| Cistercian Preparatory School
| Irving | TX | 5th-12th | none | Boys only | 343 | Roman Catholic |
| Jesuit College Preparatory School
| Dallas | TX | 9th-12th | none | Boys only | 1030 | Roman Catholic (Jesuit) |
| St. Mark's School of Texas
4.7/5
based on 2 student review(s) | Dallas | TX | 1st-12th | none | Boys only | 820 | None |
| St. Thomas High School
| Houston | TX | 9th-12th | none | Boys only | 682 | Roman Catholic |
| Strake Jesuit College Preparatory
| Houston | TX | 9th-12th | none | Boys only | 868 | Roman Catholic (Jesuit) |