| | | Adams County | ID | 16003 | | | | | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=AdamsCounty+ID |
| | | Bannock County | ID | 16005 | | Pocatello, ID 38540 | | Central | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=BannockCounty+ID |
| | | Bear Lake County | ID | 16007 | | | | | nonmetro county (rural) | recreation | https://maps.google.com/?q=BearLakeCounty+ID |
| | | Benewah County | ID | 16009 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=BenewahCounty+ID |
| | | Blaine County | ID | 16013 | | Hailey, ID 25200 | | Central | nonmetro county (rural) | recreation | https://maps.google.com/?q=BlaineCounty+ID |
| | | Bonner County | ID | 16017 | | Sandpoint, ID 41760 | | Central | nonmetro county (rural) | recreation | https://maps.google.com/?q=BonnerCounty+ID |
| | | Boundary County | ID | 16021 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=BoundaryCounty+ID |
| | | Camas County | ID | 16025 | | Hailey, ID 25200 | | Outlying | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=CamasCounty+ID |
| | | Caribou County | ID | 16029 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=CaribouCounty+ID |
| | | Cassia County | ID | 16031 | | Burley, ID 15420 | | Central | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=CassiaCounty+ID |
