| | Crittenden County | KY | 21055 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=CrittendenCounty+KY |
| | Cumberland County | KY | 21057 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=CumberlandCounty+KY |
| | Daviess County | KY | 21059 | | Owensboro, KY 36980 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=DaviessCounty+KY |
| | Elliott County | KY | 21063 | | | | | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=ElliottCounty+KY |
| | Fleming County | KY | 21069 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=FlemingCounty+KY |
| | Floyd County | KY | 21071 | | Pikeville, KY 38210 | | Outlying | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=FloydCounty+KY |
| | Fulton County | KY | 21075 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=FultonCounty+Kentucky |
| | Garrard County | KY | 21079 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=GarrardCounty+KY |
| | Grayson County | KY | 21085 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=GraysonCounty+KY |
| | Green County | KY | 21087 | | Campbellsville, KY 15820 | | Outlying | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=GreenCounty+KY |