For the 2025-26 school year, there are 3 private high schools serving 296 students in Marlborough, MA.
The top-ranked private high school in Marlborough, MA is Hillside School.
The average acceptance rate is 50%, which is lower than the Massachusetts private high school average acceptance rate of 62%.
Top-Ranked Marlborough Private High Schools (2025-26)
School
Location
Quick Facts
New England Innovation Academy![New England Innovation Academy Photo]( "New England Innovation Academy Photo")
Special Program Emphasis
280 Locke Drive
Marlborough, MA 01752
(508) 205-4270
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.]( "Hillside School Photo - Soccer and lacrosse play on our new turf.")
All-boys
404 Robin Hill Street
Marlborough, MA 01752
(508) 485-3483
Marlborough, MA 01752
(508) 485-3483
Gr: 4-9 | 145 students Avg. class size: 12 students Sports: 14 | Extracurrculars: 8 Tuition listed
Glenhaven Academy
Special Education School
56 Framingham Rd 58
Marlborough, MA 01752
(508) 745-9462
Marlborough, MA 01752
(508) 745-9462
Gr: 6-12 | 35 students
Marlborough, Massachusetts Private Schools (Closed)
School
Location
Quick Facts
Guidepost Montessori at Marlborough (Closed 2025)
Montessori School
19 Forest St
Marlborough, MA 01752
(866) 202-8593
Marlborough, MA 01752
(866) 202-8593
Gr: NS-K
25 Washington Ct
Marlborough, MA 01752
(508) 460-3400
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
Marlborough, MA 01752
(508) 597-1416
Gr: PK-K | 36 students Avg. class size: 36 students Tuition listed
Frequently Asked Questions
What are the top-ranked private high schools in Marlborough, MA?
The top-ranked private high schools in Marlborough, MA is Hillside School.
How many private high schools are located in Marlborough?
3 private high schools are located in Marlborough.
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