Hillside School Photo - Hillside School is located on 150 acres of land that is 45 minutes from Boston and 20 minutes from Worcester.

Best Marlborough Private Schools (2026)

For the 2026 school year, there are 9 private schools serving 615 students in Marlborough, MA (there are 9 public schools, serving 6,825 public students). 8% of all K-12 students in Marlborough, MA are educated in private schools (compared to the MA state average of 12%).
The top-ranked private school in Marlborough, MA is Hillside School.
The average acceptance rate is 50%, which is lower than the Massachusetts private school average acceptance rate of 71%.

Top-Ranked Marlborough Private Schools (2026)

School
Location
Quick Facts
New England Innovation Academy
New England Innovation Academy Photo
Special Program Emphasis
280 Locke Drive
Marlborough, MA 01752
(508) 205-4270
Gr: 6-12 | 116 students Avg. class size: 12 students Sports: 8 | Extracurrculars: 17 Tuition & acceptance rate listed
Hillside School
Hillside School Photo - Soccer and lacrosse play on our new turf.
All-boys
404 Robin Hill Street
Marlborough, MA 01752
(508) 485-3483
Gr: 4-9 | 145 students Avg. class size: 12 students Sports: 14 | Extracurrculars: 8 Tuition listed
The Cottage Childrens Center
Daycare / Preschool
197 Union St
Marlborough, MA 01752
(508) 485-2054
Gr: PK-K | 90 students
Glenhaven Academy
Special Education School
56 Framingham Rd 58
Marlborough, MA 01752
(508) 745-9462
Gr: 6-12 | 35 students
Kiddie Time Educational Child Care
Kiddie Time Educational Child Care Photo - Hosmer Street KinderCare
Daycare / Preschool
81 Hosmer St.
Marlborough, MA 01752
(508) 573-1745
Gr: NS-PK
Marlborough KinderCare
Marlborough KinderCare Photo - Marlborough KinderCare
Daycare / Preschool
496 Boston Post Rd E
Marlborough, MA 01752
(508) 229-4415
Gr: NS-PK Tuition listed
Meadowbrook Child Garden
Meadowbrook Child Garden Photo - Our Goal is to provide consistent high quality education for children ages 2.9 to 6 years and to be a resource for parents, families and the community. The logo depicts four areas of growth Physical (circle), Intellectual (triangle), Social (square) and Emotional (rectangle).
Daycare / Preschool
(1)
1110 Concord Rd
Marlborough, MA 01752
(508) 485-1975
Gr: PK-K | 44 students Tuition listed
Next Generation Children's Centers
Next Generation Children's Centers Photo - Our Infant program provides a safe, nurturing and stimulating environment for the littlest ones in our care. This specially designed setting, along with our caring teachers, will work cooperatively with you to nurture your baby through all their early stages of development. We provide continuity of care between your home and our classrooms by partnering with parents and developing a strong understanding of each child’s individual needs. NGCC developed our own curriculum for infants called Baby Steps which will guide your child through each developmental stage, such as sitting up, crawling, walking, “talking”, as well as activities such as art projects, baby sign language, singing songs and opportunities for exploring their world. Doggie and Kitty are our program mascots that help teachers bring stories and learning to life!
Daycare / Preschool
201 Cedar Hill Street
Marlborough, MA 01752
(508) 480-9222
Gr: NS-K | 120 students Avg. class size: 20 students
Our Future Learning Center
Daycare / Preschool
515 Northboro Rd. W
Marlborough, MA 01752
(508) 460-1234
Gr: NS-PK | 65 students
[+] Show Closed Private Schools in Marlborough, Massachusetts

Marlborough, Massachusetts Private Schools (Closed)

School
Location
Quick Facts
19 Forest St
Marlborough, MA 01752
(866) 202-8593
Gr: NS-K
25 Washington Ct
Marlborough, MA 01752
(508) 460-3400
Gr: PK-8 | 156 students
St. Anne Montessori School (Closed 2013)
Montessori School (Catholic)
720 Boston Post Road East
Marlborough, MA 01752
(508) 597-1416
Gr: PK-K | 36 students Avg. class size: 36 students Tuition listed

Overview

This Town (Marlborough)
This State (MA)
# Schools
9 Schools

Student Body:

# Students
615 Students
127,049 Students
% Average Students of Color
21%
31%

Academics and Faculty:

# Teachers
31 Teachers
15,733 Teachers
Average Student-Teacher Ratio
11:1
8:1
% Average Faculty w/Advanced Degree
54%
67%
Average Class Size
15 students
14 students

Tuition and Acceptance Rate:

Average Yearly Tuition Cost
$48,500
$26,485
Average Summer Program Cost
$280
$2,893
Average % on Financial Aid
41%
36%
Average Financial Aid Grant
$25,000
$17,137
Average Acceptance Rate
50%
71%
Average Endowment Size
$5 million
$83.44 million

Students by Ethnicity:

0.62
0.63
# American Indian Students
n/a
187 Students
% American Indian Students
n/a
n/a
# Asian Students
17 Students
6,793 Students
% Asian Students
4%
5%
# Hispanic Students
14 Students
7,583 Students
% Hispanic Students
4%
6%
# Black Students
18 Students
8,704 Students
% Black Students
5%
7%
# White Students
152 Students
67,962 Students
% White Students
40%
55%
# Hawaiian Students
1 Student
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
177 Students
33,443 Students
% of Others Students
47%
27%
All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars
13 extracurriculars
13 extracurriculars
Average Number of Sports
11 sports
9 sports

Frequently Asked Questions

What are the top-ranked private schools in Marlborough, MA?
The top-ranked private schools in Marlborough, MA is Hillside School.
How many private schools are located in Marlborough?
9 private schools are located in Marlborough.
How diverse are private schools in Marlborough?
Marlborough private schools are approximately 21% minority students, which is lower than the Massachusetts private school average of 31%.
What percentage of students in Marlborough go to private school?
8% of all K-12 students in Marlborough are educated in private schools (compared to the MA state average of 12%).
Which private schools in Marlborough are often viewed compared to one another?

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