| Main Phone | 312-421-5900 |
| Fax | 312-421-7124 |
| Attendance | 312-421-6435 |
| Dean's Office | 312-432-8313 |
| Prefects' Office | 312-432-8448 |
| Nurse | 312-432-8331 |
| President | president@ignatius.org |
| Admissions | admissions@ignatius.org |
| Media Relations | communications@ignatius.org |
| Webmaster | webmaster@ignatius.org |