| Business | Phone |
| Calhoun Cnty Comm Vets Affairs 515 Court St, Rockwell City 50579 | (712) 297-8632 |
| Calhoun County Computer Room 416 4th St, Rockwell City 50579 | (712) 297-7913 |
| Calhoun County Custodian Mntnc Courthouse, Rockwell City 50579 | (712) 297-7016 |
| Calhoun County Family Dev Ctr 412 5th St, Rockwell City 50579 | (712) 297-7721 |
| Us Consolidated Farm Svc Agcy 905 High St, Rockwell City 50579 | (712) 297-7528 |
| Calhoun County General Relief 515 Court St, Rockwell City 50579 | (712) 297-5292 |
| Calhoun County Home Care Agncy 501 Court St, Rockwell City 50579 | (712) 297-7856 |
| Calhoun County Recorder 416 4th St 3, Rockwell City 50579 | (712) 297-8121 |
| County Shed 105 E Court St, Rockwell City 50579 | (712) 297-7021 |