Note: A name in bold indicates a department head or main contact.
| Department | Location | Phone | Fax | Department Head/Main Contact |
| Administrative & Dean's Office | 2nd floor, H-T Memorial Library | (504)865-5131 | (504)865-6773 | Miriam Espinosa |
| Architecture Library | 2nd floor, Richardson Memorial Hall | (504)865-5391 | (504)862-8966 | Alan Velasquez |
| Associate Dean | 3rd floor, H-T Memorial Library | (504)865-5679 | (504)865-6773 | Andy Corrigan |
| Circulation | 1st floor, H-T Memorial Library | (504)865-5689 | (504)862-8967 | Hayden Battle |
| Dean | 2nd floor, H-T Memorial Library | (504)865-5131 | (504)865-6773 | Lance Query |
| Digital Services | 4th floor, H-T Memorial Library | (504)247-1804 | (504)314-7785 | Kate Montgomery |
| Hogan Jazz Archive | 3rd floor, Jones Hall | (504)865-5688 | (504)865-5761 | Bruce Raeburn |
| Interlibrary Loan | 2nd floor, H-T Memorial Library | (504)865-5610 | (504)862-8980 | Hayden Battle |
| Latin American Library | 4th floor, H-T Memorial Library | (504)865-5681 | (504)862-8970 | Hortensia Calvo |
| Mail Room | 1st floor, H-T Memorial Library | (504)865-5698 | Miriam Espinosa | |
| Manuscripts | 2nd floor, Jones Hall | (504)865-5685 | (504)865-5761 | Leon Miller |
| Music & Media Library | 4th Floor, H-T Memorial Library | (504)865-5642 | Leonard Bertrand | |
| Public Services Division | 1st floor, H-T Memorial Library | (504)314-7822 | (504)862-8967 | Anne Houston |
| Southeastern Architectural Archive | 3rd floor, Jones Hall | (504)865-5699 | (504)865-5761 | Keli Rylance |
| Special Collections | Jones Hall | (504)865-5685 | (504)865-5761 | Wilbur Meneray |
| Systems | 4th floor, H-T Memorial Library | (504)865-5131 | (504)314-7785 | Lewis Cartee |
| Technical Services Division | 1st floor, H-T Memorial Library | (504)865-5692 | (504)862-8556 | Donna Cook |
| Technical Services Division | 1st floor, H-T Memorial Library | (504)865-5692 | (504)862-8556 | Donna Cook |