| Business | Phone |
| Woodland Valley Church 225 Crowe Ave, Mars 16046 | (724) 625-4500 |
| Christian Community Chr-Mars 558 Pittsburgh St, Mars 16046 | (724) 625-3230 |
| Mars Alliance Church 997 Route 228, Mars 16046 | (724) 776-9400 |
| Mars United Methodist Church 525 Pittsburgh St, Mars 16046 | (724) 625-1488 |
| Mars United Presbyterian Chr 232 Crowe Ave, Mars 16046 | (724) 625-1365 |
| Old Union Presbyterian Church 200 Union Church Rd, Mars 16046 | (724) 538-8672 |
| Serbian Orthodox Diocese 138 Carriage Hill Dr, Mars 16046 | (724) 772-8866 |
| St Christopher's Episcopal Chr 925 Sheraton Dr, Mars 16046 | (724) 776-1770 |
| St John Lutheran Church 420 Beaver St, Mars 16046 | (724) 625-1830 |
| St Kilian Church 205 Clark St, Mars 16046 | (724) 625-1665 |