| Business | Phone |
| Bostonia Park Center 1049 Bostonia St, El Cajon 92021 | (619) 441-1670 |
| El Cajon Administrative Svc 200 E Main St, El Cajon 92020 | (619) 441-1708 |
| El Cajon Animal Control 1275 N Marshall Ave, El Cajon 92020 | (619) 441-1580 |
| El Cajon Building Div 200 E Main St # 3, El Cajon 92020 | (619) 441-1726 |
| El Cajon Building Inspection 200 E Main St, El Cajon 92020 | (619) 440-0481 |
| El Cajon City Code Dept 200 E Main St, El Cajon 92020 | (619) 441-1764 |
| El Cajon City Job Information 200 E Main St, El Cajon 92020 | (619) 441-1671 |
| El Cajon City Manager's Office 200 E Main St, El Cajon 92020 | (619) 441-1716 |
| El Cajon Elections Dept 200 E Main St, El Cajon 92020 | (619) 441-1763 |
| El Cajon Facilities Mntnc 200 E Main St, El Cajon 92020 | (619) 441-1766 |
| El Cajon Fleet Maintenance 1060 Vernon Way, El Cajon 92020 | (619) 441-1769 |
| El Cajon General Information 200 E Main St, El Cajon 92020 | (619) 441-1776 |
| El Cajon Housing Div 200 E Main St, El Cajon 92020 | (619) 441-1768 |
| El Cajon Human Resources 200 E Main St, El Cajon 92020 | (619) 441-1736 |
| El Cajon Personnel Commission 200 E Main St, El Cajon 92020 | (619) 441-1657 |
| El Cajon Purchasing 200 E Main St, El Cajon 92020 | (619) 441-1715 |
| El Cajon Sewer Charges 200 E Main St, El Cajon 92020 | (619) 441-1668 |
| El Cajon Street Maintenance 1050 Vernon Way, El Cajon 92020 | (619) 441-1658 |
| Renette Park Center 935 Emerald Ave, El Cajon 92020 | (619) 441-1678 |
| Fletcher Hills Park Center 2345 Center Pl, El Cajon 92020 | (619) 441-1672 |
| Hillside Park Center 840 Buena Ter, El Cajon 92020 | (619) 441-1674 |
| Kennedy Park Center 1675 E Madison Ave, El Cajon 92019 | (619) 441-1676 |