| | | Ballard County | KY | 21007 | | Paducah, KY-IL 37140 | Paducah-Mayfield, KY-IL 424 | Outlying | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=BallardCounty+KY |
| | | Carlisle County | KY | 21039 | | Paducah, KY-IL 37140 | Paducah-Mayfield, KY-IL 424 | Outlying | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=CarlisleCounty+KY |
| | | Graves County | KY | 21083 | | Mayfield, KY 32460 | Paducah-Mayfield, KY-IL 424 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=GravesCounty+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 |
| | | McCracken County | KY | 21145 | | Paducah, KY-IL 37140 | Paducah-Mayfield, KY-IL 424 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=McCrackenCounty+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 |
| | | Clay County | KY | 21051 | | Corbin, KY 18340 | Middlesborough-Corbin, KY 371 | Outlying | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=ClayCounty+KY |
| | | Knox County | KY | 21121 | | Corbin, KY 18340 | Middlesborough-Corbin, KY 371 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=KnoxCounty+Kentucky |
| | | Laurel County | KY | 21125 | | Corbin, KY 18340 | Middlesborough-Corbin, KY 371 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=LaurelCounty+Kentucky |
| | | Whitley County | KY | 21235 | | Corbin, KY 18340 | Middlesborough-Corbin, KY 371 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=WhitleyCounty+Kentucky |
