Sparhawk Academy Photo - A Sparhawk boy ventures forth onto a frozen brook on campus. Direct engagement with creation is a cornerstone of our curriculum.

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 top-ranked 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).

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
(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)
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
210 Pleasant St
Millis, MA 02054
(508) 376-8425
Gr: K | 21 students

Overview

This Town (Millis)
This State (MA)
# Schools
2 Schools

Student Body:

# Students
193 Students
127,030 Students
% Average Students of Color
14%
31%

Academics and Faculty:

# Teachers
23 Teachers
15,736 Teachers
Average Student-Teacher Ratio
8:1
8:1
% Average Faculty w/Advanced Degree
83%
67%
Average Class Size
17 students
14 students

Tuition and Acceptance Rate:

Average Yearly Tuition Cost
$13,150
$26,482
Average % on Financial Aid
45%
36%
Average Acceptance Rate
85%
71%

Students by Ethnicity:

0.58
0.63
# 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%
# Hispanic Students
1 Student
7,583 Students
% Hispanic Students
1%
6%
# Black Students
n/a
8,704 Students
% Black Students
n/a
7%
# White Students
49 Students
67,962 Students
% White Students
50%
55%
# 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
33,424 Students
% of Others Students
42%
27%
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 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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