| Kolbe Cathedral High School | 4.0 |
Regular elementary or secondary | 9-12 | 323 | 14.7 | Roman Catholic |
| Fairfield College Preparatory | 4.3 |
Regular elementary or secondary | 9-12 | 892 | 15.2 | Roman Catholic |
| Center Of Progressive Education | 4.9 |
Special education | 9-12 | 27 | 5.4 | Nonsectarian |
| St Joseph High School | 4.9 |
Regular elementary or secondary | 9-12 | 836 | 18.0 | Roman Catholic |
| Bridgeport International Academy | 4.9 |
Special program emphasis | 9-12 | 61 | 8.7 | Christian (no specific denomination) |
| The Phoenix School | 6.4 |
Special education | 7-12 | 20 | 3.0 | Nonsectarian |
| Seton Academy | 7.1 |
Special education | 9-12 | 10 | 3.3 | Nonsectarian |
| Academy Of Our Lady Of Mercy, Lauralton Hall | 9.6 |
Regular elementary or secondary | 9-12 | 432 | 11.7 | Roman Catholic |
| The Foundation School | 11.6 |
Special education | 9-12 | 46 | 3.5 | Nonsectarian |
| Beth Chana Academy High School For Girls | 13.4 |
Regular elementary or secondary | 9-12 | 15 | 3.5 | Jewish |
| Immaculate High School | 15.2 |
Regular elementary or secondary | 9-12 | 406 | 10.2 | Roman Catholic |
| Notre Dame High School | 15.5 |
Regular elementary or secondary | 9-12 | 671 | 14.8 | Roman Catholic |
| Hopkins School | 15.8 |
Special program emphasis | 7-12 | 679 | 5.4 | Nonsectarian |
| Yeshiva Gedolah Rabbinical Institute Of New Engld | 16.9 |
Special program emphasis | 9-11 | 57 | 8.9 | Jewish |
| Rabbinical Institute Of New England | 16.9 |
Alternative/other | 9-12 | 80 | 10.7 | Jewish |
| Trinity Catholic High School | 17.5 |
Regular elementary or secondary | 9-12 | 542 | 14.7 | Roman Catholic |
| Cedarhurst School | 18.6 |
Special education | 7-12 | 47 | 5.0 | Nonsectarian |
| Yeshiva Bais Binyomin | 18.8 |
Regular elementary or secondary | 9-12 | 60 | 7.5 | Jewish |
| Sacred Heart Academy | 19.0 |
Regular elementary or secondary | 9-12 | 492 | 12.2 | Roman Catholic |
| Westover School | 22.0 |
Regular elementary or secondary | 9-12 | 194 | 6.4 | Nonsectarian |
| Holy Cross High School | 23.2 |
Regular elementary or secondary | 9-12 | 800 | 14.2 | Roman Catholic |
