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Carroll School Photo - Educational technology integrated into in the daily curriculum
Carroll School

Best Massachusetts Nonsectarian Private Schools (2025-26)

For the 2025-26 school year, there are 477 nonsectarian private schools in Massachusetts. You can also find more religiously affiliated schools in Massachusetts.
The top ranked nonsectarian private schools in Massachusetts include Wilbraham & Monson Academy, Middlesex School, and Springfield Commonwealth Academy.

Top Ranked Nonsectarian Private Schools in Massachusetts (2025-26)

School
Location
Quick Facts
Bay Farm Montessori Academy
Bay Farm Montessori Academy Photo - Our Children`s House preschool/pre-k, kindergarten classrooms accommodate children in mixed-age classrooms that provide a safe, stimulating, nurturing, educational, and social foundation for future success.
Montessori School
(8)
145 Loring Street
Duxbury, MA 02332
(781) 934-7101
Gr: NS-6 | 168 students Avg. class size: 20 students Sports: 13 | Extracurrculars: 6 Tuition & acceptance rate listed
The Brighton School
The Brighton School Photo
Special Program Emphasis
(10)
360 Water Street
Framingham, MA 01705
(508) 877-8200
Gr: PK-6 | 65 students Avg. class size: 18 students Extracurrculars: 4 Tuition listed
Buxton School
Buxton School Photo - Mountain Day!
Special Program Emphasis
291 South Street
Williamstown, MA 01267
(413) 339-3727
Gr: 9-12 | 51 students Avg. class size: 9 students Sports: 9 | Extracurrculars: 12 Tuition & acceptance rate listed
Cambridge Montessori School
Cambridge Montessori School Photo
Montessori School
(6)
161 Garden St
Cambridge, MA 02138
(617) 492-3410
Gr: NS-8 | 152 students Avg. class size: 15 students Tuition & acceptance rate listed
The Cambridge School Of Weston
The Cambridge School Of Weston Photo - Our program, known as the Mod System, offers breadth, depth, and intensity you won't find at any other high school. Within its 6x6 framework (six terms of six weeks each), you'll choose from over 200 different classes, crafting a schedule that allows you to dig deep into current areas of interest while preparing you for the rigor of college study.
(2)
45 Georgian Road
Weston, MA 02493
(781) 642-8650
Gr: 9-12 | 320 students Avg. class size: 15 students Sports: 11 | Extracurrculars: 53 Tuition & acceptance rate listed
Commonwealth School
Commonwealth School Photo - Two blocks from Copley Square, nestled in a pair of brownstones in Boston's Back Bay, the feeling of family persists at Commonwealth, and its location gives students unparalleled access to Boston's resources, fostering meaningful scholarly research, independent projects, and community service.
(1)
151 Commonwealth Avenue
Boston, MA 02116
(617) 266-7525
Gr: 9-12 | 158 students Avg. class size: 12 students Sports: 9 | Extracurrculars: 33 Tuition listed
Dedham Country Day School
Dedham Country Day School Photo - Welcome to Dedham Country Day!
(1)
90 Sandy Valley Road
Dedham, MA 02026
(781) 329-0850
Gr: NS-8 | 309 students Avg. class size: 12 students Sports: 11 | Extracurrculars: 5 Tuition & acceptance rate listed
Delphi Academy of Boston
Delphi Academy of Boston Photo - Small class sizes, big thinkers & challenging environment. Caring faculty provide personal, one-on-one attention for every child. Over 40 years of educational experience and success.
(8)
564 Blue Hill Avenue
Milton, MA 02186
(617) 333-9610
Gr: PK-8 | 140 students Avg. class size: 12 students Sports: 3 | Extracurrculars: 4 Tuition & acceptance rate listed
Fay School
Fay School Photo - Fay School is located on a 66-acre campus 25 miles from Boston in Southborough, Massachusetts, and is the oldest junior boarding school in the United States. Fay currently serves students in Kindergarten through grade nine, with an optional boarding program starting in grade seven.
(9)
48 Main Street
Southborough, MA 01772
(508) 490-8201
Gr: K-9 Avg. class size: 14 students Sports: 16 | Extracurrculars: 14 Tuition listed
Fayerweather Street School
(2)
765 Concord Avenue
Cambridge, MA 02138
(617) 876-4746
Gr: PK-8 | 205 students Avg. class size: 20 students Sports: 3 | Extracurrculars: 12 Tuition & acceptance rate listed
Kingsley Montessori School
Kingsley Montessori School Photo - Elementary students exploring a geography work. A key component of the Kingsley mission is raising empathetic global citizens-students who care deeply for the world and work together to improve it.
Montessori School
(3)
26 Exeter Street
Boston, MA 02116
(617) 226-4927
Gr: NS-6 | 301 students Avg. class size: 17 students Sports: 14 Tuition listed
Middlesex School
Middlesex School Photo - Eliot Hall
1400 Lowell Road
Concord, MA 01742
(978) 371-6524
Gr: 9-12 | 427 students Avg. class size: 12 students Sports: 20 | Extracurrculars: 71 Tuition & acceptance rate listed
Milestones Day School
Milestones Day School Photo - Milestones Day School
Special Education School
410 Totten Pond Road
Waltham, MA 02451
(781) 895-3200
Gr: K-12 | 63 students Avg. class size: 5 students Extracurrculars: 4
Nashoba Brooks School
Nashoba Brooks School Photo
(10)
200 Strawberry Hill Road
Concord, MA 01742
(978) 369-4591
Gr: PK-8 | 268 students Avg. class size: 12 students Sports: 8 | Extracurrculars: 10 Tuition & acceptance rate listed
The Newman School
The Newman School Photo
(4)
247 Marlborough Street
Boston, MA 02116
(617) 267-4530
Gr: 7-12 | 258 students Avg. class size: 12 students Sports: 8 | Extracurrculars: 16 Tuition & acceptance rate listed
The Sage School
The Sage School Photo - Upper School Students explore collaboration and communication on our Morahan Low Elements Course.
Special Program Emphasis
(12)
171 Mechanic St
Foxboro, MA 02035
(508) 543-9619
Gr: NS-8 | 135 students Avg. class size: 12 students Extracurrculars: 7 Tuition & acceptance rate listed
Springfield Commonwealth Academy
Springfield Commonwealth Academy Photo - Field_Day_2024
(1)
1 Ames Hill Dr
Springfield, MA 01105
(413) 203-9801
Gr: 6-12 | 125 students Avg. class size: 12 students Sports: 13 | Extracurrculars: 3 Tuition & acceptance rate listed
Stoneleigh-Burnham School
Stoneleigh-Burnham School Photo
All-girls
(5)
574 Bernardston Road
Greenfield, MA 01301
(413) 774-2711
Gr: 7-12 | 140 students Avg. class size: 10 students Sports: 8 | Extracurrculars: 17 Tuition & acceptance rate listed
Tabor Academy
Tabor Academy Photo - Situated on the shores of Sippican Harbor, Tabor's 88-acre campus includes direct and immediate access to the water allowing for place-based learning like no other.
(7)
246 Front Street
Marion, MA 02738
(508) 291-8300
Gr: 9-12 | 508 students Avg. class size: 12 students Sports: 16 | Extracurrculars: 72 Tuition & acceptance rate listed
Wellan Montessori School
Wellan Montessori School Photo
Montessori School
(4)
80 Crescent Avenue
Newton Center, MA 02459
(617) 969-4488
Gr: PK-8 | 320 students Avg. class size: 20 students Sports: 5 | Extracurrculars: 3 Tuition & acceptance rate listed
Wilbraham & Monson Academy
Wilbraham & Monson Academy Photo
(4)
423 Main Street
Wilbraham, MA 01095
(413) 596-6811
Gr: 6-12 | 412 students Avg. class size: 12 students Sports: 23 | Extracurrculars: 36 Tuition & acceptance rate listed
Clark School
Clark School Photo - Clark School in Rowley, MA, is a private, co-ed day school for Preschool through Grade 12. We specialize in small class sizes and project-based learning, integrating technology and executive functioning skills into daily instruction. Our approach emphasizes social and emotional growth to support the development of the whole child. Discover more at clarkschool.com.
(14)
14 Forest Ridge Drive
Rowley, MA 01969
(978) 777-4699
Gr: NS-12 | 188 students Avg. class size: 15 students Sports: 16 | Extracurrculars: 37 Tuition & acceptance rate listed
Fusion Academy Burlington
Fusion Academy Burlington Photo - Each Fusion campus has a state-of-the-art music studio with professional-grade tools. Students can explore instruments, vocals, songwriting, DJ performing arts, and more.
100 Summit Drive, Suite 200
Burlington, MA 01803
(877) 673-8893
Gr: 6-12 Tuition listed
Fusion Academy Newton
Fusion Academy Newton Photo - Each Fusion campus has a state-of-the-art music studio with professional-grade tools. Students can explore instruments, vocals, songwriting, DJ performing arts, and more.
320 Needham Street, Suite 100
Newton Upper Falls, MA 02464
(877) 673-8893
Gr: 6-12 Tuition listed
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
The Academy At Charlemont
The Academy At Charlemont Photo - Welcome to The Academy at Charlemont
1359 Route 2 E
Charlemont, MA 01339
(413) 339-4912
Gr: 7-12 | 81 students Avg. class size: 16 students Sports: 9 | Extracurrculars: 25 Tuition & acceptance rate listed
Apple Orchard School
Apple Orchard School Photo - Based on Allandale Farm, Apple Orchard students spend much of their time outside: running in fields, feeding the chickens, caring for our barn animals, walking our goats, climbing pudding stone, building tree forts, sledding, stomping in puddles and playing in the mud.
Daycare / Preschool
(1)
282 D Newton St
Brookline, MA 02445
(617) 731-6463
Gr: PK-K | 93 students Avg. class size: 13 students Acceptance rate listed
Applewild School
Applewild School Photo
(5)
120 Prospect St
Fitchburg, MA 01420
(978) 342-6053
Gr: PK-9 | 345 students Avg. class size: 12 students Sports: 6 | Extracurrculars: 7 Tuition & acceptance rate listed
Bancroft School
Bancroft School Photo
(4)
110 Shore Dr
Worcester, MA 01605
(508) 854-9227
Gr: PK-12 Avg. class size: 12 students Sports: 12 | Extracurrculars: 2 Tuition & acceptance rate listed
Beaver Country Day School
Beaver Country Day School Photo
(1)
791 Hammond St
Chestnut Hill, MA 02467
(617) 738-2725
Gr: 6-12 | 490 students Avg. class size: 16 students Sports: 17 Tuition & acceptance rate listed
Belmont Day School
Belmont Day School Photo - Welcome to Belmont Day!
(3)
55 Day School Lane
Belmont, MA 02478
(617) 484-3078
Gr: PK-8 | 338 students Sports: 13
Belmont Hill School
Belmont Hill School Photo - Belmont Hill School campus located in Belmont, MA.
All-boys
350 Prospect Street
Belmont, MA 02478
(617) 993-5220
Gr: 7-12 | 471 students Avg. class size: 11 students Sports: 16 Tuition & acceptance rate listed
The Bement School
The Bement School Photo
(12)
94 Old Main St
Deerfield, MA 01342
(413) 774-7061
Gr: K-9 | 226 students Avg. class size: 12 students Sports: 17 | Extracurrculars: 15 Tuition & acceptance rate listed
Berkshire Meadows
Special Education School
249 N Plain Rd
Housatonic, MA 01236
(413) 528-2523
Gr: Inquire with school | 21 students Avg. class size: 15 students Tuition & acceptance rate listed
Berkshire School
Berkshire School Photo - Founded in 1907, Berkshire School is a coed college preparatory boarding and day school for 400 ninth-12th graders and post-graduates, offering a forward-thinking curriculum and state-of-the-art facilities on a 400-acre campus in Sheffield, Mass.
(1)
245 North Undermountain Road
Sheffield, MA 01257
(413) 229-1003
Gr: 9-12 | 409 students Avg. class size: 12 students Sports: 20 | Extracurrculars: 2 Tuition & acceptance rate listed
Show 100 more private schools in Massachusetts (out of 477 total schools)
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