| Business | Phone |
| Wadena City Wastewater Trtmnt 708 Sunnybrook Rd, Wadena 56482 | (218) 631-7715 |
| Wadena City Wastewater Trtmnt Airport Rd, Wadena 56482 | (218) 631-7715 |
| Wadena Development Auth 222 2nd St Se, Wadena 56482 | (218) 631-7723 |
| Wadena Light & Water Plant 104 Jefferson St N, Wadena 56482 | (218) 631-7712 |