| | Greene County | MS | 28041 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=GreeneCounty+MS |
| | Grenada County | MS | 28043 | | Grenada, MS 24980 | | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=GrenadaCounty+MS |
| | Hancock County | MS | 28045 | | Gulfport-Biloxi, MS 25060 | | Central | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=HancockCounty+MS |
| | Harrison County | MS | 28047 | | Gulfport-Biloxi, MS 25060 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=HarrisonCounty+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 |
| | Holmes County | MS | 28051 | | Jackson, MS 27140 | Jackson-Vicksburg-Brookhaven,
MS 298 | Outlying | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=HolmesCounty+MS |
| | Humphreys County | MS | 28053 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=HumphreysCounty+MS |
| | Issaquena County | MS | 28055 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=IssaquenaCounty+MS |
| | Itawamba County | MS | 28057 | | Tupelo, MS 46180 | Tupelo-Corinth, MS 539 | Outlying | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=ItawambaCounty+MS |
| | Jackson County | MS | 28059 | | Gulfport-Biloxi, MS 25060 | | Outlying | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=JacksonCounty+MS |