| Stade, Strider | Lifeguard I | Fire | | |
| Stade, Sebastian | Lifeguard I | Fire | | |
| Springer, Charles | Management Analyst, Senior | Public Works | 949-718-3466 | |
| Spiker, Chad | Fire Staff Captain, Ems/Training | Fire | 949-644-3104 | |
| Speier, Elijah | Lifeguard II | Fire | | |
| Spangler, Linnea | Senior Pool Lifeguard | Recreation & Senior Services | | |
| Soto Valladolid, Felipe | Recreation Coordinator | Recreation & Senior Services | 949-644-3163 | |
| Soto Valladolid, Barbara | Recreation Coordinator | Recreation & Senior Services | 949-718-1861 | |
| Sommers, James | Transportation Manager/City Traffic Engineer | Public Works | 949-644-3326 | |
| Sodergren, Michael | Firefighter Paramedic 112 Hour (Before 1-1-2016) | Fire | 949-644-3355 | |
| Snyder, Ryan | Recreation Leader, Senior | Recreation & Senior Services | | |
| Smouse, Trevor | Management Analyst, Senior | Public Works | 949-644-3325 | |
| Smith, Troy | Lifeguard I | Fire | | |
| Smith, Trent | Lifeguard I | Fire | | |
| Smith, Riley | Recreation Leader, Senior | Recreation & Senior Services | | |
| Smith, Eric | Lifeguard III | Fire | | |
| Smith, Christina | Literacy Coordinator | Library - City | 949-717-3874 | |
| Smith, Braden | Lifeguard I | Fire | | |
| Smith, Benjamin | Lifeguard Cadet | Fire | | |
| Smith, Annika | Recreation Leader, Senior | Recreation & Senior Services | | |
