| Avon Old Farms School
| Avon | CT | 9th-12th | 9th-12th | Boys only | 405 | None |
| Cathedral High School
| Springfield | MA | 9th-12th | none | Coed | 491 | Roman Catholic |
| Chase Collegiate School
| Waterbury | CT | PK-12th | none | Coed | 451 | None |
| 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 |
| East Catholic High School
| Manchester | CT | 9th-12th | none | Coed | 684 | Roman Catholic |
| Ethel Walker School
4.6/5
based on 1 student review(s) | Simsbury | CT | 6th-12th | 9th-12th | Girls only | 269 | None |
| Gunnery School
3.6/5
based on 1 student review(s) | Washington | CT | 9th-PG | 9th-PG | Coed | 300 | None |
| Holy Cross High School
| Waterbury | CT | 9th-12th | none | Coed | 760 | Roman Catholic |
| Holyoke Catholic High School
| Chicopee | MA | 9th-12th | none | Coed | 302 | Roman Catholic |
| Kingswood Oxford School
| West Hartford | CT | 6th-PG | none | Coed | 496 | None |
| Loomis Chaffee School
4.1/5
based on 4 student review(s) | Windsor | CT | 9th-PG | 9th-PG | Coed | 672 | None |
| Mercy High School
| Middletown | CT | 9th-12th | none | Girls only | 700 | Roman Catholic |
| Miss Porter's School
4.1/5
based on 4 student review(s) | Farmington | CT | 9th-12th | 9th-12th | Girls only | 333 | None |
| Northwest Catholic High School
| West Hartford | CT | 9th-12th | none | Coed | 653 | Roman Catholic |
| St. Mary High School
| Westfield | MA | 9th-12th | none | Coed | 140 | Roman Catholic |
| St. Paul Catholic High School
| Briston | CT | 9th-12th | none | Coed | 300 | Roman Catholic |
| Taft School
4.3/5
based on 3 student review(s) | Watertown | CT | 9th-PG | 9th-PG | Coed | 580 | 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 |
| 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 |
| Xavier High School
| Middletown | CT | 9th-12th | none | Boys only | 873 | Roman Catholic |