| Holy Cross High School | 3.0 |
Regular elementary or secondary | 9-12 | 800 | 14.2 | Roman Catholic |
| Sacred Heart High School | 4.8 |
Regular elementary or secondary | 9-12 | 455 | 17.6 | Roman Catholic |
| The Taft School | 5.2 |
Regular elementary or secondary | 9-12 | 576 | 7.7 | Nonsectarian |
| Sacred Heart Academy | 15.0 |
Regular elementary or secondary | 9-12 | 492 | 12.2 | Roman Catholic |
| Canterbury School | 15.5 |
Regular elementary or secondary | 9-12 | 348 | 6.3 | Roman Catholic |
| Touchstone School | 15.9 |
Special education | 7-12 | 26 | 4.1 | Nonsectarian |
| The Forman School | 16.3 |
Special education | 9-12 | 180 | 3.8 | Nonsectarian |
| St Paul Catholic High School | 16.4 |
Regular elementary or secondary | 8-12 | 278 | 10.6 | Roman Catholic |
| Hopkins School | 16.4 |
Special program emphasis | 7-12 | 679 | 5.4 | Nonsectarian |
| Beth Chana Academy High School For Girls | 16.9 |
Regular elementary or secondary | 9-12 | 15 | 3.5 | Jewish |
| Cedarhurst School | 17.0 |
Special education | 7-12 | 47 | 5.0 | Nonsectarian |
| Choate Rosemary Hall | 17.1 |
Regular elementary or secondary | 9-12 | 846 | 8.1 | Nonsectarian |
| Yeshiva Gedolah Rabbinical Institute Of New Engld | 17.2 |
Special program emphasis | 9-11 | 57 | 8.9 | Jewish |
| Rabbinical Institute Of New England | 17.2 |
Alternative/other | 9-12 | 80 | 10.7 | Jewish |
| Connecticut Junior Republic | 17.9 |
Special education | 7-12 | 77 | 3.7 | Nonsectarian |
| Notre Dame High School | 18.5 |
Regular elementary or secondary | 9-12 | 671 | 14.8 | Roman Catholic |
| St Joseph High School | 18.6 |
Regular elementary or secondary | 9-12 | 836 | 18.0 | Roman Catholic |
| Immaculate High School | 19.8 |
Regular elementary or secondary | 9-12 | 406 | 10.2 | Roman Catholic |
| Miss Porter's School | 20.3 |
Regular elementary or secondary | 9-12 | 328 | 8.4 | Nonsectarian |
| The Foundation School | 20.5 |
Special education | 9-12 | 46 | 3.5 | Nonsectarian |
| South Kent School | 20.9 |
Regular elementary or secondary | 9-12 | 145 | 5.4 | Episcopal |
| Academy Of Our Lady Of Mercy, Lauralton Hall | 21.2 |
Regular elementary or secondary | 9-12 | 432 | 11.7 | Roman Catholic |
| Notre Dame Catholic High School | 22.0 |
Regular elementary or secondary | 9-12 | 573 | 15.4 | Roman Catholic |
| Avon Old Farms School | 22.9 |
Regular elementary or secondary | 9-12 | 400 | 5.9 | Nonsectarian |
| Kent School | 23.0 |
Regular elementary or secondary | 9-12 | 574 | 7.8 | Episcopal |
| The Phoenix School | 23.1 |
Special education | 7-12 | 20 | 3.0 | Nonsectarian |
| Mercy High School | 23.2 |
Regular elementary or secondary | 9-12 | 694 | 13.2 | Roman Catholic |
| Center Of Progressive Education | 23.5 |
Special education | 9-12 | 27 | 5.4 | Nonsectarian |
| Kolbe Cathedral High School | 24.4 |
Regular elementary or secondary | 9-12 | 323 | 14.7 | Roman Catholic |
| The Marvelwood School | 24.7 |
Regular elementary or secondary | 9-12 | 145 | 3.8 | Nonsectarian |
