| | Simpson County | KY | 21213 | | Franklin, KY 23190 | Bowling
Green-Glasgow-Franklin,
KY 150 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=SimpsonCounty+KY |
| | Washington County | KY | 21229 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=WashingtonCounty+KY |
| | Wayne County | KY | 21231 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=WayneCounty+KY |
| | Bell County | KY | 21013 | | Middlesborough, KY 33180 | Middlesborough-Corbin, KY 371 | Central | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=BellCounty+KY |
| | Floyd County | KY | 21071 | | Pikeville, KY 38210 | | Outlying | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=FloydCounty+KY |
| | Harlan County | KY | 21095 | | | | | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=HarlanCounty+KY |
| | Knott County | KY | 21119 | | | | | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=KnottCounty+KY |
| | Leslie County | KY | 21131 | | | | | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=LeslieCounty+KY |
| | Letcher County | KY | 21133 | | | | | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=LetcherCounty+KY |
| | Livingston County | KY | 21139 | | Paducah, KY-IL 37140 | Paducah-Mayfield, KY-IL 424 | Outlying | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=LivingstonCounty+KY |