| | | 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 |
| | | Warren County | IN | 18171 | | Lafayette-West Lafayette,
IN 29200 | Lafayette-West
Lafayette-Frankfort, IN 320 | Outlying | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=WarrenCounty+IN |
| | | Delaware County | IN | 18035 | | Muncie, IN 34620 | Indianapolis-Carmel-Muncie,
IN 294 | Central | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=DelawareCounty+IN |
| | | Knox County | IN | 18083 | | Vincennes, IN 47180 | | Central | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=KnoxCounty+IN |
| | | Martin County | IN | 18101 | | | | | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=MartinCounty+IN |
| | | 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 |
| | | Monroe County | IN | 18105 | | Bloomington, IN 14020 | Bloomington-Bedford, IN 144 | Central | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=MonroeCounty+IN |
| | | Parke County | IN | 18121 | | | | | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=ParkeCounty+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 |
| | | Adams County | IN | 18001 | | Decatur, IN 19540 | Fort
Wayne-Huntington-Auburn,
IN 258 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=AdamsCounty+IN |
