| Sugiyama, James | Utilities Specialist, Senior | Utilities | 949-718-3420 | |
| Silva, Anthony | Utilities Specialist | Utilities | | |
| Sanchez-Valencia, Alex | Utilities Specialist, Senior | Utilities | 949-718-4418 | |
| Suarez, Christian | Facilities Maintenance Worker II | Recreation | 949-644-3244 | |
| Strozier, Savannah | Recreation Leader | Recreation | | |
| Stinson, Mariah | Administrative Assistant | Recreation | 949-644-3158 | |
| Stafford, Jack | Office Assistant | Recreation | 949-644-3162 | |
| Soto, Felipe | Recreation Leader, Senior | Recreation | | |
| Soltes, Dennis | Recreation Leader | Recreation | | |
| Smith, Riley | Recreation Leader | Recreation | | |
| Skibby, Kili | Pool Swim Instructor | Recreation | | |
| Sinacori, Lorelai | Pool Swim Instructor | Recreation | | |
| Sinacori, Georgia | Pool Swim Instructor Trainee | Recreation | | |
| Silva, Robert | Recreation Leader, Senior | Recreation | | |
| Serbeniuk, Gary | Marine Naturalist Interpreter | Recreation | | |
| Sepulveda, Skylar | Pool Swim Instructor | Recreation | | |
| Schmillen, Justin | Recreation & Senior Services Manager | Recreation | 949-644-3160 | |
| Schilling, Chloe | Pool Swim Instructor | Recreation | | |
| Schaeffer, Lauren | Recreation Leader | Recreation | | |
| Salisbury, Mara | Marine Naturalist Interpreter | Recreation | | |
