Private School Review - Established 2003
Sparhawk Academy
Woodside Montessori Academy

Millis Private Schools (2026)

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

Quick Facts (2026)

Quick Facts (2026)

Top Ranked Millis Private Schools (2026)

Woodside Montessori Academy Photo
Woodside Montessori Academy
Gr: PK-8 | 98 students
Avg. class size: 20 students
Extracurriculars: 6
Montessori School
350 Village St
Millis, MA 02054
(508) 376-5320
(2)
View Profile
Sparhawk Academy Photo
Sparhawk Academy
Gr: 3-10 | 95 students
Avg. class size: 13 students
Sports: 4 | Extracurriculars: 4
All-boys (Catholic)
376 ORCHARD ST
Millis, MA 02054
(617) 727-4295
View Profile
[+] Show Closed Private Schools in Millis, Massachusetts

Millis, Massachusetts Private Schools (Closed)

Map of Millis Country Day School
Millis Country Day School
Gr: K | 21 students
Daycare / Preschool
210 Pleasant St
Millis, MA 02054
(508) 376-8425
View Profile

Millis, MA Private School Trends (10-Year)

2
Private Schools
193
Students
+135.4% (+111 students) 10-yr
$13,150
Avg. Tuition
+20.6% (+$2,250) 4-yr
17
Avg. Class Size
-15.0% (-3 students) 8-yr
14%
Students of Color
-75.4% (-43.0 pp) 10-yr
8:1
Student-Teacher Ratio
-42.9% (-6.0) 10-yr
Download town snapshot: CSV | XML | JSON Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission.
Enrollment & Diversity
Category
This Town (Millis)
This State (MA)
# Schools
2 Schools
852 Schools
# Students
193 Students
126,402 Students

Trends in the Average Number of Students Per Private School

YearMillis, MA AvgMassachusetts (MA)National
202597159179
202497156172
2023100159174
202294162185
202163159180
202053155171
201954157175
201854157172
201754160180
201654159178
201541152167
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% Students of Color
14%
31%

Percentage of Students of Color Trends (2015-2025)

YearMillis, MA AvgMassachusetts (MA)National
202514%31%34%
202414%29%34%
202319%30%33%
202216%29%33%
202115%28%32%
202019%27%32%
201918%26%31%
201818%25%31%
201725%26%32%
201625%27%32%
201557%28%32%
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0.58
0.63

Diversity Score Trends

YearMillis, MA AvgMassachusetts (MA)National
20250.580.630.65
20240.580.630.65
20230.500.620.65
20220.500.600.64
20210.540.600.64
20200.540.590.64
20190.510.570.63
20180.510.580.63
20170.510.550.61
20160.510.550.61
20150.570.550.61
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▼ Show more data/charts: racial breakdown
# American Indian Students
n/a
187 Students
% American Indian Students
n/a
n/a
# Asian Students
7 Students
6,792 Students
% Asian Students
7%
5%

Asian Student Percentage Trends

YearMillis, MA AvgMassachusetts (MA)National
20257%6%5%
20247%6%5%
20236%6%5%
20226%7%4%
20216%6%4%
20206%7%4%
20195%6%4%
20185%5%4%
20175%6%4%
20165%5%4%
20157%5%4%
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# Hispanic Students
1 Student
7,577 Students
% Hispanic Students
1%
6%

Hispanic Student Percentage Trends

YearMillis, MA AvgMassachusetts (MA)National
20251%6%9%
20241%6%9%
20191%5%8%
20181%5%8%
20171%4%8%
20161%4%8%
20151%5%8%
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# Black Students
n/a
8,696 Students
% Black Students
n/a
7%

Black Student Percentage Trends

YearMillis, MA AvgMassachusetts (MA)National
20231%7%8%
20221%6%7%
20211%6%7%
20201%6%8%
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# White Students
49 Students
67,960 Students
% White Students
50%
55%

White Student Percentage Trends

YearMillis, MA AvgMassachusetts (MA)National
202550%54%52%
202450%54%52%
202329%56%52%
202229%58%54%
202134%59%54%
202034%59%54%
201932%61%56%
201832%61%56%
201732%63%58%
201632%64%58%
201541%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
33,225 Students
% of Others Students
42%
27%

Other Races Student Percentage Trends

YearMillis, MA AvgMassachusetts (MA)National
202542%27%26%
202442%27%26%
202364%25%25%
202264%24%25%
202159%24%25%
202059%23%24%
201962%22%24%
201862%23%23%
201762%21%22%
201662%21%22%
201551%19%21%
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All Ethnic Groups
Academics
# Teachers
23 Teachers
15,704 Teachers
Average Student-Teacher Ratio
8:1
8:1

Student-Teacher Ratio Trends (2015-2025)

YearMillis, MA AvgMassachusetts (MA)National
20258:18:111:1
20248:18:111:1
20237:18:111:1
20226:18:111:1
202110:18:111:1
202021:18:112:1
201910:19:112:1
201810:19:112:1
201710:19:112:1
201610:19:112:1
201514:19:112:1
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% Average Faculty w/Advanced Degree
83%
67%

Percentage of Faculty With Advanced Degrees Trends (2017-2025)

YearMillis, MA AvgMassachusetts (MA)National
202583%67%55%
202483%67%54%
202383%67%54%
202283%67%54%
202183%67%54%
202090%66%54%
201990%66%53%
201890%65%53%
201790%64%53%
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Average Class Size
17 students
14 students

Class Size Trends (2017-2025)

YearMillis, MA AvgMassachusetts (MA)National
2025171415
2024171415
2023171415
2022171415
2021171415
2020201415
2019201415
2018201415
2017201415
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Tuition & Aid
Average Yearly Tuition Cost
$13,150
$26,745

Tuition Cost Trends (2021-2025)

YearMillis, MA AvgMassachusetts (MA)National
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)

YearMillis, MA AvgMassachusetts (MA)National
202545%36%34%
202435%36%34%
202335%37%34%
202235%36%33%
202135%35%33%
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Admissions & Athletics
Average Acceptance Rate
85%
71%

Acceptance Rate Trends (2017-2025)

YearMillis, MA AvgMassachusetts (MA)National
202585%71%81%
202485%70%85%
202385%71%85%
202285%70%85%
202185%71%85%
202090%71%85%
201990%71%85%
201890%71%85%
201790%71%85%
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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 top ranked 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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