| | Adams County | MS | 28001 | | Natchez, MS-LA 35020 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=AdamsCounty+MS |
| | Amite County | MS | 28005 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=AmiteCounty+MS |
| | Attala County | MS | 28007 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=AttalaCounty+MS |
| | Bolivar County | MS | 28011 | | Cleveland, MS 17380 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=BolivarCounty+Mississippi |
| | Calhoun County | MS | 28013 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=CalhounCounty+MS |
| | Carroll County | MS | 28015 | | Greenwood, MS 24900 | | Outlying | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=CarrollCounty+MS |
| | Chickasaw County | MS | 28017 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=ChickasawCounty+MS |
| | Choctaw County | MS | 28019 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=ChoctawCounty+MS |
| | Claiborne County | MS | 28021 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=ClaiborneCounty+MS |
| | Clarke County | MS | 28023 | | Meridian, MS 32940 | | Outlying | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=ClarkeCounty+MS |