| Annie Wright School
| Tacoma | WA | PK-12th | 9th-12th | Girls only | 475 | Episcopal |
| Army and Navy Academy
| Carlsbad | CA | 7th-12th | 7th-12th | Boys only | 339 | None |
| Asheville School
4.7/5
based on 5 student review(s) | Asheville | NC | 9th-12th | 9th-12th | Coed | 250 | None |
| Athenian School
4.9/5
based on 2 student review(s) | Danville | CA | 6th-12th | 9th-12th | Coed | 450 | None |
| Avon Old Farms School
| Avon | CT | 9th-12th | 9th-12th | Boys only | 405 | None |
| Belmont Hill School
5/5
based on 1 student review(s) | Belmont | MA | 7th-12th | 9th-12th | Boys only | 420 | None |
| Ben Lippen School
| Columbia | SC | PK-12th | 6th-12th | Coed | 777 | Non-Denominational Christian |
| Berkshire School
| Sheffield | MA | 9th-PG | 9th-PG | Coed | 371 | None |
| Blair Academy
4.8/5
based on 3 student review(s) | Blairstown | NJ | 9th-12th | 9th-PG | Coed | 442 | Presbyterian |
| Blue Ridge School
| St. George | VA | none | 9th-12th | | 196 | Episcopal |
| Bob Jones Academy
| Greenville | SC | 9th-12th | 9th-12th | Coed | 513 | Non-Denominational Christian |
| Bolles School
| Jacksonville | FL | PK-12th | 7th-PG | Coed | 1730 | None |
| Brewster Academy
| Wolfeboro | NH | 9th-PG | 9th-PG | Coed | 360 | None |
| Brooks School
| North Andover | MA | 9th-12th | 9th-12th | Coed | 370 | Episcopal |
| Buffalo Seminary
| Buffalo | NY | 9th-12th | 9th-12th | Girls only | 180 | None |
| Cambridge School of Weston
| Weston | MA | 9th-12th | 9th-12th | Coed | 330 | None |
| Camden Military Academy
| Camden | SC | none | 7th-PG | Boys only | 292 | None |
| Canterbury School
4/5
based on 1 student review(s) | New Milford | CT | 9th-PG | 9th-PG | Coed | 380 | Roman Catholic |
| Carson Long Military Academy
| New Bloomfield | PA | none | 6th-12th | Boys only | 180 | None |
| Cate School
4.7/5
based on 5 student review(s) | Carpinteria | CA | 9th-12th | 9th-12th | Coed | 260 | None |
| Chatham Hall
| Chatham | VA | 9th-12th | 9th-12th | Girls only | 131 | Episcopal |
| Cheshire Academy
3.2/5
based on 1 student review(s) | Cheshire | CT | 6th-PG | 9th-PG | Coed | 378 | None |
| Choate Rosemary Hall
4.6/5
based on 10 student review(s) | Wallingford | CT | 9th-PG | 9th-PG | Coed | 830 | None |
| Christ School
| Arden | NC | 8th-12th | 8th-12th | Boys only | 248 | Episcopal |
| Colorado Rocky Mountain School
| Carbondale | CO | 9th-12th | 9th-12th | Coed | 155 | None |
| Community School of Idaho
| Sun Valley | ID | PK-12th | 9th-12th | Coed | 315 | None |
| Concord Academy
4.6/5
based on 2 student review(s) | Concord | MA | 9th-12th | 9th-12th | Coed | 363 | None |
| Cotter School
| Winona | MN | 7th-12th | 9th-12th | Coed | 428 | Roman Catholic |
| Covenant School
| Charlottesville | VA | PK-12th | 9th-12th | Coed | 710 | Non-Denominational Christian |
| Cranbrook Schools
4.5/5
based on 5 student review(s) | Bloomfield Hills | MI | PK-12th | 9th-12th | Coed | 1620 | None |
| Culver Academies
4.5/5
based on 3 student review(s) | Culver | IN | 9th-PG | 9th-PG | Coed | 775 | None |
| Cushing Academy
3.2/5
based on 1 student review(s) | Ashburnham | MA | 9th-PG | 9th-PG | Coed | 445 | None |
| Dana Hall School
4.6/5
based on 1 student review(s) | Wellesley | MA | 6th-12th | 9th-12th | Girls only | 460 | None |
| Darlington School
| Rome | GA | PK-12th | 9th-12th | Coed | 911 | None |
| Deerfield Academy
4.5/5
based on 10 student review(s) | Deerfield | MA | 9th-PG | 9th-PG | Coed | 630 | None |
| Delphian School
| Sheridan | OR | K-12th | 7th-12th | Coed | 260 | None |
| Dublin School
| Dublin | NH | 9th-12th | 9th-12th | Coed | 153 | None |
| Emma Willard School
5/5
based on 1 student review(s) | Troy | NY | 9th-PG | 9th-PG | Girls only | 320 | None |
| Episcopal High School
| Alexandria | VA | none | 9th-12th | Coed | 444 | Episcopal |
| Episcopal School of Texas
| San Antonio | TX | 6th-12th | 9th-12th | Coed | 337 | Episcopal |
| Ethel Walker School
4.6/5
based on 1 student review(s) | Simsbury | CT | 6th-12th | 9th-12th | Girls only | 269 | None |
| Fishburne Military School
| Waynesboro | VA | 8th-12th | 8th-12th | Boys only | 200 | None |
| Flintridge Sacred Heart Academy
| La Canada Flingtridge | CA | 9th-12th | 9th-12th | Girls only | 411 | Roman Catholic |
| Fork Union Military Academy
| Fork Union | VA | 6th-PG | 6th-PG | Boys only | 475 | Baptist |
| Fountain Valley School of Colorado
4.9/5
based on 2 student review(s) | Colorado Springs | CO | 9th-12th | 9th-12th | Coed | 244 | None |
| Foxcroft Academy
3.8/5
based on 1 student review(s) | Dover Foxcroft | ME | 9th-12th | 9th-12th | Coed | 439 | None |
| Foxcroft School
| Middleburg | VA | 9th-12th | 9th-12th | Girls only | 178 | None |
| Garrison Forest School
| Owings Mills | MD | PK-12th | 8th-12th | Girls only | 696 | None |
| George School
3.8/5
based on 1 student review(s) | Newtown | PA | 9th-12th | 9th-12th | Coed | 530 | Quakers/Friends |
| Georgetown Preparatory School
4.8/5
based on 1 student review(s) | North Bethesda | MD | 9th-12th | 9th-12th | Boys only | 480 | Roman Catholic (Jesuit) |
| Girard College
| Philadelphia | PA | none | 1st-12th | Coed | 475 | None |
| Gould Academy
| Bethel | ME | 9th-PG | 9th-PG | Coed | 240 | None |
| Governor's Academy
| Byfield | MA | 9th-12th | 9th-12th | Coed | 372 | None |
| Groton School
4.5/5
based on 6 student review(s) | Groton | MA | 8th-12th | 8th-12th | Coed | 370 | Episcopal |
| Gunnery School
3.6/5
based on 1 student review(s) | Washington | CT | 9th-PG | 9th-PG | Coed | 300 | None |
| Hackley School
| Tarrytown | NY | K-12th | 9th-12th | Coed | 833 | None |
| Hargrave Military Academy
| Chatham | VA | 7th-PG | 7th-PG | Boys only | 400 | None |
| Harvey School
| Katonah | NY | 6th-12th | 7th-12th | Coed | 336 | None |
| Hawaii Preparatory Academy
| Kamuela | HI | K-12th | 6th-12th | Coed | 585 | None |
| Hill School
4.4/5
based on 5 student review(s) | Pottstown | PA | 9th-PG | 9th-PG | Coed | 485 | None |
| Hillcrest Lutheran Academy
| Fergus Falls | MN | 7th-12th | 10th-12th | Coed | 197 | Lutheran |
| Hockaday School
4/5
based on 1 student review(s) | Dallas | TX | PK-12th | 8th-12th | Girls only | 1085 | None |
| Holderness School
| Plymouth | NH | 9th-PG | 9th-PG | Coed | 280 | Episcopal |
| Hotchkiss School
4.5/5
based on 4 student review(s) | Lakeville | CT | 9th-PG | 9th-PG | Coed | 560 | None |
| Houghton Academy
| Houghton | NY | 7th-12th | 9th-PG | Coed | 170 | Other |
| Hun School of Princeton
4.2/5
based on 2 student review(s) | Princeton | NJ | 6th-PG | 9th-PG | Coed | 585 | None |
| Hyde School Bath
| Bath | ME | 9th-12th | 9th-12th | Coed | 138 | None |
| Hyde School Woodstock
| Woodstock | CT | 9th-PG | 9th-PG | Coed | 189 | None |
| Idyllwild Arts Academy
| Idyllwid | CA | 8th-PG | 9th-PG | Coed | 266 | None |
| Indian Springs School
| Indian Springs | AL | 8th-12th | 9th-12th | Coed | 300 | None |
| Kent School
4.9/5
based on 3 student review(s) | Kent | CT | 9th-PG | 9th-PG | Coed | 564 | Episcopal |
| Kimball Union Academy
2.6/5
based on 1 student review(s) | Meriden | NH | 9th-PG | 9th-PG | Coed | 344 | None |
| King's Academy
| Seymour | TN | PK-12th | 6th-12th | Coed | 403 | Southern Baptist |
| Kiski School
| Saltburg | PA | 9th-PG | 9th-PG | Boys only | 215 | None |
| Knox School
| St. James | NY | 6th-12th | 7th-12th | Coed | 121 | None |
| La Lumiere School
| La Porte | IN | 9th-PG | 9th-PG | Coed | 131 | Roman Catholic |
| Lake Forest Academy
| Lake Forest | IL | 9th-12th | 9th-12th | Coed | 321 | None |
| Lawrence Academy
| Groton | MA | 9th-12th | 9th-12th | Coed | 398 | None |
| Lawrenceville School
4.6/5
based on 21 student review(s) | Lawrenceville | NJ | 9th-PG | 9th-PG | Coed | 800 | None |
| Lee Academy
| Lee | ME | 9th-PG | 9th-PG | Coed | 253 | None |
| Linden Hall
| Lititz | PA | 6th-PG | 6th-PG | Girls only | 125 | None |
| Linsly School
| Wheeling | WV | 5th-12th | 7th-12th | Coed | 420 | None |
| Loomis Chaffee School
4.1/5
based on 4 student review(s) | Windsor | CT | 9th-PG | 9th-PG | Coed | 672 | None |
| Lyndon Institute
| Lyndon Center | VT | 9th-12th | 9th-12th | Coed | 617 | None |
| MacDuffie School
| Springfield | MA | 6th-12th | 9th-12th | Coed | 190 | None |
| Madeira School
| McLean | VA | 9th-12th | 9th-12th | Girls only | 318 | None |
| Marianapolis Preparatory School
| Thompson | CT | 9th-PG | 9th-PG | Coed | 320 | Roman Catholic |
| Marine Military Academy
| Harlingen | TX | none | 8th-PG | Boys only | 328 | None |
| Marvelwood School
| Kent | CT | 9th-12th | 9th-12th | Coed | 170 | None |
| Massanutten Military Academy
| Woodstock | VA | 7th-PG | 7th-PG | Coed | 169 | None |
| Masters School
| Dobbs Ferry | NY | 5th-12th | 9th-12th | Coed | 560 | None |
| McCallie School
| Chattanooga | TN | 6th-12th | 9th-12th | Boys only | 890 | None |
| McDonogh School
4/5
based on 1 student review(s) | Owings Mills | MD | K-12th | 9th-12th | Coed | 1292 | None |
| Mercersburg Academy
4.2/5
based on 4 student review(s) | Mercersburg | PA | 9th-12th | 9th-PG | Coed | 440 | None |
| Michigan Lutheran High School
| Saginaw | MI | 9th-12th | 9th-12th | Coed | 234 | Lutheran |
| Middlesex School
4.5/5
based on 4 student review(s) | Concord | MA | 9th-12th | 9th-12th | Coed | 394 | None |
| Millbrook School
| Millbrook | NY | 9th-12th | 9th-12th | Coed | 252 | None |
| Milo Adventist Academy
| Days Creek | OR | 9th-12th | 9th-12th | Coed | 135 | Adventists |
| Milton Academy
4.6/5
based on 6 student review(s) | Milton | MA | K-12th | 9th-12th | Coed | 990 | None |
| Milton Hershey School
| Hershey | PA | none | PK-12th | Coed | 1838 | None |
| Miss Hall's School
| Pittsfield | MA | 9th-PG | 9th-PG | Girls only | 195 | None |
| Miss Porter's School
4.1/5
based on 4 student review(s) | Farmington | CT | 9th-12th | 9th-12th | Girls only | 333 | None |
| Missouri Military Academy
| Mexico | MO | none | 6th-PG | Boys only | 255 | None |
| Monte Vista Christian School
| Watsonville | CA | 9th-12th | 9th-12th | Coed | 832 | None |
| Montverde Academy
| Monverde | FL | PK-12th | 7th-12th | Coed | 431 | None |
| Mount Michael Benedictine School
| Elkhorn | NE | 9th-12th | 9th-12th | Boys only | 169 | Roman Catholic |
| New Hampton School
| New Hampton | NH | 9th-PG | 9th-PG | Coed | 300 | None |
| New Mexico Military Institute
| Rosewell | NM | none | 9th-12th | Coed | 893 | None |
| New York Military Academy
| Cornwall-on-Hudson | NY | 7th-12th | 7th-12th | Coed | 141 | None |
| Noble and Greenough School
4.5/5
based on 2 student review(s) | Dedham | MA | 7th-12th | 9th-12th | Coed | 585 | None |
| Northfield Mount Hermon School
4.2/5
based on 9 student review(s) | Mount Hermon | MA | 9th-PG | 9th-PG | Coed | 650 | None |
| Northwest School
| Seattle | WA | 6th-12th | 9th-12th | Coed | 460 | None |
| Northwood School
| Lake Placid | NY | 9th-PG | 9th-PG | Coed | 172 | None |
| Oak Grove Lutheran School
| Fargo | ND | 6th-12th | 9th-12th | Coed | 490 | Lutheran |
| Oak Ridge Military Academy
| Oak Ridge | NC | 7th-12th | 7th-12th | Coed | 110 | None |
| Ojai Valley School
| Ojai | CA | PK-12th | 9th-12th | Coed | 370 | None |
| Oldfields School
| Glencoe | MD | 8th-PG | 8th-PG | Coed | 164 | None |
| Oneida Baptist Institute
| Oneida | KY | 6th-12th | 6th-12th | Coed | 325 | Southern Baptist |
| Oregon Episcopal School
4.4/5
based on 1 student review(s) | Portland | OR | PK-12th | 9th-12th | Coed | 750 | Episcopal |
| Orme School
| Mayer | AZ | 7th-PG | 7th-PG | Coed | 165 | None |
| Peddie School
4.6/5
based on 9 student review(s) | Highstown | NJ | 9th-PG | 9th-PG | Coed | 515 | None |
| Phillips Academy Andover
4.7/5
based on 26 student review(s) | Andover | MA | 9th-PG | 9th-PG | Coed | 1109 | None |
| Phillips Exeter Academy
4.7/5
based on 26 student review(s) | Exeter | NH | 9th-PG | 9th-PG | Coed | 1063 | None |
| Pomfret School
| Pomfret | CT | 9th-PG | 9th-PG | Coed | 350 | Episcopal |
| Portland Lutheran School
| Portland | OR | PK-12th | 8th-12th | Coed | 277 | Lutheran |
| Portsmouth Abbey School
| Portsmouth | RI | 9th-12th | 9th-12th | Coed | 360 | Roman Catholic |
| Proctor Academy
| Andover | NH | 9th-12th | 9th-12th | Coed | 353 | None |
| Putney School
| Putney | VT | 9th-12th | 9th-12th | Coed | 226 | None |
| Rabun Gap-Nacoochee School
| Rabun Gap | GA | 6th-12th | 7th-12th | Coed | 354 | Presbyterian |
| Randolph-Macon Academy
4.6/5
based on 1 student review(s) | Front Royal | VA | 6th-PG | 6th-PG | Coed | 433 | Methodist |
| Riverside Military Academy
| Gainsville | GA | 7th-12th | 7th-12th | Boys only | 400 | None |
| Robert Louis Stevenson School
3.7/5
based on 2 student review(s) | Pebble Beach | CA | K-12th | 9th-12th | Coed | 750 | None |
| Saint John's Preparatory School
| Collegeville | MN | 7th-PG | 9th-PG | Coed | 337 | Roman Catholic |
| Salem Academy
| Winston-Salem | NC | 9th-12th | 9th-12th | Girls only | 161 | None |
| Salisbury School
| Salisbury | CT | 9th-PG | 9th-PG | Boys only | 295 | Episcopal |
| Sandy Spring Friends School
| Sandy Spring | MD | PK-12th | 9th-12th | Coed | 561 | Quakers/Friends |
| Santa Catalina School
5/5
based on 1 student review(s) | Monterey | CA | PK-12th | 9th-12th | Girls only | 548 | Roman Catholic |
| School at Church Farm
| Exton | PA | 7th-12th | 7th-12th | Boys only | 200 | Episcopal |
| Shady Side Academy
| Pittsburgh | PA | PK-12th | 9th-12th | Coed | 925 | None |
| Southwestern Academy
| San Marino | CA | 6th-PG | 6th-PG | Coed | 115 | None |
| St. Albans School
4.6/5
based on 1 student review(s) | Washington | DC | 4th-12th | 9th-12th | Boys only | 575 | Episcopal |
| St. Andrew's School
4.8/5
based on 1 student review(s) | Middletown | DE | none | 9th-12th | Coed | 285 | Episcopal |
| St. Andrew's School
| Boca Raton | FL | K-12th | 9th-12th | Coed | 1155 | Episcopal |
| St. Anne's-Belfield School
| Charlottesville | VA | PK-12th | 9th-12th | Coed | 853 | None |
| St. George's School
3.9/5
based on 3 student review(s) | Middletown | RI | 9th-12th | 9th-12th | Coed | 365 | Episcopal |
| St. James School
| St. James | MD | 8th-12th | 8th-12th | Coed | 215 | Episcopal |
| St. John's Military School
| Salina | KS | none | 7th-12th | Boys only | 220 | None |
| St. John's Northwest Military Academy
| Delafield | WI | 7th-12th | 7th-12th | Boys only | 341 | None |
| St. Mark's School
4.8/5
based on 1 student review(s) | Southborough | MA | 9th-12th | 9th-12th | Coed | 335 | Episcopal |
| St. Mary's Preparatory School
| Orchard Lake | MI | 9th-12th | 9th-12th | Boys only | 540 | Roman Catholic |
| St. Mary's School
| Raleigh | NC | 9th-12th | 9th-12th | Girls only | 282 | Episcopal |
| St. Paul's School
4.7/5
based on 5 student review(s) | Concord | NH | none | 9th-12th | Coed | 541 | Episcopal |
| St. Stephen's Episcopal School
| Austin | TX | 6th-12th | 8th-12th | Coed | 656 | Episcopal |
| Stoneleigh-Burnham School
| Greenfield | MA | 7th-PG | 7th-PG | Girls only | 125 | None |
| Stony Brook School
| Stony Brook | NY | 7th-12th | 7th-12th | Coed | 346 | Non-Denominational Christian |
| Tabor Academy
4.3/5
based on 3 student review(s) | Marion | MA | 9th-12th | 9th-12th | Coed | 505 | None |
| Taft School
4.3/5
based on 3 student review(s) | Watertown | CT | 9th-PG | 9th-PG | Coed | 580 | None |
| Thacher School
4.8/5
based on 5 student review(s) | Ojai | CA | 9th-12th | 9th-12th | Coed | 240 | None |
| Thomas More Prep-Marian High School
| Hays | KS | 9th-12th | 9th-12th | Coed | 212 | Roman Catholic |
| Thornton Academy
| Saco | ME | 6th-12th | 6th-12th | Coed | 1470 | None |
| Trinity-Pawling School
| Pawling | NY | 7th-PG | 9th-PG | Boys only | 320 | Episcopal |
| Valley Forge Military Academy and College
4.2/5
based on 1 student review(s) | Wayne | PA | 7th-12th | 7th-PG | Boys only | 524 | None |
| Villanova Preparatory School
| Ojai | CA | 9th-12th | 9th-12th | Coed | 315 | Roman Catholic |
| Virginia Episcopal School
4.4/5
based on 1 student review(s) | Lynchburg | VA | 9th-12th | 9th-12th | Coed | 268 | Episcopal |
| Washington Academy
| East Machias | ME | 9th-12th | 9th-12th | Coed | 344 | None |
| Wayland Academy
| Beaver Dam | WI | 9th-12th | 9th-12th | Coed | 237 | None |
| Webb School
| Bell Buckle | TN | 6th-12th | 7th-12th | Coed | 300 | None |
| Webb Schools
4.7/5
based on 5 student review(s) | Claremont | CA | 9th-12th | 9th-12th | Coed | 375 | None |
| Wentworth Military Academy
| Lexington | MO | 9th-PG | 9th-PG | Coed | 215 | None |
| Western Mennonite School
| Salem | OR | 6th-12th | 9th-12th | Coed | 245 | Mennonite |
| Western Reserve Academy of Hudson
| Hudson | OH | 9th-PG | 9th-PG | Coed | 385 | None |
| Westminster School
4.4/5
based on 2 student review(s) | Simsbury | CT | 9th-PG | 9th-PG | Coed | 390 | None |
| Westover School
| Middlebury | CT | 9th-12th | 9th-12th | Girls only | 193 | None |
| Westtown School
| Westtown | PA | PK-10th | 9th-12th | Coed | 800 | Quakers/Friends |
| Wilbraham and Monson Academy
| Wilbraham | MA | 6th-12th | 9th-12th | Coed | 381 | None |
| Williston Northampton School
| Easthampton | MA | 7th-PG | 9th-PG | Coed | 540 | None |
| Winchendon School
| Winchendon | MA | 9th-12th | 9th-12th | Coed | 190 | None |
| Woodberry Forest School
| Woodberry Forest | VA | none | 9th-12th | Coed | 385 | None |
| Woodside Priory School
| Portola Valley | CA | 6th-12th | 9th-12th | Coed | 352 | Roman Catholic |
| Worcester Academy
| Worcester | MA | 6th-PG | 9th-PG | Coed | 655 | None |
| Wyoming Seminary College Preparatory School
4.2/5
based on 1 student review(s) | Kingston | PA | PK-12th | 9th-PG | Coed | 780 | Methodist |