| Business | Phone |
| Assembly Of God Church 503 3rd Ave S, Fairfield 59436 | (406) 467-2713 |
| United Church Of Christ 605 1st Rd Ne, Fairfield 59436 | (406) 467-2466 |
| St John Lutheran Church Po Box 241, Fairfield 59436 | (406) 467-3325 |
| St John's Catholic Church Fairfield 59436 | (406) 467-2481 |
| St Paul Lutheran Church 451 Forrest Lane Ne, Fairfield 59436 | (406) 467-3180 |
| Church Of Jesus Christ Of Lds Old Highway 89, Fairfield 59436 | (406) 467-2383 |
| Fairfield Faith Bible Church 606 Central Ave, Fairfield 59436 | (406) 467-2544 |
| Grace Lutheran Church 212 5th Rd Ne, Fairfield 59436 | (406) 467-2277 |