| | | Bonner County | ID | 16017 | | Sandpoint, ID 41760 | | Central | nonmetro county (rural) | recreation | https://maps.google.com/?q=BonnerCounty+ID |
| | | Bonneville County | ID | 16019 | | Idaho Falls, ID 26820 | Idaho
Falls-Rexburg-Blackfoot,
ID 292 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=BonnevilleCounty+ID |
| | | Cassia County | ID | 16031 | | Burley, ID 15420 | | Central | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=CassiaCounty+ID |
| | | Elmore County | ID | 16039 | | Mountain Home, ID 34300 | Boise City-Mountain
Home-Ontario, ID-OR 147 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=ElmoreCounty+ID |
| | | Kootenai County | ID | 16055 | | Coeur d'Alene, ID 17660 | Spokane-Spokane
Valley-Coeur
d'Alene, WA-ID 518 | Central | metro county (urban) | recreation | https://maps.google.com/?q=KootenaiCounty+ID |
| | | Latah County | ID | 16057 | | Moscow, ID 34140 | Pullman-Moscow, WA-ID 446 | Central | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=LatahCounty+ID |
| | | Madison County | ID | 16065 | | Rexburg, ID 39940 | Idaho
Falls-Rexburg-Blackfoot,
ID 292 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=MadisonCounty+ID |
| | | Minidoka County | ID | 16067 | | Burley, ID 15420 | | Central | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=MinidokaCounty+ID |
| | | Nez Perce County | ID | 16069 | | Lewiston, ID-WA 30300 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=NezPerceCounty+ID |
| | | Payette County | ID | 16075 | | Ontario, OR-ID 36620 | Boise City-Mountain
Home-Ontario, ID-OR 147 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=PayetteCounty+ID |
