| | Fayette County | IN | 18041 | | Connersville, IN 18220 | Richmond-Connersville, IN 458 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=FayetteCounty+IN |
| | Floyd County | IN | 18043 | | Louisville/Jefferson
County, KY-IN 31140 | Louisville/Jefferson
County--Elizabethtown,
KY-IN 350 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=FloydCounty+IN |
| | Fountain County | IN | 18045 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=FountainCounty+IN |
| | Franklin County | IN | 18047 | | Cincinnati, OH-KY-IN 17140 | Cincinnati-Wilmington,
OH-KY-IN 178 | Outlying | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=FranklinCounty+IN |
| | Fulton County | IN | 18049 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=FultonCounty+IN |
| | Gibson County | IN | 18051 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=GibsonCounty+IN |
| | Grant County | IN | 18053 | | Marion, IN 31980 | | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=GrantCounty+IN |
| | Greene County | IN | 18055 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=GreeneCounty+IN |
| | Hamilton County | IN | 18057 | | Indianapolis-Carmel-Greenwood,
IN 26900 | Indianapolis-Carmel-Muncie,
IN 294 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=HamiltonCounty+IN |
| | Hancock County | IN | 18059 | | Indianapolis-Carmel-Greenwood,
IN 26900 | Indianapolis-Carmel-Muncie,
IN 294 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=HancockCounty+IN |