| | | Union County | IN | 18161 | | | | | metro county (urban) | nonspecialized | https://maps.google.com/?q=UnionCounty+IN |
| | | Vermillion County | IN | 18165 | | Terre Haute, IN 45460 | | Outlying | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=VermillionCounty+IN |
| | | Vigo County | IN | 18167 | | Terre Haute, IN 45460 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=VigoCounty+IN |
| | | Wabash County | IN | 18169 | | Wabash, IN 47340 | | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=WabashCounty+IN |
| | | Lawrence County | IN | 18093 | | Bedford, IN 13260 | Bloomington-Bedford, IN 144 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=LawrenceCounty+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 |
| | | Owen County | IN | 18119 | | Bloomington, IN 14020 | Bloomington-Bedford, IN 144 | Outlying | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=OwenCounty+IN |
| | | Jasper County | IN | 18073 | Lake County-Porter
County-Jasper County, IN 29414 | Chicago-Naperville-Elgin,
IL-IN 16980 | Chicago-Naperville,
IL-IN-WI 176 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=JasperCounty+Indiana |
| | | Lake County | IN | 18089 | Lake County-Porter
County-Jasper County, IN 29414 | Chicago-Naperville-Elgin,
IL-IN 16980 | Chicago-Naperville,
IL-IN-WI 176 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=LakeCounty+Indiana |
| | | LaPorte County | IN | 18091 | | Michigan City-La Porte,
IN 33140 | Chicago-Naperville,
IL-IN-WI 176 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=LaPorteCounty+IN |
