| Business | Phone |
| Calexico Wastewater Plant 298 E Anza Rd, Calexico 92231 | (760) 768-2167 |
| Calexico Building Inspection 608 Heber Ave, Calexico 92231 | (760) 768-2105 |
| Calexico City Shop 640 Pierce Ave, Calexico 92231 | (760) 768-2166 |
| Calexico Engineering Dept 608 Heber Ave, Calexico 92231 | (760) 768-2100 |
| Calexico Planning Dept 608 Heber Ave, Calexico 92231 | (760) 768-2118 |