| Business | Phone |
| City Shop 75 Lawrenceville St, Mcdonough 30253 | (770) 957-9716 |
| Mc Donough Main Street Program 5 Griffin St, Mcdonough 30253 | (770) 898-9868 |
| Mc Donough Sewer Plant 877 Decatur Rd, Mcdonough 30253 | (770) 957-9791 |
| Mc Donough Sewer Plant 88 Keys Ferry St, Mcdonough 30253 | (770) 957-9791 |
| Mc Donough Water Plant 8 Dogwood Ln, Mcdonough 30253 | (770) 957-4366 |