| | Miami County | IN | 18103 | | Peru, IN 37940 | Indianapolis-Carmel-Muncie,
IN 294 | Central | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=MiamiCounty+IN |
| | Montgomery County | IN | 18107 | | Crawfordsville, IN 18820 | Indianapolis-Carmel-Muncie,
IN 294 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=MontgomeryCounty+IN |
| | Morgan County | IN | 18109 | | Indianapolis-Carmel-Greenwood,
IN 26900 | Indianapolis-Carmel-Muncie,
IN 294 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=MorganCounty+IN |
| | Putnam County | IN | 18133 | | Greencastle, IN 24600 | Indianapolis-Carmel-Muncie,
IN 294 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=PutnamCounty+IN |
| | Shelby County | IN | 18145 | | Indianapolis-Carmel-Greenwood,
IN 26900 | Indianapolis-Carmel-Muncie,
IN 294 | Outlying | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=ShelbyCounty+IN |
| | Tipton County | IN | 18159 | | Indianapolis-Carmel-Greenwood,
IN 26900 | Indianapolis-Carmel-Muncie,
IN 294 | Outlying | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=TiptonCounty+IN |
| | Benton County | IN | 18007 | | Lafayette-West Lafayette,
IN 29200 | Lafayette-West
Lafayette-Frankfort, IN 320 | Outlying | metro county (urban) | farm-dependent | https://maps.google.com/?q=BentonCounty+IN |
| | Carroll County | IN | 18015 | | Lafayette-West Lafayette,
IN 29200 | Lafayette-West
Lafayette-Frankfort, IN 320 | Outlying | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=CarrollCounty+IN |
| | Clinton County | IN | 18023 | | Frankfort, IN 23140 | Lafayette-West
Lafayette-Frankfort, IN 320 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=ClintonCounty+IN |
| | Tippecanoe County | IN | 18157 | | Lafayette-West Lafayette,
IN 29200 | Lafayette-West
Lafayette-Frankfort, IN 320 | Central | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=TippecanoeCounty+IN |