| Jordan, Wesley | Utilities Specialist | Utilities | | |
| Jones, Tyler | Recreation Leader, Senior | Recreation & Senior Services | | |
| Jones, Evan | Recreation Leader, Senior | Recreation & Senior Services | | |
| Jette, Mark | Park Patrol Officer | Recreation & Senior Services | 949-795-2381 | |
| Janda, Anna | Senior Pool Lifeguard | Recreation & Senior Services | | |
| Jameson, Tyler | Senior Pool Lifeguard | Recreation & Senior Services | | |
| Jalandoni, Nathan | Recreation Leader, Senior | Recreation & Senior Services | | |
| Jacob, Jericho | Recreation Leader, Senior | Recreation & Senior Services | | |
| Jordan, Daniel | Civil Engineer, Associate | Public Works | 949-644-3344 | |
| Jones, Laura | Maintenance Aide | Public Works | 949-718-3463 | |
| Johnson, Greg | Library Assistant | Library - City | 949-717-3808 | |
| Johnson, Priscilla | Library Clerk I | Library - City | 949-717-3851 | |
| Johnkins, Alexander | Librarian II | Library - City | 949-717-3840 | |
| Jacome, Sully | Library Assistant | Library - City | 949-717-3838 | |
| Jacome, Francine | Administrative Assistant | Library - City | 949-717-3809 | |
| Jorgensen, Calvin | Lifeguard I | Fire | | |
| Johnston, Matthew | Firefighter Paramedic 112 Hour (Before 1-1-2016) | Fire | 949-644-3355 | |
| Johnson, Jay | Lifeguard I | Fire | | |
| Johnson, Karsten | Lifeguard II | Fire | | |
| John, Gabriel | Lifeguard II | Fire | | |
