| | Carroll County | MS | 28015 | | Greenwood, MS 24900 | | Outlying | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=CarrollCounty+MS |
| | Issaquena County | MS | 28055 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=IssaquenaCounty+MS |
| | Quitman County | MS | 28119 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=QuitmanCounty+MS |
| | Sharkey County | MS | 28125 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=SharkeyCounty+MS |
| | Tallahatchie County | MS | 28135 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=TallahatchieCounty+MS |
| | Forrest County | MS | 28035 | | Hattiesburg, MS 25620 | Hattiesburg-Laurel, MS 279 | Central | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=ForrestCounty+MS |
| | Hancock County | MS | 28045 | | Gulfport-Biloxi, MS 25060 | | Central | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=HancockCounty+MS |
| | Hinds County | MS | 28049 | | Jackson, MS 27140 | Jackson-Vicksburg-Brookhaven,
MS 298 | Central | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=HindsCounty+MS |
| | Lafayette County | MS | 28071 | | Oxford, MS 37060 | | Central | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=LafayetteCounty+MS |
| | Newton County | MS | 28101 | | | | | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=NewtonCounty+MS |