| Business | Phone |
| Assembly Of God Church 414 E Main St, Sidney 59270 | (406) 433-2550 |
| Bible Baptist Church 502 S Central Ave, Sidney 59270 | (406) 433-3706 |
| Trinity Lutheran Church 214 Lincoln Ave S, Sidney 59270 | (406) 433-2050 |
| St Matthew's Catholic Church 219 7th St Se, Sidney 59270 | (406) 433-1068 |
| St Matthew's Parish Ctr 310 7th St Se, Sidney 59270 | (406) 433-2510 |
| Carpenter's Church 509 2nd St Ne, Sidney 59270 | (406) 433-7773 |
| Church Of Christ 905 4th St Sw, Sidney 59270 | (406) 433-3456 |
| Church Of Jesus Christ Of Lds 1215 5th St Sw, Sidney 59270 | (406) 433-3250 |
| Sidney Church Of The Nazarene 606 9th St Sw, Sidney 59270 | (406) 488-1956 |
| Sidney Lutheran Brethren Chr Madison Ln & Red River Dramp;, Sidney 59270 | (406) 433-2209 |
| Ebenezer Congregational Church 118 4th Ave Nw, Sidney 59270 | (406) 433-2654 |
| Faith Alliance Church 301 E Main St, Sidney 59270 | (406) 433-1112 |
| Federated Church-Forsyth 1180 Cedar Ave, Sidney 59270 | (406) 346-7767 |
| Pella Lutheran Church 418 W Main St, Sidney 59270 | (406) 433-3350 |
| Lonsdale United Methodist Chr 205 3rd Ave Se, Sidney 59270 | (406) 433-3110 |
| Jehovah's Witnesses 2301 3rd St Nw, Sidney 59270 | (406) 488-4659 |