| Houston Learning Academy | 0.0 |
Regular elementary or secondary | 9-12 | 24 | 8.0 | Nonsectarian |
| St Agnes Academy School | 5.1 |
Regular elementary or secondary | 9-12 | 840 | 13.6 | Roman Catholic |
| Strake Jesuit College Prep School | 5.1 |
Regular elementary or secondary | 9-12 | 891 | 15.3 | Roman Catholic |
| Alexander-smith Academy | 6.4 |
Regular elementary or secondary | 9-12 | 70 | 4.4 | Nonsectarian |
| The Tenney School | 7.6 |
Alternative/other | 7-12 | 55 | 3.8 | Nonsectarian |
| Oak Brook Baptist | 7.9 |
Regular elementary or secondary | 9-12 | 47 | 23.5 | Baptist |
| Episcopal High School | 8.5 |
Regular elementary or secondary | 9-12 | 629 | 8.6 | Episcopal |
| Memorial Private High School | 9.8 |
Alternative/other | 9-12 | 24 | 4.8 | Nonsectarian |
| Houston Christian High School | 12.6 |
Regular elementary or secondary | 9-12 | 453 | 9.5 | Christian (no specific denomination) |
| St Thomas High School | 13.0 |
Regular elementary or secondary | 9-12 | 679 | 14.4 | Roman Catholic |
| Houston Learning Academy | 15.1 |
Alternative/other | 9-12 | 48 | 5.8 | Nonsectarian |
| The Houston Learning Academy - Katy Campus | 15.1 |
Regular elementary or secondary | 9-12 | 19 | 1.4 | Nonsectarian |
| Incarnate Word Academy | 15.2 |
Regular elementary or secondary | 9-12 | 249 | 11.9 | Roman Catholic |
| Lutheran High North | 15.4 |
Regular elementary or secondary | 9-12 | 288 | 15.9 | Lutheran Church - Missouri Synod |
| Mount Carmel High School | 15.8 |
Regular elementary or secondary | 9-12 | 195 | 9.0 | Roman Catholic |
| Pope John Xxiii High School | 16.7 |
Regular elementary or secondary | 9-12 | 206 | 9.4 | Roman Catholic |
| St Pius X High School | 17.2 |
Regular elementary or secondary | 9-12 | 707 | 12.4 | Roman Catholic |
| American Academy | 23.1 |
Regular elementary or secondary | 9-12 | 8 | 8.0 | Nonsectarian |
| Houston Learning Academy - North Campus | 23.5 |
Regular elementary or secondary | 9-12 | 27 | 9.0 | Nonsectarian |
