| | | Taylor County | KY | 21217 | | Campbellsville, KY 15820 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=TaylorCounty+KY |
| | | Warren County | KY | 21227 | | Bowling Green, KY 14540 | Bowling
Green-Glasgow-Franklin,
KY 150 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=WarrenCounty+KY |
| | | Whitley County | KY | 21235 | | Corbin, KY 18340 | Middlesborough-Corbin, KY 371 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=WhitleyCounty+Kentucky |
| | | Allen County | KY | 21003 | | Bowling Green, KY 14540 | Bowling
Green-Glasgow-Franklin,
KY 150 | Outlying | metro county (urban) | farm-dependent | https://maps.google.com/?q=AllenCounty+KY |
| | | Anderson County | KY | 21005 | | Frankfort, KY 23180 | Lexington-Fayette--Richmond--Frankfort,
KY 336 | Outlying | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=AndersonCounty+KY |
| | | 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 |
| | | Bath County | KY | 21011 | | Mount Sterling, KY 34460 | Lexington-Fayette--Richmond--Frankfort,
KY 336 | Outlying | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=BathCounty+KY |
| | | Bourbon County | KY | 21017 | | Lexington-Fayette, KY 30460 | Lexington-Fayette--Richmond--Frankfort,
KY 336 | Outlying | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=BourbonCounty+KY |
| | | Bracken County | KY | 21023 | | Cincinnati, OH-KY-IN 17140 | Cincinnati-Wilmington,
OH-KY-IN 178 | Outlying | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=BrackenCounty+KY |
| | | Butler County | KY | 21031 | | Bowling Green, KY 14540 | Bowling
Green-Glasgow-Franklin,
KY 150 | Outlying | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=ButlerCounty+KY |
