| Business | Phone |
| Calvary Chapel Conference Center 26409 Highway 189, Twin Peaks 92391 | (909) 337-6116 |
| Calvary Chapel-Lake Arrowhead 101 Grandview Rd, Twin Peaks 92391 | (909) 337-2468 |
| Jehovah's Witnesses 451 Grandview Rd, Twin Peaks 92391 | (909) 337-5954 |
| Twin Peaks Community Church 26032 Highway 189, Twin Peaks 92391 | (909) 337-3011 |