| Business | Phone |
| Building Official 621 Cleveland Blvd, Caldwell 83605 | (208) 455-3024 |
| Caldwell Events Ctr 2207 Blaine St, Caldwell 83605 | (208) 455-3004 |
| Caldwell Events Stadium 2207 Blaine St, Caldwell 83605 | (208) 455-3015 |
| Caldwell Information Tech Svc 621 Cleveland Blvd, Caldwell 83605 | (208) 455-4580 |
| Caldwell Purchasing Dept 621 Cleveland Blvd, Caldwell 83605 | (208) 455-4686 |
| Sewage Treatment 504 Johnson Ln, Caldwell 83605 | (208) 455-3041 |
| City-Caldwell Engineering Dept 621 Cleveland Blvd, Caldwell 83605 | (208) 455-3006 |