| | Bedford County | VA | 51019 | | Lynchburg, VA 31340 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=BedfordCounty+VA |
| | Bland County | VA | 51021 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=BlandCounty+VA |
| | Botetourt County | VA | 51023 | | Roanoke, VA 40220 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=BotetourtCounty+VA |
| | Bristol city | VA | 51520 | | Kingsport-Bristol, TN-VA 28700 | Johnson
City-Kingsport-Bristol,
TN-VA 304 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=Bristolcity+VA |
| | Brunswick County | VA | 51025 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=BrunswickCounty+VA |
| | Buchanan County | VA | 51027 | | | | | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=BuchananCounty+VA |
| | Buckingham County | VA | 51029 | | | | | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=BuckinghamCounty+VA |
| | Buena Vista city | VA | 51530 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=BuenaVistacity+VA |
| | Campbell County | VA | 51031 | | Lynchburg, VA 31340 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=CampbellCounty+VA |
| | Caroline County | VA | 51033 | | | | | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=CarolineCounty+VA |