| Business | Phone |
| Duluth Public Library 520 W Superior St, Duluth 55802 | (218) 723-3800 |
| Duluth Public Library 5830 Grand Ave, Duluth 55807 | (218) 723-3801 |
| Environmental Protection Agcy 6201 Congdon Blvd, Duluth 55804 | (218) 720-5500 |
| Mt Royal Branch Library 105 Mount Royal Shopping Cir, Duluth 55803 | (218) 723-3844 |
| Mt Royal Branch Library 1600 Woodland Ave # 105, Duluth 55803 | (218) 723-3844 |
| University Mn-Duluth Library 416 Library Dr, Duluth 55812 | (218) 726-8102 |