| Immaculate High School | 0.0 |
Regular elementary or secondary | 9-12 | 406 | 10.2 | Roman Catholic |
| Canterbury School | 14.3 |
Regular elementary or secondary | 9-12 | 348 | 6.3 | Roman Catholic |
| Notre Dame Catholic High School | 15.2 |
Regular elementary or secondary | 9-12 | 573 | 15.4 | Roman Catholic |
| St Joseph High School | 16.9 |
Regular elementary or secondary | 9-12 | 836 | 18.0 | Roman Catholic |
| Seton Academy | 17.6 |
Special education | 9-12 | 10 | 3.3 | Nonsectarian |
| Fairfield College Preparatory | 18.3 |
Regular elementary or secondary | 9-12 | 892 | 15.2 | Roman Catholic |
| Kolbe Cathedral High School | 19.2 |
Regular elementary or secondary | 9-12 | 323 | 14.7 | Roman Catholic |
| Westover School | 19.8 |
Regular elementary or secondary | 9-12 | 194 | 6.4 | Nonsectarian |
| Center Of Progressive Education | 20.0 |
Special education | 9-12 | 27 | 5.4 | Nonsectarian |
| Bridgeport International Academy | 20.1 |
Special program emphasis | 9-12 | 61 | 8.7 | Christian (no specific denomination) |
| Trinity Catholic High School | 20.4 |
Regular elementary or secondary | 9-12 | 542 | 14.7 | Roman Catholic |
| South Kent School | 20.5 |
Regular elementary or secondary | 9-12 | 145 | 5.4 | Episcopal |
| The Phoenix School | 21.2 |
Special education | 7-12 | 20 | 3.0 | Nonsectarian |
| Holy Cross High School | 22.5 |
Regular elementary or secondary | 9-12 | 800 | 14.2 | Roman Catholic |
| Yeshiva Bais Binyomin | 22.6 |
Regular elementary or secondary | 9-12 | 60 | 7.5 | Jewish |
| The Taft School | 22.9 |
Regular elementary or secondary | 9-12 | 576 | 7.7 | Nonsectarian |
| Academy Of Our Lady Of Mercy, Lauralton Hall | 22.9 |
Regular elementary or secondary | 9-12 | 432 | 11.7 | Roman Catholic |
| Beth Chana Academy High School For Girls | 23.7 |
Regular elementary or secondary | 9-12 | 15 | 3.5 | Jewish |
| Kent School | 24.0 |
Regular elementary or secondary | 9-12 | 574 | 7.8 | Episcopal |
| The Foundation School | 24.2 |
Special education | 9-12 | 46 | 3.5 | Nonsectarian |
| Sacred Heart High School | 24.5 |
Regular elementary or secondary | 9-12 | 455 | 17.6 | Roman Catholic |
