| Business | Phone |
| Honorable Sc Clarke 316 E 5th St, Waterloo 50703 | (319) 833-3291 |
| Clerk Of Court 316 E 5th St, Waterloo 50703 | (319) 833-3331 |
| Residential Site Management 310 E 6th St, Waterloo 50703 | (319) 291-2015 |
| Transportation-Materials Lab 1875 W Ridgeway Ave, Waterloo 50701 | (319) 233-4689 |
| Correction Services Dept 310 E 6th St, Waterloo 50703 | (319) 291-2087 |