| Business | Phone |
| Belle Prairie Baptist Church Rr 2 Box 99, Dahlgren 62828 | (618) 648-2265 |
| Dahlgren Baptist Church Rr 1 Box 90, Dahlgren 62828 | (618) 736-2313 |
| Dahlgren First Baptist Church Po Box 86, Dahlgren 62828 | (618) 736-2081 |
| Dahlgren United Methodist Chr Dahlgren 62828 | (618) 736-2386 |
| St John's Hall Main St, Dahlgren 62828 | (618) 736-2878 |