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