Berkshire School Photo - Founded in 1907, Berkshire School is a coed college preparatory boarding and day school for 425 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.

Largest Endowments

Among "Schools with 200-400 Students", view the boarding schools with the largest endowments (2024-25).
Boarding schools that have larger students bodies or older histories are more likely to have larger endowments than other schools (since they have had more alumni over the years to donate funds).
Schools with lower endowments still often have excellent facilities and resources for students, but simply have not yet had the time or alumni base to build up endowments equivalent to older, larger schools.
Endowment per student is another metric for comparing endowments between schools of different size.
Smaller schools can often have a larger endowment per student figure than larger schools.
Endowment Range: $1M $450M Avg. Endowment: $53M

Largest Endowments

Among Schools with 200-400 Students (out of 72 schools)

Sorted by range (alphabetically within range)
Boarding School
Endowment
Grades
Location
Rank: #11
Woodberry Forest School
Woodberry Forest School Photo
All-Boys
(2)
Endowment: $450 M
Grades: 9-12
241 Woodberry Station
Woodberry Forest, VA 22989
(888) 798-9371
Rank: #22
St. Andrew's School, DE
St. Andrew's School, DE Photo - St. Andrew's seminar style discussions, which include faculty and students seated at a central round table, are heard throughout English, history and language classes.
(Episcopal)
(13)
Endowment: $230 M
Grades: 9-12
350 Noxontown Road
Middletown, DE 19709
(302) 285-4231
Rank: #33
St. George's School
St. George's School Photo - Seaside Campus overlooking the Atlantic Ocean
(Episcopal)
Endowment: $220 M
Grades: 9-12
372 Purgatory Rd
Middletown, RI 02842
(401) 842-6600
Rank: #44
The Thacher School
The Thacher School Photo - In courses designed for intellectual and creative expansion, students and teachers meet in seminar circles, studios, and laboratories to create a learning environment that is vigorous and supportive, galvanizing and nurturing.
(26)
Endowment: $206 M
Grades: 9-12
5025 Thacher Road
Ojai, CA 93023
(805) 640-3210
Rank: #55
Berkshire School
Berkshire School Photo - Founded in 1907, Berkshire School is a coed college preparatory boarding and day school for 425 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.
(17)
Endowment: $195 M
Grades: 9-12, PG
245 North Undermountain Road
Sheffield, MA 01257
(413) 229-1003
Rank: #66
Emma Willard School
Emma Willard School Photo
All-Girls
(9)
Endowment: $179 M
Grades: 9-12, PG
285 Pawling Avenue
Troy, NY 12180
(518) 833-1320
Rank: #77
St. Mark's School
St. Mark's School Photo - St. Mark's School
(Episcopal)
(7)
Endowment: $150 M
Grades: 9-12
25 Marlboro Road
Southborough, MA 01772
(508) 786-6118
Rank: #88
Miss Porter's School
Miss Porter's School Photo
All-Girls
(5)
Endowment: $128 M
Grades: 9-12
60 Main Street
Farmington, CT 06032
(860) 409-3530
Rank: #99
Westtown School
Westtown School Photo - Main building
(Society of Friends)
(44)
Endowment: $110 M
Grades: 9-12  | PK-12 (day)
975 Westtown Rd
West Chester, PA 19382
(610) 399-7900
Rank: #1010
Brooks School
Brooks School Photo - Come visit our beautiful 251 acre campus located on the shores of Lake Cochichewick.
(Episcopal)
(10)
Endowment: $101 M
Grades: 9-12
1160 Great Pond Road
North Andover, MA 01845
(978) 725-6272
Rank: #1111
Cate School
Cate School Photo - Day Walk
(19)
Endowment: $90 M
Grades: 9-12
1960 Cate Mesa Road, P.O. Box 5005
Carpinteria, CA 93013
(805) 684-4127
Rank: #1212
Salisbury School
Salisbury School Photo
All-Boys
(2)
Endowment: $88 M
Grades: 9-12, PG
251 Canaan Road
Salisbury, CT 06068
(860) 435-5732
Rank: #1313
The Madeira School
The Madeira School Photo - Madeira's 376-acre campus in McLean, Virginia, overlooks the Potomac River from a perch just 12 miles northwest of Washington, D.C.
All-Girls
(2)
Endowment: $80 M
Grades: 9-12
8328 Georgetown Pike
McLean, VA 22102
(703) 556-8273
Rank: #1414
Pomfret School
Pomfret School Photo
(8)
Endowment: $72 M
Grades: 9-12, PG
PO Box 128, 398 Pomfret Street
Pomfret, CT 06258
(860) 963-6120
Rank: #1515
Cushing Academy
Cushing Academy Photo - Main Building
(3)
Endowment: $70 M
Grades: 9-12, PG
39 School Street
Ashburnham, MA 01430
(978) 827-7300
Rank: #1616
Asheville School
Asheville School Photo - Asheville School is for those who dare to be extraordinary. It is a privilege to learn and live at Asheville School, a small and special enclave among ancient mountains.
(4)
Endowment: $69 M
Grades: 9-12
360 Asheville School Rd.
Asheville, NC 28806
(828) 254-6345
Rank: #1717
Kimball Union Academy
Kimball Union Academy Photo
(6)
Endowment: $68 M
Grades: 9-12, PG
7 Campus Center Drive
Meriden, NH 03770
(603) 469-2100
Rank: #18-1918.-19
Holderness School
Holderness School Photo - In the Holderness classroom, each student is literally in the front row, with an average class size of 12. We offer AP courses spanning multiple disciplines and encourage students to pursue an intellectual passion of their own in their twelfth-grade year as part of the Senior Thesis program.
(Episcopal)
(9)
Endowment: $60 M
Grades: 9-12, PG
PO Box 1879
Plymouth, NH 03264
(603) 536-1747
Rank: #18-1918.-19
Endowment: $60 M
Grades: 9-12, PG  | 7-12, PG (day)
19 Payson Avenue
Easthampton, MA 01027
(413) 529-3241
Rank: #2020
Santa Catalina School
Santa Catalina School Photo - Come visit our beautiful campus in Monterey, California! Call the admission office at 831.655.9356 or email admission@santacatalina.org to schedule your visit.
All-Girls (Catholic)
(1)
Endowment: $56 M
Grades: 9-12
1500 Mark Thomas Drive
Monterey, CA 93940
(831) 655-9356
Rank: #21-2221.-22
Missouri Military Academy
Missouri Military Academy Photo - Established in 1889, Missouri Military Academy has transformed young men into leaders who are well-educated, prepared gentlemen of character. Our long history and distinct traditions inspire a sense of pride and duty among the young men who seek to fulfill their potential at MMA.
All-Boys
(7)
Endowment: $55 M
Grades: 7-12, PG
204 Grand Street
Mexico, MO 65265
(573) 581-1776
Rank: #21-2221.-22
Trinity-Pawling School
Trinity-Pawling School Photo - The next-generation school for boys is here, on a campus that feels warm and welcoming and human-scaled, in an academic community that thinks ahead, looks forward, and gets transformational results.
All-Boys (Episcopal)
(1)
Endowment: $55 M
Grades: 8-12, PG  | 7-12, PG (day)
700 Route 22
Pawling, NY 12564
(845) 855-4825
Rank: #2323
Endowment: $51 M
Grades: 9-12, PG  | K-12, PG (day)
65-1692 Kohala Mountain Road
Kamuela, HI 96743
(808) 881-4321
Rank: #2424
Endowment: $50 M
Grades: 9-12
6155 Fountain Valley School Road
Colorado Springs, CO 80911
(719) 391-5251
Rank: #2525
Portsmouth Abbey School
Portsmouth Abbey School Photo
(Catholic)
(5)
Endowment: $48 M
Grades: 9-12
285 Cory's Lane
Portsmouth, RI 02871
(401) 643-1248
Rank: #2626
Cardigan Mountain School
Cardigan Mountain School Photo
All-Boys
(2)
Endowment: $42 M
Grades: 6-9
62 Alumni Drive
Canaan, NH 03741
(603) 523-3548
Rank: #2727
Riverside Preparatory Academy
Riverside Preparatory Academy Photo
All-Boys
(5)
Endowment: $40 M
Grades: 6-12
2001 Riverside Drive
Gainesville, GA 30501
(877) 692-2338
Rank: #28-2928.-29
Grier School
Grier School Photo
All-Girls
(6)
Endowment: $37 M
Grades: 7-12, PG  | 5-12, PG (day)
2522 Grier School Road
Tyrone, PA 16686
(814) 684-3000
Rank: #28-2928.-29
Saint James School
Saint James School Photo - Saint James' picturesque 800-acre campus is conveniently located only 70 miles from the Baltimore-Washington metropolitan area.
(Episcopal)
Endowment: $37 M
Grades: 8-12
17641 College Road
Hagerstown, MD 21740
(301) 733-9330
Rank: #3030
The Ethel Walker School
The Ethel Walker School Photo
All-Girls
Endowment: $35 M
Grades: 7-12, PG  | 6-12, PG (day)
230 Bushy Hill Road
Simsbury, CT 06070
(860) 408-4200
Rank: #31-3231.-32
New Hampton School
New Hampton School Photo - Energetic, exceptional faculty who drive a customized learning experience.
(8)
Endowment: $34 M
Grades: 9-12, PG
70 Main Street
New Hampton, NH 03256
(603) 677-3401
Rank: #31-3231.-32
Saint Mary's School
Saint Mary's School Photo - At Saint Mary's School, girls take center stage. We know girls and we know the all-girl learning environment at Saint Mary's School inspires girls to step outside their comfort zone, engage their minds, amplify their voices, and discover who they are and who they want to become!
All-Girls (Episcopal)
(1)
Endowment: $34 M
Grades: 9-12
900 Hillsborough Street
Raleigh, NC 27603
(919) 424-4100
Rank: #33-3433.-34
Canterbury School
Canterbury School Photo - At Canterbury, you will develop the skills most essential to meeting future challenges and succeeding in college. These start with critical thinking, excellence in writing, and a solid foundation in digital literacy.
(Catholic)
(1)
Endowment: $33 M
Grades: 9-12, PG
101 Aspetuck Avenue
New Milford, CT 06776
(860) 210-3832
Rank: #33-3433.-34
Delphian School
Delphian School Photo - Delphian is located just one hour from Portland, OR. on a large 720 acre wooded campus. The residential community is in constant motion, alive with students from all around the world.
(26)
Endowment: $33 M
Grades: 5-12  | PK-12 (day)
20950 SW Rock Creek Road
Sheridan, OR 97378
(503) 843-3521
Rank: #35-3635.-36
Proctor Academy
Proctor Academy Photo - A community built on authentic relationships.
(12)
Endowment: $31 M
Grades: 9-12, PG
204 Main Street - P.O. Box 500
Andover, NH 03216
(603) 735-6652
Rank: #35-3635.-36
Rumsey Hall School
Rumsey Hall School Photo - Rumsey Hall School campus.
Endowment: $31 M
Grades: 5-9  | PK-9 (day)
201 Romford Rd.
Washington, CT 06794
(860) 868-0535
Rank: #3737
The Winchendon School
The Winchendon School Photo
(2)
Endowment: $30 M
Grades: 9-12, PG
172 Ash Street
Winchendon, MA 01475
(978) 297-4476
Rank: #3838
The Putney School
The Putney School Photo
(14)
Endowment: $28 M
Grades: 9-12, PG
418 Houghton Brook Road
Putney, VT 05346
(802) 387-6201
Rank: #39-4139.-41
Endowment: $25 M
Grades: 7-12
80 chemin Moulton Hill
Sherbrooke, Quebec, Canada J1M 1Z8
(819) 566-0238
Rank: #39-4139.-41
Miss Hall's School
Miss Hall's School Photo - A talented, supportive community of learners awaits you at MHS. Our faculty are dedicated mentors who are passionate about their subjects and creative in their teaching, unafraid to ditch the textbook in favor of collaborative, project-based learning.
All-Girls
(6)
Endowment: $25 M
Grades: 9-12, PG
492 Holmes Road
Pittsfield, MA 01201
(413) 499-1300
Rank: #39-4139.-41
Stanstead College
Stanstead College Photo
(2)
Endowment: $25 M
Grades: 7-12, PG
450 Dufferein
Stanstead, Canada 05830
(819) 876-2223
Rank: #4242
Kents Hill School
Kents Hill School Photo - Our idyllic, 400-acre campus is nestled in the midst of the Belgrade Lakes and provides sweeping views of the mountains of Maine and New Hampshire.
(1)
Endowment: $24 M
Grades: 9-12, PG
PO Box 257, 1614 Main St., Rte. 17
Kents Hill, ME 04349
(207) 685-1606
Rank: #4343
St. Andrew's School
St. Andrew's School Photo - Margot's House
(1)
Endowment: $22 M
Grades: 9-12, PG  | 6-12, PG (day)
63 Federal Road
Barrington, RI 02806
(401) 246-1230
Rank: #44-4744.-47
Endowment: $20 M
Grades: 9-12
PO Box 100
Wilcox, Canada S0G5E0
(306) 732-1203
Rank: #44-4744.-47
Endowment: $20 M
Grades: 8-12, PG
1000 Samuel Miller Loop
Charlottesville, VA 22903
(434) 818-1385
Rank: #44-4744.-47
Rectory School
Rectory School Photo - At Rectory, our students learn by doing. Our academic philosophy focuses on hands on learning, student choice, and teaching students how to advocate for themselves.
(2)
Endowment: $20 M
Grades: 5-9  | PK-9 (day)
P.O. Box 68 528 Pomfret Street
Pomfret, CT 06258
(860) 928-1328
Rank: #44-4744.-47
St. Andrew's-Sewanee School
St. Andrew's-Sewanee School Photo - Founded in 1868, St. Andrew's-Sewanee and its students enjoy many long held traditions like the Morning Watch, ringing the Chapel Bells after a victory, Creative Expression Assemblies, Winterim, and the International Flag Ceremony. Recent additions include the Tri-Tree Competition, the pancake race, and the Blessing of the Animals.
(Episcopal)
(6)
Endowment: $20 M
Grades: 7-12  | 6-12 (day)
290 Quintard Rd.
Sewanee, TN 37375
(931) 598-5651
Rank: #48-4948.-49
Christ School
Christ School Photo
All-Boys (Episcopal)
(1)
Endowment: $18 M
Grades: 8-12
500 Christ School Road
Asheville, NC 28704
(828) 684-6232
Rank: #48-4948.-49
Fork Union Military Academy
Fork Union Military Academy Photo - The cadets in parade formation. The first full dress parade of the year begins usually at the end of April and is on Sunday.
All-Boys (Baptist)
(7)
Endowment: $18 M
Grades: 7-12, PG
PO Box 278, 4744 James Madison Hwy
Fork Union, VA 23055
(434) 842-4205
Rank: #50-5250.-52
Cheshire Academy
Cheshire Academy Photo - Our 104 acre (0.42 sq km) campus is in the center of the quiet, beautiful Town of Cheshire, CT. Though just a two hour drive to both Boston and New York, Cheshire is a quiet small town where students are in walking distance of a few area shops and cafes.
(5)
Endowment: $16 M
Grades: 9-12, PG
10 Main Street
Cheshire, CT 06410
(203) 439-7250
Rank: #50-5250.-52
Tilton School
Tilton School Photo - Tilton School is an independent, coeducational, college preparatory school serving students from 9th to 12th grade and postgraduates. Tilton's student body of 220 consists of day students and boarding students from 19 states and 16 countries. Although the Tilton Experience is different for every student, it challenges all students to try new things, learn new skills, and try new things.
(1)
Endowment: $16 M
Grades: 9-12, PG
30 School Street
Tilton, NH 03276
(603) 286-1733
Rank: #50-5250.-52
Endowment: $16 M
Grades: 9-12, PG
12 Highland Street
Natick, MA 01760
(508) 650-5020
Rank: #53-5453.-54
Brewster Academy
Brewster Academy Photo - Welcome to Wolfeboro! Brewster's lakeside location provides students with a variety of resources on and off campus. Our outdoor facilities include six athletic fields, nine tennis courts, and a boathouse which provides storage and work areas for rowing shells and "420" racing sailboats.
(10)
Endowment: $15 M
Grades: 9-12, PG
80 Academy Drive
Wolfeboro, NH 03894
(603) 569-7200
Rank: #53-5453.-54
Perkiomen School
Perkiomen School Photo - Innovation Center
(5)
Endowment: $15 M
Grades: 6-12, PG
200 Seminary Street
Pennsburg, PA 18073
(215) 679-9511
Rank: #5555
Endowment: $14 M
Grades: 9-12, PG
45 Georgian Road
Weston, MA 02493
(781) 642-8650
Rank: #56-5756.-57
Dunn School
Dunn School Photo - In 2020 the new Leadership Center was completed. Overlooking the open space known as Munger Common, the center provides state of the art meeting rooms and learning facilities, is home to the student-run Earwig Cafe, and hosts our college counseling team. Students can be found gathering both indoors and outside the center for conversation and relaxation.
Endowment: $13 M
Grades: 9-12  | 6-12 (day)
P.O. Box 98, 2555 W. Highway 154
Los Olivos, CA 93441
(800) 287-9197
Rank: #56-5756.-57
Saint John's Preparatory School
Saint John's Preparatory School Photo - We are located on 2900 of woodlands and lakes in Collegeville, MN
(Catholic)
Endowment: $13 M
Grades: 9-12, PG  | 6-12, PG (day)
2280 Watertower Road
Collegeville, MN 56321
(320) 363-3315
Rank: #58-6058.-60
The Bement School
The Bement School Photo
Endowment: $12 M
Grades: 3-9  | K-9 (day)
94 Old Main Street, PO Box 8
Deerfield, MA 01342
(413) 774-4209
Rank: #58-6058.-60
Endowment: $12 M
Grades: 5-9  | PK-9 (day)
211 Indian Mountain Road
Lakeville, CT 06039
(435) 480-0871
Rank: #58-6058.-60
Wilbraham & Monson Academy
Wilbraham & Monson Academy Photo
(11)
Endowment: $12 M
Grades: 8-12, PG  | 6-12, PG (day)
423 Main Street
Wilbraham, MA 01095
(413) 596-9107
Rank: #6161
Randolph-Macon Academy
Randolph-Macon Academy Photo
(United Methodist)
(4)
Endowment: $10 M
Grades: 6-12, PG
200 Academy Drive
Front Royal, VA 22630
(540) 636-5484
Rank: #6262
Forman School
Forman School Photo - The Forman Green is at the center of campus life. Surrounded by dorms and faculty homes, it reflects the traditional charm of an historic New England community.
(6)
Endowment: $8 M
Grades: 9-12, PG
12 Norfolk Road, P.O. Box 80
Litchfield, CT 06759
(860) 567-1802
Rank: #6363
Idyllwild Arts Academy
Idyllwild Arts Academy Photo - Idyllwild Arts Academy is home to 280 students from 30 countries and 26 US states, all devoted to intensive study of the arts. Located 2 hours from Los Angeles, 2 hours from San Diego, and 1 hour from Palm Springs, the Academy is an artistic crossroads for Southern California.
(23)
Endowment: $7 M
Grades: 9-12, PG
52500 Temecula Road
Idyllwild, CA 92549
(951) 468-7223
Rank: #64-6664.-66
Christchurch School
Christchurch School Photo - "Set your course at the river. " Established in the Episcopal tradition, Christchurch is inclusive, welcoming students and families of all faiths and backgrounds.
(Episcopal)
Endowment: $6 M
Grades: 9-12
49 Seahorse Lane
Christchurch, VA 23031
(804) 542-6843
Rank: #64-6664.-66
San Marcos Academy
San Marcos Academy Photo - San Marcos Academy has offered a tradition of excellence in private, Christian education since 1907.
(Baptist)
Endowment: $6 M
Grades: 6-12  | Pre-K-12 (day)
2801 Ranch Road 12
San Marcos, TX 78666
(800) 428-5120
Rank: #64-6664.-66
Solebury School
Solebury School Photo - Solebury School's Math and Science (STEM) program offers students opportunities to pursue AP and Honors classes, as well as Engineering courses that will prepare them for college.
(4)
Endowment: $6 M
Grades: 9-12, PG
6832 Phillips Mill Road
New Hope, PA 18938
(215) 862-5261
Rank: #67-7267.-72
Mount Michael Benedictine School
Mount Michael Benedictine School Photo
All-Boys (Catholic)
Endowment: <$5 M
Grades: 9-12
22520 Mount Michael Road
Elkhorn, NE 68022
(402) 238-1457
Rank: #67-7267.-72
Washington Academy
Washington Academy Photo - Washington Academy, established in 1792, is one of the oldest day & boarding co-ed high schools in the USA. It is located on the Downeast Maine coast, and boast 425 total students from 25 different countries. The Alumni Building is one of nine buildings on its 75+ acre campus.
Endowment: <$5 M
Grades: 9-12, PG
PO Box 190, 66 Cutler Road
East Machias, ME 04630
(207) 255-8301
Rank: #67-7267.-72
Maur Hill - Mount Academy (MH-MA)
Maur Hill - Mount Academy (MH-MA) Photo
(Catholic)
Endowment: <$5 M
Grades: 9-12
1000 Green St.
Atchison, KS 66002
(913) 367-5482
Rank: #67-7267.-72
Hoosac School
Hoosac School Photo - Hoosac School was founded in 1889.
(Episcopal)
Endowment: <$5 M
Grades: 8-12, PG
14 Pine Valley Road
Hoosick, NY 12089
(518) 686-7331
Rank: #67-7267.-72
Ojai Valley School
Ojai Valley School Photo - OVS offers an exceptional college-prep program. Recent college acceptances for our students include Stanford, Columbia, Northeastern, NYU, Boston College, UC Berkeley, UCLA, Pitzer College, Smith College, Vassar College, Cal Poly San Luis Obispo, and many more.
(2)
Endowment: <$5 M
Grades: 3-12  | PK-12 (day)
723 El Paseo Road
Ojai, CA 93023
(805) 646-1423
Rank: #67-7267.-72
The MacDuffie School
The MacDuffie School Photo - Aerial view of MacDuffie's 250 acre campus
(1)
Endowment: <$5 M
Grades: 6-12, PG
66 School Street
Granby, MA 01033
(413) 255-0000

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