| TRUNG HỌC NỘI TRÚ | STUDENT POPULATION | GRADE | ESL | CITY | STATE / PROVINCE | COUNTRY |
|---|---|---|---|---|---|---|
| Academy at the Lakes | Co-educational | 7-12 | Yes | Tampa, (Tampa) | Florida | USA |
| Antelope Valley Christian School | Co-educational | 7-12 | Yes | Lancaster, (Los Angeles) | California | USA |
| Archbishop Riordan High School | All-boys | 9-12 | Yes | San Francisco, (San Francisco) | California | USA |
| Army and Navy Academy | All-boys | 7-12 | Yes | Carlsbad, (San Diego) | California | USA |
| Ashbury College | Co-educational | 9-12 | Yes | Ottawa, (Ottawa) | Ontario | Canada |
| Ben Lippen School | Co-educational | 9-12 | Yes | Columbia, (Columbia) | South Carolina | USA |
| Burr and Burton Academy | Co-educational | 9-12 | Yes | Manchester, (Albany) | Vermont | USA |
| Camden Catholic High School | Co-educational | 9-12 | Yes | Cherry Hill, (Philadelphia) | New Jersey | USA |
| Chapel Hill-Chauncy Hall School | Co-educational | 9-12, PG | Yes | Waltham, (Boston) | Massachusetts | USA |
| Dunn School | Co-educational | 8-12 | Yes | Los Olivos, (Santa Barbara) | California | USA |
| Ecole d’Humanité | Co-educational | 9-12 | Yes | Hasliberg Goldern, (Zürich) | Switzerland | |
| Erie First Christian Academy | Co-educational | 9-12 | Yes | Erie, (Pittsburgh) | Pennsylvania | USA |
| Florida Preparatory Academy | Co-educational | 7-12 | Yes | Melbourne, (Orlando) | Florida | USA |
| Foxcroft Academy | Co-educational | 9-12 | Yes | Dover-Foxcroft, (Portand) | Maine | USA |
| Fryeburg Academy | Co-educational | 9-12 | Yes | Fryeburg, (Portland) | Maine | USA |
| George Stevens Academy | Co-educational | 9-12 | Yes | Blue Hill, (Bangor) | Maine | USA |
| Gould Academy Maine | Co-educational | 9-12 | Yes | Bethel, (Portland) | Maine | USA |
| Grand River Academy | All-boys | 8-12 | Yes | Austinburg, (Cleveland) | Ohio | USA |
| Great Falls Central Catholic High School | Co-educational | 9-12 | Yes | Great Falls | Montana | USA |
| Grier School | All-girls | 6-12 | Yes | Tyrone, (Pittsburgh) | Pennsylvania | USA |
| High Mowing School | Co-educational | 9-12 | Yes | Wilton, (Manchester) | New Hampshire | USA |
| Hyde School - Maine | Co-educational | 9-12, PG | Yes | Bath, (Portland) | Maine | USA |
| Hyde School - Woodstock | Co-educational | 9-12, PG | Yes | Woodstock, (Hartford) | Connecticut | USA |
| Idyllwild Arts Academy | Co-educational | 9-12, PG | Yes | Idyllwild, (Los Angeles) | California | USA |
| Justin-Siena High School | Co-educational | 9-12 | Yes | Napa, (San Francisco) | California | USA |
| The Knox School | Co-educational | 7-12, PG | Yes | Long Island, (New York City) | New York | USA |
| La Lumiere School | Co-educational | 9-12, PG | Yes | La Porte, (Chicago) | Indiana | USA |
| Lake Mary Preparatory School | Co-educational | 8-12 | Yes | Lake Mary, (Orlando) | Florida | USA |
| Lee Academy | Co-educational | 9-12, PG | Yes | Lee, (Bangor) | Maine | USA |
| Le’man Manhattan Preparatory School | Co-educational | 9-12 | Yes | New York City, (New York City) | New York | USA |
| Lincoln Academy | Co-educational | 9-12 | Yes | Newcastle, (Portland) | Maine | USA |
| Linden Hall | All-girls | 5-12 | Yes | Lititz, (Philadelphia) | Pennsylvania | USA |
| Lowell Whiteman School | Co-educational | 9-12 | Yes | Steamboat Springs, (Denver ) | Colorado | USA |
| Lyndon Institute | Co-educational | 9-12 | Yes | Lyndonville, (Burlington) | Vermont | USA |
| Maine Central Institute | Co-educational | 9-12 | Yes | Pittsfield, (Bangor) | Maine | USA |
| Maine School of Science and Math | Co-educational | 9-12 | Yes | Limestone, (Bangor) | Maine | USA |
| Marianapolis Preparatory School | Co-educational | 9-12 | Yes | Thompson, (Boston) | Connecticut | USA |
| Marine Military Academy | All-boys | 8-12 | Yes | Harlingen, (Houston) | Texas | USA |
| Maui Preparatory Academy | Co-educational | 9-12 | Yes | Lahaina | Hawaii | USA |
| Maur Hill – Mount Academy | Co-educational | 9-12 | Yes | Atchison, (Kansas City) | Kansas | USA |
| Mercyhurst Preparatory School | Co-educational | 9-12 | Yes | Erie, (Pittsburgh) | Pennsylvania | USA |
| Midland School | Co-educational | 9-12 | No | Los Olivos, (Santa Barbara) | California | USA |
| Missouri Military Academy | All-boys | 6-12 | Yes | Mexico, (Kansas City) | Missouri | USA |
| Montverde Academy | Co-educational | 7-12 | Yes | Montverde, (Orlando) | Florida | USA |
| North Broward Preparatory School | Co-educational | 6-12 | Yes | North Broward, (Miami) | Florida | USA |
| Northwood School | Co-educational | 9-12, PG | Yes | Lake Placid | New York | USA |
| Oakwood Friends School | Co-educational | 9-12 | Yes | Poughkeepsie, (New York City) | New York | USA |
| Ojai Valley School | Co-educational | 9-12 | Yes | Ojai, (Los Angeles) | California | USA |
| Orme School | Co-educational | 8-11 | Yes | Mayer, (Phoenix) | Arizona | USA |
| Perkiomen School | Co-educational | 7-12 | Yes | Pennsburg, (Philadelphia) | Pennsylvania | USA |
| The Phelps School | All-boys | 7-12, PG | Yes | Philadelphia, (Philadelphia) | Pennsylvania | USA |
| Pope John XXIII High School | Co-educational | 9-12 | Yes | Everett, (Boston) | Massachusetts | USA |
| Presentation of Mary Academy | Co-educational | 9-12 | Yes | Methuen, (Boston) | Massachusetts | USA |
| Rancho Solano Preparatory Schools | Co-educational | 8-12 | Yes | Glendale, (Phoenix) | Arizona | USA |
| Ribét Academy College Prep School | Co-educational | 9-12 | Yes | Los Angeles, (Los Angeles) | California | USA |
| Saint Bede Academy | Saint Bede Academy | 9-12 | No | Lasalle-Peru, (Chicago) | Illinois | USA |
| Saint Paul Lutheran High School | Co-educational | 9-12 | Yes | Concordia, (Kansas City) | Missouri | USA |
| Salem Academy | All-girls | 9-12 | Yes | Winston-Salem, (Greensboro) | North Carolina | USA |
| South Kent School | All-boys | 9-12, PG | Yes | Kent, (Hartford) | Connecticut | USA |
| Squaw Valley Academy | Co-educational | 8-12 | Yes | Olympic Valley, (San Francisco) | California | USA |
| St. Andrew’s-Sewanee School | Co-educational | 6-12 | Yes | Sewanee, (Chattanooga) | Tennessee | USA |
| St. Croix Lutheran High School | Co-educational | 6-12 | Yes | West St. Paul, (Minneapolis) | Minnesota | USA |
| St. Johnsbury Academy | Co-educational | 9-12 | Yes | St. Johnsbury, (Burlington) | Vermont | USA |
| St. Thomas More School | All-boys | 8-12 | Yes | Oakdale, (New Haven) | Connecticut | USA |
| Stoneleigh-Burnham School | All-girls | 7-12, PG | Yes | Greenfield, (Springfield) | Massachusetts | USA |
| The Storm King School | Co-educational | 8-12, PG | Yes | Cornwall-On-Hudson, (New York City) | New York | USA |
| The Village School | Co-educational | 9-12 | Yes | Houston, (Houston) | Texas | USA |
| Thornton Academy | Co-educational | 6-12 | Yes | Saco, (Portland) | Maine | USA |
| TMI The Episcopal School of Texas | Co-educational | 6-12 | No | San Antonio, (San Antonio) | Texas | USA |
| Valley Forge Military Academy | All-boys | 9-12 | Yes | Wayne, (Philadelphia) | Pennsylvania | USA |
| Verde Valley School | Co-educational | 9-12 | No | Sedona, (Phoenix) | Arizona | USA |
| Wasatch Academy | Co-educational | 8-12 | Yes | Mount Pleasant, (Provo) | Utah | USA |
| Washington Academy | Co-educational | 9-12, PG | Yes | East Machias, (Bangor) | Maine | USA |
| Wayland Academy | Co-educational | 9-12 | Yes | Beaver Dam, (Madison) | Wisconsin | USA |
| West Nottingham Academy | Co-educational | 9-12 | Yes | Colora, (Baltimore) | Maryland | USA |
| Wilbraham & Monson Academy | Co-educational | 9-12 | Yes | Wilbraham, (Boston) | Massachusetts | USA |
| Winchendon School | Co-educational | 9-12 | Yes | Winchendon, (Boston) | Massachusetts | USA |
| Windermere Prep School | Co-educational | 8-12 | Yes | Windermere, (Orlando) | Florida | USA |
| Woodstock Academy | Co-educational | 9-12 | Yes | Woodstock, (Boston) | Connecticut | USA |
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