| Company | Category | Area | Address | Web | E-mail | Contact person |
| YANKTON COUNTY HIGHWAY DEPT | Highway & St Constr | South Dakota | 321 W 3RD ST, YANKTON, Yankton, South Dakota, 57078-4324, USA |
- |
- |
- |
| YANKTON COUNTY JAIL | Correctional Instns | South Dakota | 410 WALNUT ST, YANKTON, Yankton, South Dakota, 57078-4388, USA |
- |
- |
STEWART HOWELL |
| YANKTON COUNTY MUSEUM | Exec Offs,State-Local | South Dakota | 610 SUMMIT ST, YANKTON, Yankton, South Dakota, 57078-3858, USA |
- |
- |
DOUGLAS SALL |
| YANKTON COUNTY OBSERVER | Newspapers (Publishers) | South Dakota | 409 CEDAR ST, YANKTON, Yankton, South Dakota, 57078-4367, USA |
- |
- |
David Baumeister |
| YANKTON COUNTY REGISTER-DEEDS | Government Offices-County | South Dakota | 321 W 3RD ST, YANKTON, Yankton, South Dakota, 57078-4324, USA |
- |
- |
Lynette R Larson |
| YANKTON COUNTY REGISTER-DEEDS | Exec Offs,State-Local | South Dakota | 321 W 3RD ST, YANKTON, Yankton, South Dakota, 57078-4324, USA |
- |
- |
BRIAN J HUNHOFF |
| YANKTON COUNTY SHERIFF | Police | South Dakota | 410 WALNUT ST, YANKTON, Yankton, South Dakota, 57078-4388, USA |
- |
- |
DAVID HUNHOFF |
| YANKTON COUNTY SHERIFF | Sheriff | South Dakota | 410 WALNUT ST, YANKTON, Yankton, South Dakota, 57078-4388, USA |
- |
- |
David Hunhoff |
| YANKTON COUNTY STATE ATTORNEY | Legal Counsel | South Dakota | 321 W 3RD ST, YANKTON, Yankton, South Dakota, 57078-4324, USA |
- |
- |
ROBERT W KLIMISCH |
| YANKTON COUNTY STATE ATTORNEY | State Government-Legal Counsel | South Dakota | 321 W 3RD ST, YANKTON, Yankton, South Dakota, 57078-4324, USA |
- |
- |
Robert W Klimisch |
