| Business | Phone |
| Dunn Filtering Plant 805 W E St, Erwin 28339 | (910) 897-5129 |
| Erwin Building Inspector 100 W F St, Erwin 28339 | (910) 897-5648 |
| Erwin City Adm 100 W F St, Erwin 28339 | (910) 897-5140 |
| Erwin City Waste Treatment 411 S 19th St, Erwin 28339 | (910) 897-5022 |
| Erwin Town Office 100 W F St, Erwin 28339 | (910) 897-6663 |