| Business | Phone |
| Costa Mesa City Code Enfrcmnt 77 Fair Dr, Costa Mesa 92626 | (714) 754-5623 |
| Costa Mesa Management Info Svc 77 Fair Dr, Costa Mesa 92626 | (714) 754-4891 |
| Costa Mesa Public Svc 77 Fair Dr, Costa Mesa 92626 | (714) 754-5343 |
| Animal Licensing 99 Fair Dr, Costa Mesa 92626 | (714) 754-5188 |
| Balearic Center 1975 Balearic Dr, Costa Mesa 92626 | (714) 754-5158 |
| City Warehouse 2300 Placentia Ave, Costa Mesa 92627 | (714) 327-7477 |
| Costa Mesa Finance-Warehouse 2300 Placentia Ave, Costa Mesa 92627 | (949) 327-7477 |
| Job Center 1697 Placentia Ave, Costa Mesa 92627 | (949) 631-1963 |