Woodside Montessori Academy Photo - Sensorial Montessori materials allow children opportunities for developing the senses, concentration, executive function skills and problem solving.

Woodside Montessori Academy

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Best Millis Private Schools (2026)

For the 2026 school year, there are 2 private schools serving 193 students in Millis, MA (there are 4 public schools, serving 1,186 public students). 14% of all K-12 students in Millis, MA are educated in private schools (compared to the MA state average of 12%).

The private school in Millis, MA is Woodside Montessori Academy.

The average acceptance rate is 85%, which is higher than the Massachusetts private school average acceptance rate of 71%.

50% of private schools in Millis, MA are religiously affiliated (most commonly Catholic).

Sparhawk Academy Photo

Sparhawk Academy Photo

Woodside Montessori Academy Photo - Sensorial Montessori materials allow children opportunities for developing the senses, concentration, executive function skills and problem solving.

Top-Ranked Millis Private Schools (2026)

School

Location

Quick Facts

Woodside Montessori Academy

Woodside Montessori Academy Photo - Sensorial Montessori materials allow children opportunities for developing the senses, concentration, executive function skills and problem solving.

Montessori School

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(2)

350 Village St
Millis, MA 02054
(508) 376-5320

Gr: PK-8 | 98 students Avg. class size: 20 students Extracurrculars: 6 Tuition & acceptance rate listed

Sparhawk Academy

Sparhawk Academy Photo

All-boys (Catholic)

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376 ORCHARD ST
Millis, MA 02054
(617) 727-4295

Gr: 3-10 | 95 students Avg. class size: 13 students Sports: 4 | Extracurrculars: 4 Tuition & acceptance rate listed

[+] Show Closed Private Schools in Millis, Massachusetts

Millis, Massachusetts Private Schools (Closed)

School

Location

Quick Facts

Millis Country Day School (Closed 2020)

Daycare / Preschool

210 Pleasant St
Millis, MA 02054
(508) 376-8425

Gr: K | 21 students

Overview

This Town (Millis)

This State (MA)

# Schools

2 Schools

Trends in Total Number of Private Schools
Year	Millis, MA Total Schools
2025	2
2024	2
2023	2
2022	2
2021	3
2020	2
2019	2
2018	2
2017	2
2016	2
2015	2

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Student Body:

# Students

193 Students

127,035 Students

Trends in the Average Number of Students Per Private School
Year	Millis, MA Average	Massachusetts (MA) Average	National Average
2025	97	159	179
2024	97	156	172
2023	100	159	174
2022	94	162	185
2021	63	159	180
2020	53	155	171
2019	54	157	175
2018	54	157	172
2017	54	160	180
2016	54	159	178
2015	41	152	167

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% Average Students of Color

14%

31%

Percentage of Students of Color Trends (2015-2025)
Year	Millis, MA Average	Massachusetts (MA) Average	National Average
2025	14%	31%	34%
2024	14%	29%	34%
2023	19%	30%	33%
2022	16%	29%	33%
2021	15%	28%	32%
2020	19%	27%	32%
2019	18%	26%	31%
2018	18%	25%	31%
2017	25%	26%	32%
2016	25%	27%	32%
2015	57%	28%	32%

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Academics and Faculty:

# Teachers

23 Teachers

15,734 Teachers

Average Student-Teacher Ratio

8:1

8:1

Student-Teacher Ratio Trends (2015-2025)
Year	Millis, MA Average	Massachusetts (MA) Average	National Average
2025	8:1	8:1	11:1
2024	8:1	8:1	11:1
2023	7:1	8:1	11:1
2022	6:1	8:1	11:1
2021	10:1	8:1	11:1
2020	21:1	8:1	12:1
2019	10:1	9:1	12:1
2018	10:1	9:1	12:1
2017	10:1	9:1	12:1
2016	10:1	9:1	12:1
2015	14:1	9:1	12:1

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% Average Faculty w/Advanced Degree

83%

67%

Percentage of Faculty With Advanced Degrees Trends (2017-2025)
Year	Millis, MA Average	Massachusetts (MA) Average	National Average
2025	83%	67%	55%
2024	83%	67%	54%
2023	83%	67%	54%
2022	83%	67%	54%
2021	83%	67%	54%
2020	90%	66%	54%
2019	90%	66%	53%
2018	90%	65%	53%
2017	90%	64%	53%

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Average Class Size

17 students

14 students

Class Size Trends (2017-2025)
Year	Millis, MA Average	Massachusetts (MA) Average	National Average
2025	17	14	15
2024	17	14	15
2023	17	14	15
2022	17	14	15
2021	17	14	15
2020	20	14	15
2019	20	14	15
2018	20	14	15
2017	20	14	15

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Tuition and Acceptance Rate:

Average Yearly Tuition Cost

$13,150

$26,391

Tuition Cost Trends (2021-2025)
Year	Millis, MA Average	Massachusetts (MA) Average	National Average
2025	$13,150	$26,485	$15,012
2024	$13,150	$27,159	$13,254
2023	$12,500	$25,129	$12,626
2022	$10,900	$24,457	$12,187
2021	$10,900	$22,623	$11,800

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Average % on Financial Aid

45%

36%

Percent on Financial Aid Trends (2021-2025)
Year	Millis, MA Average	Massachusetts (MA) Average	National Average
2025	45%	36%	34%
2024	35%	36%	34%
2023	35%	37%	34%
2022	35%	36%	33%
2021	35%	35%	33%

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Average Acceptance Rate

85%

71%

Acceptance Rate Trends (2017-2025)
Year	Millis, MA Average	Massachusetts (MA) Average	National Average
2025	85%	71%	81%
2024	85%	70%	85%
2023	85%	71%	85%
2022	85%	70%	85%
2021	85%	71%	85%
2020	90%	71%	85%
2019	90%	71%	85%
2018	90%	71%	85%
2017	90%	71%	85%

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Students by Ethnicity:

0.58

0.63

Diversity Score Trends
Year	Millis, MA Average	Massachusetts (MA) Average	National Average
2025	0.58	0.63	0.65
2024	0.58	0.63	0.65
2023	0.50	0.62	0.65
2022	0.50	0.60	0.64
2021	0.54	0.60	0.64
2020	0.54	0.59	0.64
2019	0.51	0.57	0.63
2018	0.51	0.58	0.63
2017	0.51	0.55	0.61
2016	0.51	0.55	0.61
2015	0.57	0.55	0.61

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# American Indian Students

n/a

187 Students

% American Indian Students

n/a

n/a

# Asian Students

7 Students

6,792 Students

% Asian Students

7%

6%

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

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# Hispanic Students

1 Student

7,583 Students

% Hispanic Students

1%

6%

Hispanic Student Percentage Trends
Year	Millis, MA Average	Massachusetts (MA) Average	National Average
2025	1%	6%	9%
2024	1%	6%	9%
2019	1%	5%	8%
2018	1%	5%	8%
2017	1%	4%	8%
2016	1%	4%	8%
2015	1%	5%	8%

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# Black Students

n/a

8,704 Students

% Black Students

n/a

7%

Black Student Percentage Trends
Year	Millis, MA Average	Massachusetts (MA) Average	National Average
2023	1%	7%	8%
2022	1%	6%	7%
2021	1%	6%	7%
2020	1%	6%	8%

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# White Students

49 Students

67,962 Students

% White Students

50%

54%

White Student Percentage Trends
Year	Millis, MA Average	Massachusetts (MA) Average	National Average
2025	50%	54%	52%
2024	50%	54%	52%
2023	29%	56%	52%
2022	29%	58%	54%
2021	34%	59%	54%
2020	34%	59%	54%
2019	32%	61%	56%
2018	32%	61%	56%
2017	32%	63%	58%
2016	32%	64%	58%
2015	41%	64%	58%

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# Hawaiian Students

n/a

83 Students

% Hawaiian Students

n/a

n/a

# Two or more races Students

n/a

n/a

% of Two or more races Students

n/a

n/a

# Others Students

41 Students

33,520 Students

% of Others Students

42%

27%

Other Races Student Percentage Trends
Year	Millis, MA Average	Massachusetts (MA) Average	National Average
2025	42%	27%	26%
2024	42%	27%	26%
2023	64%	25%	25%
2022	64%	24%	25%
2021	59%	24%	25%
2020	59%	23%	24%
2019	62%	22%	24%
2018	62%	23%	23%
2017	62%	21%	22%
2016	62%	21%	22%
2015	51%	19%	21%

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All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars

5 extracurriculars

13 extracurriculars

Average Number of Sports

4 sports

9 sports

Frequently Asked Questions

What are the top-ranked private schools in Millis, MA?

The private schools in Millis, MA is Woodside Montessori Academy.

How many private schools are located in Millis?

2 private schools are located in Millis.

What percentage of students in Millis go to private school?

14% of all K-12 students in Millis are educated in private schools (compared to the MA state average of 12%).

What percentage of private schools are religiously affiliated in Millis?

50% of private schools in Millis are religiously affiliated (most commonly Catholic).

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