| Locality | Post Code |
|---|---|
| Bell Lake | TR14 0JG |
| Belowda | PL26 |
| Bethany | PL12 5DE |
| Bicton | PL14 5RF |
| Bilberry | PL26 |
| Bissoe | TR4 |
| Bissom | TR10 9LH, TR10 9LJ, TR10 … |
| Bitthams | PL18 9PD |
| Black Cross | TR8 4LU |
| Black Rock | TR14 |
| Blackwater | TR4 |
| Blisland | PL30 |
| Blowinghouse | TR15 |
| Blue Anchor | TR9 |
| Blue Hills | TR5 0RG |
| Blunts | PL12 |
| Boconnoc | PL22 |
| Bodelva | PL24 |
| Bodieve | PL27 |
| Bodiniel | PL31 2PF |
| Bodinnick | PL23 |
| Bodmin | PL30, PL31 |
| Bodrean | TR4 |
| Bodwen | PL26, PL30 |
| Bohetherick | PL12 |
| Bojea | PL25 5RU |