| | | Boone County | KY | 21015 | | Cincinnati, OH-KY-IN 17140 | Cincinnati-Wilmington,
OH-KY-IN 178 | Central | in metro of > 1m | nonspecialized | https://maps.google.com/?q=BooneCounty+KY |
| | | Bracken County | KY | 21023 | | Cincinnati, OH-KY-IN 17140 | Cincinnati-Wilmington,
OH-KY-IN 178 | Outlying | in metro of > 1m | manufacturing-dependent | https://maps.google.com/?q=BrackenCounty+KY |
| | | Brown County | OH | 39015 | | Cincinnati, OH-KY-IN 17140 | Cincinnati-Wilmington,
OH-KY-IN 178 | Outlying | in metro of > 1m | nonspecialized | https://maps.google.com/?q=BrownCounty+OH |
| | | Butler County | OH | 39017 | | Cincinnati, OH-KY-IN 17140 | Cincinnati-Wilmington,
OH-KY-IN 178 | Central | in metro of > 1m | nonspecialized | https://maps.google.com/?q=ButlerCounty+OH |
| | | Campbell County | KY | 21037 | | Cincinnati, OH-KY-IN 17140 | Cincinnati-Wilmington,
OH-KY-IN 178 | Central | in metro of > 1m | federal/state
government-dependent | https://maps.google.com/?q=CampbellCounty+KY |
| | | Clermont County | OH | 39025 | | Cincinnati, OH-KY-IN 17140 | Cincinnati-Wilmington,
OH-KY-IN 178 | Central | in metro of > 1m | nonspecialized | https://maps.google.com/?q=ClermontCounty+OH |
| | | Clinton County | OH | 39027 | | Wilmington, OH 48940 | Cincinnati-Wilmington,
OH-KY-IN 178 | Central | not in metro; pop > 5k
< 20k; metro-adjacent | nonspecialized | https://maps.google.com/?q=ClintonCounty+OH |
| | | Dearborn County | IN | 18029 | | Cincinnati, OH-KY-IN 17140 | Cincinnati-Wilmington,
OH-KY-IN 178 | Outlying | in metro of > 1m | recreation | https://maps.google.com/?q=DearbornCounty+IN |
| | | Franklin County | IN | 18047 | | Cincinnati, OH-KY-IN 17140 | Cincinnati-Wilmington,
OH-KY-IN 178 | Outlying | in metro of > 1m | nonspecialized | https://maps.google.com/?q=FranklinCounty+IN |
| | | Gallatin County | KY | 21077 | | Cincinnati, OH-KY-IN 17140 | Cincinnati-Wilmington,
OH-KY-IN 178 | Outlying | in metro of > 1m | manufacturing-dependent | https://maps.google.com/?q=GallatinCounty+KY |
