The average private school endowment in Massachusetts is $105.9M (2025).
The private school in Massachusetts with the highest endowment is Phillips Academy Andover, with a endowment of $1326M.
Endowment Range: $14M
$1326M
Avg. Endowment: $145.2M
Average Private School endowment in Massachusetts (2025)
School
Endowment
Grades
Location
Rank: #11.
Endowment: $1326 M
Grades: 9-12
180 Main Street
Andover, MA 01810
(978) 749-4050
Andover, MA 01810
(978) 749-4050
Rank: #22.
Endowment: $800 M
Grades: 9-12
7 Boyden Lane
Deerfield, MA 01342
(413) 774-1400
Deerfield, MA 01342
(413) 774-1400
Rank: #33.
Groton School![Groton School Photo - Groton Circle Groton School Photo - Groton Circle]()

(Episcopal)
Endowment: $477 M
Grades: 8-12
282 Farmers Row
Groton, MA 01450
(978) 448-3363
Groton, MA 01450
(978) 448-3363
Rank: #44.
Endowment: $408 M
Grades: K-12
170 Centre Street
Milton, MA 02186
(617) 898-1798
Milton, MA 02186
(617) 898-1798
Rank: #55.
Endowment: $302 M
Grades: 9-12
1400 Lowell Road
Concord, MA 01742
(978) 371-6524
Concord, MA 01742
(978) 371-6524
Rank: #66.
Endowment: $195 M
Grades: 9-12
245 North Undermountain Road
Sheffield, MA 01257
(413) 229-1003
Sheffield, MA 01257
(413) 229-1003
Rank: #77.
Endowment: $185 M
Grades: 9-12
One Lamplighter Way
Gill, MA 01354
(413) 498-3227
Gill, MA 01354
(413) 498-3227
Rank: #88.
Endowment: $150 M
Grades: 9-12
25 Marlboro Road
Southborough, MA 01772
(508) 786-6000
Southborough, MA 01772
(508) 786-6000
Rank: #99.
Endowment: $101 M
Grades: 6-9
271 Pine Nook Road
Deerfield, MA 01342
(413) 774-7411
Deerfield, MA 01342
(413) 774-7411
Rank: #1010.
Endowment: $95 M
Grades: 9-12
166 Main Street
Concord, MA 01742
(978) 402-2250
Concord, MA 01742
(978) 402-2250
Rank: #1111.
Endowment: $94 M
Grades: 5-12
45 Dana Road
Wellesley, MA 02482
(781) 489-1331
Wellesley, MA 02482
(781) 489-1331
Rank: #1212.
Brooks School![Brooks School Photo Brooks School Photo]()

(Episcopal)
Endowment: $79 M
Grades: 9-12
1160 Great Pond Road
North Andover, MA 01845
(978) 725-6255
North Andover, MA 01845
(978) 725-6255
Rank: #13 - 1413. - 14.
Boston College High School![Boston College High School Photo - The labyrinth in our main common area provides a metaphor for the reflective journey you take through life, as well as the internal discovery of yourself. Boston College High School Photo - The labyrinth in our main common area provides a metaphor for the reflective journey you take through life, as well as the internal discovery of yourself.]()

All-boys (Catholic)
Endowment: $70 M
Grades: 7-8
150 William T Morrissey Blvd
Dorchester, MA 02125
(617) 474-5112
Dorchester, MA 02125
(617) 474-5112
Rank: #13 - 1413. - 14.
Endowment: $70 M
Grades: 9-12
1 Elm St
Byfield, MA 01922
(978) 465-1763
Byfield, MA 01922
(978) 465-1763
Rank: #1515.
Endowment: $67 M
Grades: K-9
48 Main Street
Southborough, MA 01772
(508) 490-8201
Southborough, MA 01772
(508) 490-8201
Rank: #1616.
The Fessenden School![The Fessenden School Photo The Fessenden School Photo]()

All-boys
Endowment: $65 M
Grades: PK-9
250 Waltham Street
West Newton, MA 02465
(617) 630-2300
West Newton, MA 02465
(617) 630-2300
Rank: #1717.
Endowment: $63 M
Grades: 9-12
66 Spring Street
Marion, MA 02738
(508) 291-8300
Marion, MA 02738
(508) 291-8300
Rank: #1818.
Endowment: $60 M
Grades: 6-12
81 Providence Street
Worcester, MA 01604
(508) 754-5302
Worcester, MA 01604
(508) 754-5302
Rank: #1919.
Endowment: $54 M
Grades: PK-8
178 Coolidge Hill
Cambridge, MA 02138
(617) 520-5200
Cambridge, MA 02138
(617) 520-5200
Rank: #2020.
Endowment: $51 M
Grades: PK-8
171 Goddard Avenue
Brookline, MA 02445
(617) 277-2456
Brookline, MA 02445
(617) 277-2456
Rank: #2121.
Newton Country Day School![Newton Country Day School Photo - Newton Country Day School's lovely suburban campus includes classroom space, state-of-the-art science labs, a library, a theatre, a new athletic and wellness center, and playing fields. Newton Country Day School Photo - Newton Country Day School's lovely suburban campus includes classroom space, state-of-the-art science labs, a library, a theatre, a new athletic and wellness center, and playing fields.]()

All-girls | Special Program Emphasis (Catholic)
Endowment: $51 M
Grades: 5-12
785 Centre St
Newton, MA 02458
(617) 244-4246
Newton, MA 02458
(617) 244-4246
Rank: #2222.
Endowment: $39 M
Grades: 9-12
26 Powderhouse Rd
Groton, MA 01450
(978) 448-1530
Groton, MA 01450
(978) 448-1530
Rank: #2323.
Endowment: $37 M
Grades: 6-12
333 Winter St
Weston, MA 02493
(781) 235-9300
Weston, MA 02493
(781) 235-9300
Rank: #2424.
Endowment: $33 M
Grades: 1-9
25 Baker Bridge Road
Lincoln, MA 01773
(781) 259-8342
Lincoln, MA 01773
(781) 259-8342
Rank: #2525.
Endowment: $30 M
Grades: 9-12
172 Ash Street
Winchendon, MA 01475
(978) 297-1223
Winchendon, MA 01475
(978) 297-1223
Rank: #2626.
Endowment: $26 M
Grades: 9-12
492 Holmes Road
Pittsfield, MA 01201
(413) 499-1300
Pittsfield, MA 01201
(413) 499-1300
Rank: #2727.
Schechter Boston![Schechter Boston Photo Schechter Boston Photo]()

(Jewish)
Endowment: $24 M
Grades: NS-8
60 Stein Circle
Newton Center, MA 02459
(617) 928-9100
Newton Center, MA 02459
(617) 928-9100
Rank: #2828.
Endowment: $22 M
Grades: 9-12
151 Commonwealth Avenue
Boston, MA 02116
(617) 266-7525
Boston, MA 02116
(617) 266-7525
Rank: #2929.
Endowment: $20 M
Grades: PK-6
78 Benvenue Street
Wellesley, MA 02482
(781) 235-2282
Wellesley, MA 02482
(781) 235-2282
Rank: #3030.
Endowment: $17 M
Grades: PK-8
55 Day School Lane
Belmont, MA 02478
(617) 484-3078
Belmont, MA 02478
(617) 484-3078
Rank: #3131.
Endowment: $16 M
Grades: 9-12
12 Highland Street
Natick, MA 01760
(508) 650-5085
Natick, MA 01760
(508) 650-5085
Rank: #32 - 3332. - 33.
Endowment: $15 M
Grades: 2-8
167 Bridge Street
Manchester, MA 01944
(978) 236-3000
Manchester, MA 01944
(978) 236-3000
Rank: #32 - 3332. - 33.
Endowment: $15 M
Grades: 2-12
429 Hale St
Prides Crossing, MA 01965
(978) 236-3266
Prides Crossing, MA 01965
(978) 236-3266
Rank: #3434.
Endowment: $14 M
Grades: 9-12
45 Georgian Road
Weston, MA 02493
(781) 642-8650
Weston, MA 02493
(781) 642-8650
Rank: #3535.
Riverview School Inc![Riverview School Inc Photo - Our summer program ends with a cruise along the Cape Cod Canal for some students. Riverview School Inc Photo - Our summer program ends with a cruise along the Cape Cod Canal for some students.]()

Special Education School
Endowment: $14 M
Grades: 6-12
551 Route 6A
East Sandwich, MA 02537
(508) 888-0489
East Sandwich, MA 02537
(508) 888-0489
Show 14 more private schools in MA (out of 49 total schools)
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Frequently Asked Questions
What is the Massachusetts average private schools endowment?
The Massachusetts average private schools endowment is $105.9M for 2025.
What are the private schools with the highest endowment in Massachusetts?
The top ranked private schools in Massachusetts include Phillips Academy Andover, Deerfield Academy and Groton School.
What is private high school and private elementary school with the highest endowment in Massachusetts?
The private high school with the highest endowment in Massachusetts is Phillips Academy Andover, with a value of $1326.0M. The private elementary school with the highest endowment is Groton School, with a value of $477.0M.
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