| Business | Phone |
| Bahai Faith Po Box 159, Onamia 56359 | (320) 532-3611 |
| Bethany Lutheran Church 500 Lindquist St W, Onamia 56359 | (320) 532-3366 |
| Christian Missionary Alliance 304 Oak St S, Onamia 56359 | (320) 532-3241 |
| Crosier Community 104 Crosier Dr, Onamia 56359 | (320) 532-3103 |
| Holy Cross Catholic Church 102 Crosier Dr, Onamia 56359 | (320) 532-3122 |
| Kingdom Hall-Jehovah's Witness 400 Lindquist St W, Onamia 56359 | (320) 532-4010 |
| Little Flower Mission 43600 Hwy 169, Onamia 56359 | (320) 532-3601 |
| Onamia United Methodist Church Po Box 146, Onamia 56359 | (320) 532-3150 |