| Business | Phone |
| Mt Calvary Lutheran Church 27415 School Rd, Crest Park 92326 | (909) 337-1412 |
| Our Lady Of Lake Catholic Ch 27627 Rim Of The World Dr, Crest Park 92326 | (909) 337-2333 |
| Our Lady Of The Lake Parish 27613 Rim Of The World Dr, Crest Park 92326 | (909) 337-4884 |