| | | Caribou County | ID | 16029 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=CaribouCounty+ID |
| | | Custer County | ID | 16037 | | | | | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=CusterCounty+ID |
| | | Shoshone County | ID | 16079 | | | | | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=ShoshoneCounty+ID |
| | | Ada County | ID | 16001 | | Boise City, ID 14260 | Boise City-Mountain
Home-Ontario, ID-OR 147 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=AdaCounty+ID |
| | | Benewah County | ID | 16009 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=BenewahCounty+ID |
| | | Bingham County | ID | 16011 | | Blackfoot, ID 13940 | Idaho
Falls-Rexburg-Blackfoot,
ID 292 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=BinghamCounty+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 |
| | | Boundary County | ID | 16021 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=BoundaryCounty+ID |
| | | Butte County | ID | 16023 | | Idaho Falls, ID 26820 | Idaho
Falls-Rexburg-Blackfoot,
ID 292 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=ButteCounty+ID |
| | | Camas County | ID | 16025 | | Hailey, ID 25200 | | Outlying | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=CamasCounty+ID |
