| Business | Phone |
| Inrcog 501 Sycamore St 333, Waterloo 50703 | (319) 235-0311 |
| N Iowa Juvenile Detention Svc 1440 W Dunkerton Rd, Waterloo 50703 | (319) 291-2455 |
| Arrive Alive 1407 Independence Ave # 5, Waterloo 50703 | (319) 291-2661 |
| Black Hawk Cnty Community Svc 1407 Independence Ave, Waterloo 50703 | (319) 291-2400 |
| Black Hawk Cnty Consolidated 225 E 6th St, Waterloo 50703 | (319) 291-2680 |
| Black Hawk Cnty Human Resource 316 E 5th St, Waterloo 50703 | (319) 833-3009 |
| Black Hawk Cnty Institutional 316 E 5th St, Waterloo 50703 | (319) 833-3010 |
| Black Hawk Cnty Success Street 1515 1/2 Logan Ave, Waterloo 50703 | (319) 291-2674 |
| Success Street 425 1/2 E Ridgeway Ave, Waterloo 50702 | (319) 291-2665 |
| Black Hawk Cnty Success Street 927 Franklin St, Waterloo 50703 | (319) 291-2458 |
| Black Hawk County Bldg Inspctn 715 Mulberry St 2, Waterloo 50703 | (319) 291-4319 |
| Black Hawk County Bldg Mntnc 316 E 5th St, Waterloo 50703 | (319) 833-3004 |
| Black Hawk County Case Mgmt 1407 Independence Ave, Waterloo 50703 | (319) 232-0477 |
| Black Hawk County Clerk/Courts 316 E 5th St, Waterloo 50703 | (319) 833-3333 |
| Black Hawk County Conservator 316 E 5th St, Waterloo 50703 | (319) 833-3005 |
| Black Hawk County Drivers Lcns 225 E 6th St, Waterloo 50703 | (319) 235-0902 |
| Black Hawk Cnty Voter Rgstrtn 316 E 5th St, Waterloo 50703 | (319) 833-3007 |
| Black Hawk County Engineer 316 E 5th St, Waterloo 50703 | (319) 833-3008 |
| Black Hawk County Mis Dept 316 E 5th St, Waterloo 50703 | (319) 833-3011 |
| Black Hawk County Planning 316 E 5th St, Waterloo 50703 | (319) 291-4366 |
| Black Hawk County Recorder 316 E 5th St, Waterloo 50703 | (319) 833-3012 |
| Extension Service-Iowa State 3420 University Ave, Waterloo 50701 | (319) 234-6811 |
| Black Hawk Secondary Rd Garage 1329 Longfellow Ave, Waterloo 50703 | (319) 291-2510 |
| Black Hawk Veteran Affairs 1407 Independence Ave 448, Waterloo 50703 | (319) 291-2512 |
| Black Hawk Youth Shelter 1450 W Dunkerton Rd, Waterloo 50703 | (319) 291-2531 |
| Bremer County Nursing Agency Waterloo 50703 | (319) 235-6201 |
| Region 7 Workforce Development 3420 University Ave, Waterloo 50701 | (319) 291-2546 |