| | | Canyon County | ID | 16027 | | Boise City, ID 14260 | Boise City-Mountain
Home-Ontario, ID-OR 147 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=CanyonCounty+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 |
| | | Gem County | ID | 16045 | | Boise City, ID 14260 | Boise City-Mountain
Home-Ontario, ID-OR 147 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=GemCounty+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 |
| | | 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 |
| | | Twin Falls County | ID | 16083 | | Twin Falls, ID 46300 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=TwinFallsCounty+ID |
| | | Washington County | ID | 16087 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=WashingtonCounty+ID |
| | | Bear Lake County | ID | 16007 | | | | | nonmetro county (rural) | recreation | https://maps.google.com/?q=BearLakeCounty+ID |
| | | Blaine County | ID | 16013 | | Hailey, ID 25200 | | Central | nonmetro county (rural) | recreation | https://maps.google.com/?q=BlaineCounty+ID |
