Featured: Grier School
Among "All Schools," view the twenty boarding schools with the "highest percentage of boarding students." First, some important notes:
- The percentage of boarding students at a school is only an indicator of the balance between boarding students and day students.
- Many boarding schools with a smaller percentage of boarders still have very strong boarding programs, so it helps to look individually at each school.
| Sorted by range (alphabetically within range) | * Indicates Boarding Grades Offered | ||
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| 1.-24. Advanced Academy of Georgia | Co-Ed | 11-12 | 100% |
| 1.-24. Blue Ridge School | All-Boys | 9-12 | 100% |
| 1.-24. Camden Military Academy | All-Boys | 7-12, PG | 100% |
| 1.-24. Carson Long Military Institute | All-Boys | 6-12 | 100% |
| 1.-24. EduKick Academic Soccer (Sports) Boarding School Academies | Co-Ed | 8-12, PG | 100% |
| 1.-24. Episcopal High School | Co-Ed | 9-12 | 100% |
| 1.-24. Fenster School | Co-Ed | 9-12 | 100% |
| 1.-24. The Gow School | All-Boys | 7-12, PG | 100% |
| 1.-24. Grand River Academy | All-Boys | 9-12, PG | 100% |
| 1.-24. Grier School | All-Girls | 6-12, PG | 100% |
| 1.-24. Hampshire Country School | All-Boys | 3-12 | 100% |
| 1.-24. Hyde-Woodstock | Co-Ed | 9-12, PG | 100% |
| 1.-24. Leysin American School in Switzerland (LAS) | Co-Ed | 8-12, PG | 100% |
| 1.-24. Missouri Military Academy | All-Boys | 6-12, PG | 100% |
| 1.-24. Nawa Academy | Co-Ed | 7-12 | 100% |
| 1.-24. New Mexico Military Institute | Co-Ed | 9-12, PG | 100% |
| 1.-24. Oak Creek Ranch School | Co-Ed | 7-12, PG | 100% |
| 1.-24. Oliverian School | Co-Ed | 9-12, PG | 100% |
| 1.-24. St. Andrew's School, DE | Co-Ed | 9-12 | 100% |
| 1.-24. St. Paul's School | Co-Ed | 9-12 | 100% |
| Sorted by range (alphabetically within range) | * Indicates Boarding Grades Offered | ||
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| 1.-24. St. Thomas More School | All-Boys | 8-12, PG | 100% |
| 1.-24. Scattergood Friends School | Co-Ed | 9-12, PG | 100% |
| 1.-24. Wolfeboro: The Summer Boarding School | Co-Ed | 6-12, PG | 100% |
| 1.-24. Woodberry Forest School | All-Boys | 9-12 | 100% |
| 25.-30. Bridgton Academy | All-Boys | 12-12, PG | 99% |
| 25.-30. CCI The Renaissance School | Co-Ed | 10-12, PG | 99% |
| 25.-30. Hyde-Bath | Co-Ed | 9-12, PG | 99% |
| 25.-30. Midland School | Co-Ed | 9-12 | 99% |
| 25.-30. Valley Forge Military Academy | All-Boys | 7-12, PG | 99% |
| 25.-30. Wentworth Military Academy & College | Co-Ed | 9-12, PG | 99% |
| 31.-32. Massanutten Military Academy | Co-Ed | 7-12, PG | 98% |
| 31.-32. St. John's Northwestern Military Academy | All-Boys | 7-12, PG | 98% |
| 33.-35. Fork Union Military Academy | All-Boys | 6-12, PG | 97% |
| 33.-35. Howe Military School & Summer Camp | Co-Ed | 5-12 | 97% |
| 33.-35. Oak Hill Academy | Co-Ed | 8-12 | 97% |
| 36.-37. Army and Navy Academy | All-Boys | 7-12 | 96% |
| 36.-37. Wasatch Academy | Co-Ed | 9-12, PG | 96% |
| 38.-45. Colorado Timberline Academy | Co-Ed | 9-12, PG | 95% |
| 38.-45. The Glenholme School | Co-Ed | 5-12, PG | 95% |
| 38.-45. Idyllwild Arts Academy | Co-Ed | 9-12, PG | 95% |
| 38.-45. The Kiski School | All-Boys | 9-12, PG | 95% |
| 38.-45. Olney Friends School | Co-Ed | 9-12 | 95% |
| 38.-45. Sedbergh School | Co-Ed | 7-12 | 95% |
| 38.-45. Shawnigan Lake School | Co-Ed | 8-12 | 95% |
| 38.-45. Squaw Valley Academy | Co-Ed | 6-12 | 95% |
| 46. Fishburne Military School | All-Boys | 7-12, PG | 94% |
| 47.-49. Hargrave Military Academy | All-Boys | 7-12, PG | 93% |
| 47.-49. The Marvelwood School | Co-Ed | 9-12, PG | 93% |
| 47.-49. Salisbury School | All-Boys | 9-12, PG | 93% |
| 50. The Hotchkiss School | Co-Ed | 9-12, PG | 92% |
| 51.-52. Kent School | Co-Ed | 9-12, PG | 91% |
| 51.-52. Oakdale Christian Academy | Co-Ed | 7-12 | 91% |
| 53.-64. Buxton School | Co-Ed | 9-12 | 90% |
| 53.-64. Eagle Hill School | Co-Ed | 8-12 | 90% |
| 53.-64. The Forman School | Co-Ed | 9-12, PG | 90% |
| 53.-64. The Greenwood School | All-Boys | 4-9 | 90% |
| 53.-64. Hoosac School | Co-Ed | 8-12, PG | 90% |
| 53.-64. Interlochen Arts Academy | Co-Ed | 9-12, PG | 90% |
| 53.-64. The Leelanau School | Co-Ed | 9-12 | 90% |
| 53.-64. Purnell School | All-Girls | 9-12 | 90% |
| 53.-64. Riverside Military Academy | All-Boys | 7-12 | 90% |
| 53.-64. South Kent School | All-Boys | 9-12, PG | 90% |
| 53.-64. The Thacher School | Co-Ed | 9-12 | 90% |
| 53.-64. The Winchendon School | Co-Ed | 9-12, PG | 90% |
| 65.-66. Berkshire School | Co-Ed | 9-12, PG | 89% |
| 65.-66. Culver Academies | Co-Ed | 9-12 | 89% |
| 67.-68. New York Military Academy | Co-Ed | 7-12, PG | 88% |
| 67.-68. North Country School | Co-Ed | 4-9 | 88% |
| 69. Deerfield Academy | Co-Ed | 9-12, PG | 87% |
| 70.-76. Cushing Academy | Co-Ed | 9-12, PG | 85% |
| 70.-76. The Delphian School | Co-Ed | 3-12 | 85% |
| 70.-76. Linden Hill School | All-Boys | 3-9 | 85% |
| 70.-76. Mercersburg Academy | Co-Ed | 9-12, PG | 85% |
| 70.-76. The Phelps School | All-Boys | 7-12, PG | 85% |
| 70.-76. St. George's School | Co-Ed | 9-12 | 85% |
| 70.-76. The Taft School | Co-Ed | 9-12, PG | 85% |
| 77.-81. Cardigan Mountain School | All-Boys | 6-9 | 84% |
| 77.-81. Chatham Hall | All-Girls | 9-12 | 84% |
| 77.-81. Groton School | Co-Ed | 8-12 | 84% |
| 77.-81. The Meeting School | Co-Ed | 9-12, PG | 84% |
| 77.-81. Verde Valley School | Co-Ed | 9-12 | 84% |
| 82. Cate School | Co-Ed | 9-12 | 83% |
| 83.-84. Holderness School | Co-Ed | 9-12, PG | 81% |
| 83.-84. St. Mark's School | Co-Ed | 9-12 | 81% |
| 85.-103. Besant Hill School (Formerly Happy Valley School) | Co-Ed | 9-12 | 80% |
| 85.-103. Blair Academy | Co-Ed | 9-12, PG | 80% |
| 85.-103. Brenau Academy | All-Girls | 9-12, PG | 80% |
| 85.-103. Brentwood College School | Co-Ed | 9-12, PG | 80% |
| 85.-103. Brewster Academy | Co-Ed | 9-12, PG | 80% |
| 85.-103. CFS, The School at Church Farm | All-Boys | 7-12 | 80% |
| 85.-103. Darrow School | Co-Ed | 9-12 | 80% |
| 85.-103. Hill School | Co-Ed | 9-12, PG | 80% |
| 85.-103. Linden Hall | All-Girls | 6-12, PG | 80% |
| 85.-103. Maharishi Academy of Total Knowledge | All-Boys | 9-12 | 80% |
| 85.-103. Millbrook School | Co-Ed | 9-12, PG | 80% |
| 85.-103. Northfield Mount Hermon School | Co-Ed | 9-12, PG | 80% |
| 85.-103. Northwood School | Co-Ed | 9-12, PG | 80% |
| 85.-103. Phillips Exeter Academy | Co-Ed | 9-12, PG | 80% |
| 85.-103. Pomfret School | Co-Ed | 9-12, PG | 80% |
| 85.-103. Proctor Academy | Co-Ed | 9-12, PG | 80% |
| 85.-103. Subiaco Academy | All-Boys | 7-12 | 80% |
| 85.-103. Trinity Pawling School | All-Boys | 9-12, PG | 80% |
| 85.-103. The White Mountain School | Co-Ed | 9-12, PG | 80% |
| 104.-106. Dublin School | Co-Ed | 9-12 | 78% |
| 104.-106. Gould Academy | Co-Ed | 9-12, PG | 78% |
| 104.-106. St. Margaret's School | All-Girls | 8-12 | 78% |
| 107. Randolph-Macon Academy | Co-Ed | 6-12, PG | 77% |
| 108.-110. Avon Old Farms School | All-Boys | 9-12, PG | 76% |
| 108.-110. The Gunnery | Co-Ed | 9-12, PG | 76% |
| 108.-110. Tilton School | Co-Ed | 9-12, PG | 76% |
| 111.-120. Asheville School | Co-Ed | 9-12 | 75% |
| 111.-120. Christ School | All-Boys | 8-12 | 75% |
| 111.-120. Hillside School | All-Boys | 5-9 | 75% |
| 111.-120. Miss Hall's School | All-Girls | 9-12, PG | 75% |
| 111.-120. New Hampton School | Co-Ed | 9-12, PG | 75% |
| 111.-120. The Putney School | Co-Ed | 9-12, PG | 75% |
| 111.-120. San Marcos Baptist Academy | Co-Ed | 7-12 | 75% |
| 111.-120. Stanstead College | Co-Ed | 7-12 | 75% |
| 111.-120. The Storm King School | Co-Ed | 8-12 | 75% |
| 111.-120. Westtown School | Co-Ed | 9-12 | 75% |
| 121.-123. Choate Rosemary Hall | Co-Ed | 9-12, PG | 73% |
| 121.-123. Kents Hill School | Co-Ed | 9-12, PG | 73% |
| 121.-123. Phillips Academy Andover | Co-Ed | 9-12, PG | 73% |
| 124.-125. Foxcroft School | All-Girls | 9-12 | 72% |
| 124.-125. Shattuck-St. Mary's School | Co-Ed | 6-12, PG | 72% |
| 126. Wayland Academy | Co-Ed | 9-12 | 71% |
| 127.-140. Bronte College of Canada | Co-Ed | 9-12, PG | 70% |
| 127.-140. Brooks School | Co-Ed | 9-12 | 70% |
| 127.-140. Canterbury School | Co-Ed | 9-12, PG | 70% |
| 127.-140. Florida Air Academy | Co-Ed | 6-12 | 70% |
| 127.-140. The Knox School | Co-Ed | 7-12, PG | 70% |
| 127.-140. Middlesex School | Co-Ed | 9-12 | 70% |
| 127.-140. Oak Ridge Military Academy | Co-Ed | 7-12 | 70% |
| 127.-140. Oldfields School | All-Girls | 8-12, PG | 70% |
| 127.-140. The Orme School of Arizona | Co-Ed | 8-12, PG | 70% |
| 127.-140. Portsmouth Abbey School | Co-Ed | 9-12 | 70% |
| 127.-140. Ridley College | Co-Ed | Pre-K-12, PG | 70% |
| 127.-140. Saint James School | Co-Ed | 8-12 | 70% |
| 127.-140. St. Timothy's School | All-Girls | 9-12, PG | 70% |
| 127.-140. Vermont Academy | Co-Ed | 9-12, PG | 70% |
| 141. Tabor Academy | Co-Ed | 9-12 | 69% |
| 142.-144. Hebron Academy | Co-Ed | 9-12, PG | 68% |
| 142.-144. Lawrenceville School | Co-Ed | 9-12, PG | 68% |
| 142.-144. Miller School | Co-Ed | 8-12, PG | 68% |
| 145.-146. The Rectory School | Co-Ed | 5-9 | 67% |
| 145.-146. Stoneleigh-Burnham School | All-Girls | 7-12, PG | 67% |
| 147.-153. Fountain Valley School of Colorado | Co-Ed | 9-12 | 66% |
| 147.-153. The Governor's Academy (formerly Governor Dummer Academy) | Co-Ed | 9-12 | 66% |
| 147.-153. Kimball Union Academy | Co-Ed | 9-12, PG | 66% |
| 147.-153. Southwestern Academy | Co-Ed | 7-12, PG | 66% |
| 147.-153. Suffield Academy | Co-Ed | 9-12, PG | 66% |
| 147.-153. Westminster School | Co-Ed | 9-12, PG | 66% |
| 147.-153. Westover School | All-Girls | 9-12 | 66% |
| 154.-156. Emma Willard School | All-Girls | 9-12, PG | 65% |
| 154.-156. Peddie School | Co-Ed | 9-12, PG | 65% |
| 154.-156. West Nottingham Academy | Co-Ed | 9-12, PG | 65% |
| 157.-158. Miss Porter's School | All-Girls | 9-12 | 64% |
| 157.-158. Western Reserve Academy | Co-Ed | 9-12, PG | 64% |
| 159. Virginia Episcopal School | Co-Ed | 9-12 | 63% |
| 160. Dunn School | Co-Ed | 9-12 | 62% |
| 161. The Webb Schools | Co-Ed | 9-12 | 61% |
| 162.-173. Cheshire Academy | Co-Ed | 9-12, PG | 60% |
| 162.-173. Christchurch School | All-Boys | 9-12, PG | 60% |
| 162.-173. Colorado Rocky Mountain School | Co-Ed | 9-12 | 60% |
| 162.-173. Landmark School | Co-Ed | 9-12 | 60% |
| 162.-173. The Loomis Chaffee School | Co-Ed | 9-12, PG | 60% |
| 162.-173. Lustre Christian High School | Co-Ed | 9-12 | 60% |
| 162.-173. Perkiomen School | Co-Ed | 7-12, PG | 60% |
| 162.-173. St. Catherine's Military Academy | All-Boys | 4-8 | 60% |
| 162.-173. Salem Academy | All-Girls | 9-12 | 60% |
| 162.-173. The Stony Brook School | Co-Ed | 7-12 | 60% |
| 162.-173. Tallulah Falls School | Co-Ed | 7-12 | 60% |
| 162.-173. The Williston Northampton School | Co-Ed | 9-12, PG | 60% |
| 174. Rabun Gap-Nacoochee School | Co-Ed | 7-12 | 57% |
| 175. Thomas Jefferson School | Co-Ed | 7-12, PG | 55% |
| 176. George School | Co-Ed | 9-12 | 53% |
| 177. The Madeira School | All-Girls | 9-12 | 52% |
| 178.-190. Annie Wright School | All-Girls | 9-12 | 50% |
| 178.-190. Chapel Hill-Chauncy Hall | Co-Ed | 9-12, PG | 50% |
| 178.-190. Family First Academy | Co-Ed | 8-12 | 50% |
| 178.-190. Hawaii Preparatory Academy | Co-Ed | 6-12, PG | 50% |
| 178.-190. High Mowing School | Co-Ed | 9-12 | 50% |
| 178.-190. Lake Forest Academy | Co-Ed | 9-12, PG | 50% |
| 178.-190. Lawrence Academy | Co-Ed | 9-12 | 50% |
| 178.-190. Milton Academy | Co-Ed | 9-12 | 50% |
| 178.-190. Oakland School | Co-Ed | 9-12 | 50% |
| 178.-190. Rosseau Lake College | Co-Ed | 7-12, PG | 50% |
| 178.-190. Rothesay Netherwood School | Co-Ed | 6-12 | 50% |
| 178.-190. St. Andrew's College | All-Boys | 6-12 | 50% |
| 178.-190. Stevenson School | Co-Ed | 9-12 | 50% |
| 191.-192. The Ethel Walker School | All-Girls | 9-12 | 48% |
| 191.-192. Santa Catalina School | All-Girls | 9-12 | 48% |
| 193.-195. Academy of the Holy Family | All-Girls | 9-12, PG | 47% |
| 193.-195. Houghton Academy | Co-Ed | 9-12, PG | 47% |
| 193.-195. St. Andrew's-Sewanee School | Co-Ed | 9-12 | 47% |
| 196. Brandon Hall School | Co-Ed | 4-12, PG | 46% |
| 197.-200. Lowell Whiteman School | Co-Ed | 9-12 | 45% |
| 197.-200. Oakwood Friends School | Co-Ed | 9-12 | 45% |
| 197.-200. Saint Mary's School | All-Girls | 9-12 | 45% |
| 197.-200. St. Michaels University School | Co-Ed | 8-12 | 45% |
| 201.-202. San Domenico School | All-Girls | 9-12 | 44% |
| 201.-202. Wilbraham & Monson Academy | Co-Ed | 9-12, PG | 44% |
| 203.-204. TASIS The American School in England | Co-Ed | 9-12, PG | 43% |
| 203.-204. Wyoming Seminary Upper School | Co-Ed | 9-12, PG | 43% |
| 205. Concord Academy | Co-Ed | 9-12 | 42% |
| 206.-262. La Lumiere School | Co-Ed | 9-12, PG | <40% |
| 206.-262. The Masters School | Co-Ed | 9-12 | <40% |
| 206.-262. Ojai Valley School | Co-Ed | 3-12 | <40% |
| 206.-262. Dana Hall School | All-Girls | 9-12 | <40% |
| 206.-262. Darlington School | Co-Ed | 9-12, PG | <40% |
| 206.-262. St. Stephen's Episcopal School | Co-Ed | 8-12 | <40% |
| 206.-262. Cranbrook Schools | Co-Ed | 9-12 | <40% |
| 206.-262. St. Andrew's School - RI | Co-Ed | 9-12 | <40% |
| 206.-262. Stuart Hall School | Co-Ed | 8-12 | <40% |
| 206.-262. The Webb School | Co-Ed | 7-12, PG | <40% |
| 206.-262. Saint John's Preparatory School | Co-Ed | 9-12, PG | <40% |
| 206.-262. Admiral Farragut Academy | Co-Ed | 6-12 | <40% |
| 206.-262. Andrews Osborne Academy | Co-Ed | 7-12 | <40% |
| 206.-262. Baylor School | Co-Ed | 9-12 | <40% |
| 206.-262. The Hun School of Princeton | Co-Ed | 9-12, PG | <40% |
| 206.-262. Montverde Academy | Co-Ed | 7-12, PG | <40% |
| 206.-262. St. Croix Schools | Co-Ed | 6-12, PG | <40% |
| 206.-262. Villanova Preparatory School | Co-Ed | 9-12 | <40% |
| 206.-262. Solebury School | Co-Ed | 9-12 | <40% |
| 206.-262. Indian Springs School | Co-Ed | 9-12 | <40% |
| 206.-262. The Pennington School | Co-Ed | 7-12 | <40% |
| 206.-262. Country Day School, Costa Rica | Co-Ed | 8-12 | <40% |
| 206.-262. Fay School | Co-Ed | 6-9 | <40% |
| 206.-262. The Cambridge School of Weston | Co-Ed | 9-12, PG | <40% |
| 206.-262. Cotter Schools | Co-Ed | 9-12, PG | <40% |
| 206.-262. The Linsly School | Co-Ed | 7-12 | <40% |
| 206.-262. St. Johnsbury Academy | Co-Ed | 9-12, PG | <40% |
| 206.-262. Garrison Forest School | All-Girls | 8-12 | <40% |
| 206.-262. Georgetown Preparatory School | All-Boys | 9-12 | <40% |
| 206.-262. Monte Vista Christian School | Co-Ed | 9-12 | <40% |
| 206.-262. Venta Preparatory School | Co-Ed | 1-10 | <40% |
| 206.-262. The MacDuffie School | Co-Ed | 9-12 | <40% |
| 206.-262. Ashbury College | Co-Ed | 9-12 | <40% |
| 206.-262. Fryeburg Academy | Co-Ed | 9-12, PG | <40% |
| 206.-262. Ross School | Co-Ed | 8-12 | <40% |
| 206.-262. Washington Academy | Co-Ed | 9-12, PG | <40% |
| 206.-262. Foxcroft Academy | Co-Ed | 9-12, PG | <40% |
| 206.-262. St. Stanislaus College | All-Boys | 7-12 | <40% |
| 206.-262. St. Anne's-Belfield School | Co-Ed | 9-12 | <40% |
| 206.-262. Woodside Priory School (The Priory) | Co-Ed | 9-12 | <40% |
| 206.-262. Oregon Episcopal School | Co-Ed | 9-12 | <40% |
| 206.-262. The Bishop Strachan School | All-Girls | 7-12 | <40% |
| 206.-262. Saint Andrew's School | Co-Ed | 9-12 | <40% |
| 206.-262. The Athenian School | Co-Ed | 9-12 | <40% |
| 206.-262. Bement School | Co-Ed | 3-9 | <40% |
| 206.-262. North Broward Preparatory School | Co-Ed | 7-12 | <40% |
| 206.-262. Flintridge Sacred Heart Academy | All-Girls | 9-12 | <40% |
| 206.-262. The Hockaday School | All-Girls | 8-12 | <40% |
| 206.-262. The King's Academy | Co-Ed | 7-12 | <40% |
| 206.-262. The Brook Hill School | Co-Ed | 8-12 | <40% |
| 206.-262. TMI -The Episcopal School of Texas | Co-Ed | 8-12 | <40% |
| 206.-262. The Bolles School | Co-Ed | 7-12, PG | <40% |
| 206.-262. Havergal College | All-Girls | 9-12 | <40% |
| 206.-262. George Stevens Academy | Co-Ed | 9-12 | <40% |
| 206.-262. Buffalo Seminary | All-Girls | 9-12 | <40% |
| 206.-262. St. Albans School | All-Boys | 9-12 | <40% |
| 206.-262. Carlisle School | Co-Ed | 9-12 | <40% |
• View all schools sorted by "percentage of boarding students"
