| Cardenaz, Felipe | Maintenance Worker I | Public Works Municipal Operations | 949-718-3463 | |
| Campos, Luis | Maintenance Aide | Public Works Municipal Operations | 949-644-3063 | |
| Cairney, Stuart | Equipment Operator I | Public Works Municipal Operations | 949-718-3463 | |
| Cooke, Abigail | Civil Engineer, Associate | Public Works | 949-644-3323 | |
| Cho, Kathryne | Civil Engineer, Associate | Public Works | 949-644-3014 | |
| Chhouk, Socheata | Civil Engineer, Associate | Public Works | 949-644-3346 | |
| Castanon, Alfredo | Engineer, Associate | Public Works | 949-644-3314 | |
| Carpenter, Patricia | Civil Engineer, Associate | Public Works | 949-644-3344 | |
| Craig, Elizabeth | Library Assistant | Library - City | 949-717-3861 | |
| Cox, Douglas | Library Page | Library - City | 949-717-3851 | |
| Costa, Richard | Library Clerk I | Library - City | 949-717-3838 | |
| Chiu, Emily | Library Clerk II | Library - City | 949-717-3854 | |
| Chapel, Christine | Librarian I | Library - City | 949-717-3832 | |
| Chalmers, Noel | Library Page | Library - City | 949-717-3838 | |
| Cornell, Lauryn | Department Assistant | Human Resources | 949-718-1832 | |
| Cosylion, Matthew | Code Enforcement Supervisor | Harbor Department | 949-270-8164 | |
| Cortez, Gustavo | Harbor Services Worker, Lead | Harbor Department | 949-270-8159 | |
| Cuyler, Cavan | Lifeguard II | Fire | | |
| Cunningham, Augustus | Lifeguard I | Fire | | |
| Cueto, Jose | Lifeguard II | Fire | | |
