| | Pike County | IN | 18125 | | | | | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=PikeCounty+IN |
| | Pulaski County | IN | 18131 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=PulaskiCounty+IN |
| | Randolph County | IN | 18135 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=RandolphCounty+IN |
| | Ripley County | IN | 18137 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=RipleyCounty+IN |
| | Rush County | IN | 18139 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=RushCounty+IN |
| | Scott County | IN | 18143 | | | | | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=ScottCounty+IN |
| | Spencer County | IN | 18147 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=SpencerCounty+IN |
| | Starke County | IN | 18149 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=StarkeCounty+IN |
| | Sullivan County | IN | 18153 | | Terre Haute, IN 45460 | | Outlying | metro county (urban) | mining-dependent | https://maps.google.com/?q=SullivanCounty+IN |
| | Switzerland County | IN | 18155 | | | | | nonmetro county (rural) | recreation | https://maps.google.com/?q=SwitzerlandCounty+IN |