| Saldivar, Ricardo | Recreation Leader | Recreation | | |
| Sain, Cristin | Office Assistant | Recreation | | |
| Sabo, Mariah | Marine Naturalist Interpreter | Recreation | | |
| Schiller, Ryan | Maintenance Aide | Public Works Municipal Operations | 949-718-3463 | |
| Sanchez, Yair | Maintenance Worker I | Public Works Municipal Operations | 949-718-3461 | |
| Sanchez, Noe | Maintenance Worker I | Public Works Municipal Operations | 949-644-3084 | |
| Saldivar, Humberto | Concrete Finisher | Public Works Municipal Operations | 949-718-3461 | |
| Saldana Iii, Ernest | Equipment Operator II | Public Works Municipal Operations | 949-718-3461 | |
| Salazar, Juan | Superintendent | Public Works Municipal Operations | 949-718-3460 | |
| Suzuki, Tracy | Records Specialist | Public Works | 949-644-3343 | |
| Stein, Robert | Assistant City Engineer | Public Works | 949-644-3322 | |
| Sowers, Lucy | Public Works Technical Aide | Public Works | 949-644-3348 | |
| Sommers, James | Civil Engineer, Principal | Public Works | 949-644-3326 | |
| Sinacori, Michael | Assistant City Engineer | Public Works | 949-644-3342 | |
| Silva, Robert | Construction Inspection Supervisor | Public Works | 949-270-8131 | |
| Schweitzer, Theresa | Public Works Finance/Administrative Manager | Public Works | 949-644-3335 | |
| Sandefur, Thomas | Assistant City Engineer | Public Works | 949-644-3321 | |
| Sherman, Stuart | Library Clerk II | Library - City | 949-717-3850 | |
| Shafiei, Rokhsan | Library Assistant | Library - City | 949-717-3838 | |
| Sarnowski, Allison | Department Assistant | Library - City | 949-717-3804 | |
