| Business | Phone |
| City Hall 23161 Lake Center Dr # 100, Lake Forest 92630 | (949) 707-5583 |
| Lake Forest City Hall 25550 Commercentre Dr # 100, Lake Forest 92630 | (949) 461-3400 |
| Lake Forest City Clerk Dept 25550 Commercentre Dr # 100, Lake Forest 92630 | (949) 461-3420 |
| Lake Forest City Manager 23161 Lake Center Dr, Lake Forest 92630 | (949) 461-3410 |
| Lake Forest City Manager 25550 Commercentre Dr, Lake Forest 92630 | (949) 461-3410 |