| | | McLean County | KY | 21149 | | Owensboro, KY 36980 | | Outlying | metro county (urban) | farm-dependent | https://maps.google.com/?q=McLeanCounty+KY |
| | | Meade County | KY | 21163 | | Louisville/Jefferson
County, KY-IN 31140 | Louisville/Jefferson
County--Elizabethtown,
KY-IN 350 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=MeadeCounty+KY |
| | | Menifee County | KY | 21165 | | Mount Sterling, KY 34460 | Lexington-Fayette--Richmond--Frankfort,
KY 336 | Outlying | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=MenifeeCounty+KY |
| | | Mercer County | KY | 21167 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=MercerCounty+KY |
| | | Metcalfe County | KY | 21169 | | Glasgow, KY 23980 | Bowling
Green-Glasgow-Franklin,
KY 150 | Outlying | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=MetcalfeCounty+KY |
| | | Monroe County | KY | 21171 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=MonroeCounty+KY |
| | | Montgomery County | KY | 21173 | | Mount Sterling, KY 34460 | Lexington-Fayette--Richmond--Frankfort,
KY 336 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=MontgomeryCounty+KY |
| | | Morgan County | KY | 21175 | | | | | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=MorganCounty+KY |
| | | Muhlenberg County | KY | 21177 | | | | | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=MuhlenbergCounty+Kentucky |
| | | Nelson County | KY | 21179 | | Louisville/Jefferson
County, KY-IN 31140 | Louisville/Jefferson
County--Elizabethtown,
KY-IN 350 | Outlying | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=NelsonCounty+Kentucky |
