| Business | Phone |
| Mille Lacs Academy 100 Crosier Dr # 1, Onamia 56359 | (320) 532-4005 |
| Mothers Against Drunk Driving Po Box 721, Onamia 56359 | (320) 532-3665 |
| New Trails Group Home 312 Elm St S, Onamia 56359 | (320) 532-8043 |
| Onamia Food Pantry 502 E Main St, Onamia 56359 | (320) 532-7665 |