| Roll number | 65190W |
| Address | The Mall, Sligo |
| Principal | Mr. Michael David Hall |
| Website | www.sligogrammarschool.org |
| admin@sligogrammarschool.org | |
| Phone | 0719145010 |
| Ethos | Church Of Ireland |
| Gender | Mixed |
| Enrolment total | 427 |
| Enrolment boys | 252 |
| Enrolment girls | 175 |