St. Mark's School Photo - St. Mark's School

Best Massachusetts Private High Schools Belonging to Association of Independent Schools in New England (AISNE) (2025-26)

For the 2025-26 school year, there are 63 private high schools belonging to Association of Independent Schools in New England (AISNE) serving 23,870 students in Massachusetts. You can also find more schools membership associations in Massachusetts.
The top ranked private high schools belonging to Association of Independent Schools in New England (AISNE) in Massachusetts include Middlesex School, Concord Academy, and Tabor Academy.
The average tuition cost is $51,391, which is higher than the Massachusetts private high school average tuition cost of $40,749.
19% of private high schools belonging to Association of Independent Schools in New England (AISNE) in Massachusetts are religiously affiliated (most commonly Catholic and Christian).

Top Ranked Private High Schools Belonging to Association of Independent Schools in New England (AISNE) in Massachusetts (2025-26)

School
Location
Quick Facts
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
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
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
Miss Hall's School
Miss Hall's School Photo - The MHS graduate is a thinker, a creator and a contributor to the common good. She is a global citizen, a self-aware, resilient, and courageous participant in a multicultural society. Empowered by skills and knowledge, the MHS graduate is able to solve problems with intellect and creativity while embracing a spirit of exploration and curiosity.
All-girls | Special Program Emphasis
(11)
492 Holmes Road
Pittsfield, MA 01201
(413) 499-1300
Gr: 9-12 | 200 students Avg. class size: 12 students Sports: 13 | Extracurrculars: 44 Tuition 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
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
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
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
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
Austin Preparatory School
Austin Preparatory School Photo
(Catholic)
(6)
101 Willow St.
Reading, MA 01867
(781) 944-4900
Gr: 6-12 | 813 students Avg. class size: 16 students Sports: 20 | Extracurrculars: 22 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 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
Boston Trinity Academy
Boston Trinity Academy Photo
(Christian)
(4)
17 Hale St
Hyde Park, MA 02136
(617) 364-3700
Gr: 6-12 | 265 students Avg. class size: 15 students Sports: 9 | Extracurrculars: 19 Tuition listed
Brimmer and May School
Brimmer and May School Photo - The Hastings Center opens limitless possibilities for our students with our Innovation Space, Makerspace, STEAM classroom, and Digital Media Center.
(4)
69 Middlesex Road
Chestnut Hill, MA 02467
(617) 566-7462
Gr: PK-12 | 404 students Avg. class size: 12 students Sports: 10 | Extracurrculars: 23 Tuition listed
British International School Of Boston
British International School Of Boston Photo
Alternative School
(8)
416 Pond Street
Jamaica Plain, MA 02130
(617) 522-2261
Gr: PK-12 | 522 students Avg. class size: 15 students Sports: 7 | Extracurrculars: 12 Tuition listed
Brooks School
Brooks School Photo
(Episcopal)
1160 Great Pond Road
North Andover, MA 01845
(978) 725-6255
Gr: 9-12 | 351 students Avg. class size: 12 students Sports: 16 | Extracurrculars: 28 Tuition & acceptance rate listed
80 Gerry's Landing Rd
Cambridge, MA 02138
(617) 547-6100
Gr: PK-12 | 1,043 student Avg. class size: 15 students Sports: 19 | Extracurrculars: 68 Tuition listed
Cape Cod Academy
Cape Cod Academy Photo - Science Center's Foucault Pendulum at Cape Cod Academy
(3)
50 Osterville West Barnstable Road
Osterville, MA 02655
(508) 428-5400
Gr: K-12 | 276 students Avg. class size: 13 students Sports: 10 | Extracurrculars: 21 Tuition & acceptance rate listed
Carroll School
Carroll School Photo - Educational technology integrated into in the daily curriculum
Special Education School
(2)
25 Baker Bridge Road
Lincoln, MA 01773
(781) 259-8342
Gr: 1-9 | 447 students Avg. class size: 7 students Sports: 9 | Extracurrculars: 8 Tuition & acceptance rate listed
785 Beaver Street
Waltham, MA 02452
(781) 314-0804
Gr: 7-12 | 200 students Avg. class size: 10 students Sports: 11 | Extracurrculars: 26 Tuition & acceptance rate listed
Concord Academy
Concord Academy Photo
166 Main Street
Concord, MA 01742
(978) 402-2250
Gr: 9-12 | 416 students Avg. class size: 12 students Sports: 17 | Extracurrculars: 115 Tuition & acceptance rate listed
Covenant Christian Academy
Covenant Christian Academy Photo - Overhead view of campus
(Christian)
(7)
83 Pine Street
Peabody, MA 01960
(978) 535-7100
Gr: PK-12 | 432 students Avg. class size: 16 students Sports: 11 | Extracurrculars: 17 Tuition listed
Cushing Academy
39 School Street
Ashburnham, MA 01430
(978) 827-7000
Gr: 9-12 | 400 students Avg. class size: 12 students Sports: 19 Tuition listed
Dana Hall School
Dana Hall School Photo
All-girls
(1)
45 Dana Road
Wellesley, MA 02482
(781) 489-1331
Gr: 5-12 | 456 students Avg. class size: 12 students Sports: 16 | Extracurrculars: 36 Tuition & acceptance rate listed
Deerfield Academy
Deerfield Academy Photo
7 Boyden Lane
Deerfield, MA 01342
(413) 774-1400
Gr: 9-12 | 651 students Avg. class size: 12 students Sports: 23 | Extracurrculars: 44 Tuition & acceptance rate listed
Dexter Southfield School
Dexter Southfield School Photo
(1)
20 Newton St
Brookline, MA 02445
(617) 522-5544
Gr: NS-12 | 1,027 student Avg. class size: 15 students Sports: 19 | Extracurrculars: 37 Tuition listed
Eaglebrook School
All-boys
(1)
271 Pine Nook Road
Deerfield, MA 01342
(413) 774-7411
Gr: 6-9 | 250 students Avg. class size: 10 students Sports: 14 | Extracurrculars: 14 Tuition & acceptance rate listed
The Fenn School
The Fenn School Photo
All-boys
(9)
516 Monument Street
Concord, MA 01742
(978) 318-3606
Gr: 4-9 | 315 students Avg. class size: 14 students Sports: 13 | Extracurrculars: 17 Tuition & acceptance rate listed
The Fessenden School
The Fessenden School Photo
All-boys
250 Waltham Street
West Newton, MA 02465
(617) 630-2300
Gr: PK-9 | 541 students Avg. class size: 12 students Sports: 18 | Extracurrculars: 15 Tuition listed
Fontbonne
Fontbonne Photo
All-girls (Catholic)
930 Brook Road
Milton, MA 02186
(617) 615-3014
Gr: 7-12 | 325 students Avg. class size: 12 students Sports: 12 | Extracurrculars: 31 Tuition listed
Show 28 more private schools in Massachusetts (out of 63 total schools)
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