| | | Newton County | IN | 18111 | 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=NewtonCounty+Indiana |
| | | Porter County | IN | 18127 | Lake County-Porter
County-Jasper County, IN 29414 | Chicago-Naperville-Elgin,
IL-IN 16980 | Chicago-Naperville,
IL-IN-WI 176 | Central | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=PorterCounty+Indiana |
| | | Dearborn County | IN | 18029 | | Cincinnati, OH-KY-IN 17140 | Cincinnati-Wilmington,
OH-KY-IN 178 | Outlying | metro county (urban) | recreation | https://maps.google.com/?q=DearbornCounty+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 |
| | | Ohio County | IN | 18115 | | Cincinnati, OH-KY-IN 17140 | Cincinnati-Wilmington,
OH-KY-IN 178 | Outlying | metro county (urban) | recreation | https://maps.google.com/?q=OhioCounty+IN |
| | | Posey County | IN | 18129 | | Evansville, IN 21780 | Evansville-Henderson,
IN-KY 241 | Outlying | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=PoseyCounty+IN |
| | | Vanderburgh County | IN | 18163 | | Evansville, IN 21780 | Evansville-Henderson,
IN-KY 241 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=VanderburghCounty+IN |
| | | Warrick County | IN | 18173 | | Evansville, IN 21780 | Evansville-Henderson,
IN-KY 241 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=WarrickCounty+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 |
| | | Allen County | IN | 18003 | | Fort Wayne, IN 23060 | Fort
Wayne-Huntington-Auburn,
IN 258 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=AllenCounty+IN |
