| Speier, Elijah | Lifeguard II | Fire | | |
| Spiker, Chad | Fire Staff Captain, Ems/Training | Fire | 949-644-3104 | |
| Springer, Charles | Management Analyst, Senior | Public%20Works%20Municipal%20Operations | 949-718-3466 | |
| Stade, Sebastian | Lifeguard I | Fire | | |
| Stade, Strider | Lifeguard I | Fire | | |
| Stadlman, Ryan | IT Analyst, Senior | City%20Manager | 949-644-3189 | |
| Stahl, Christopher | Recreation Leader, Senior | Recreation | | |
| Stanley, Matthew | Harbor Services Worker, Lead | Harbor%20Department | | |
| Stansfield, Candice | Recreation Leader, Senior | Recreation | | |
| Staples, Robert Lee | Senior Pool Lifeguard | Recreation | | |
| Starn, Grady | Lifeguard I | Fire | | |
| Stein, Robert | Assistant City Engineer | Public%20Works | 949-644-3322 | |
| Stinson, Mariah | Administrative Assistant | Recreation | 949-644-3158 | |
| Stocks, Nicholas | Fire Battalion Chief | Fire | 949-644-3363 | |
| Strack, James | Fire Captain 112 Hours | Fire | 949-644-3104 | |
| Stribling, Jeffrey | Fire Engineer 112 Hour | Fire | 949-644-3355 | |
| Strozier, Savannah | Recreation Coordinator, Assistant | Recreation | | |
| Suarez, Christian | Facilities Maintenance Worker II | Recreation | 949-644-3244 | |
| Sugiyama, James | Utilities Specialist, Senior | Utilities | 949-718-3420 | |
| Sullivan, Jake | Lifeguard I | Fire | | |
