Windham County, CT include Pomfret School, Rectory School, and Marianapolis Preparatory School.

How many private high schools are located in Windham County?

10 private high schools are located in Windham County.

How diverse are private high schools in Windham County?

Windham County private high schools are approximately 33% minority students, which is higher than the Connecticut private school average of 30%.

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

27% of private high schools in Windham County are religiously affiliated (most commonly Other and Seventh Day Adventist).

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

Popular comparisons of private high schools in Windham County include: Marianapolis Preparatory School vs. Pomfret School, Putnam Science Academy vs. Pomfret School, Pomfret School vs. Marianapolis Preparatory School

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