| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Bokiddick | PL30 5HP |
| Postal/ZIP Codes in Bolingey | TR6 |
| Postal/ZIP Codes in Bolventor | PL15 |
| Postal/ZIP Codes in Booby's Bay | PL28 8SH |
| Postal/ZIP Codes in Boscastle | PL35 |
| Postal/ZIP Codes in Boscundle | PL25 |
| Postal/ZIP Codes in Bosleake | TR15 3YG |
| Postal/ZIP Codes in Bosoughan | TR8 4ND |
| Postal/ZIP Codes in Bossiney | PL34 |
| Postal/ZIP Codes in Bosullow | TR20 |
| Postal/ZIP Codes in Boswinger | PL26 6LL |
| Postal/ZIP Codes in Botus Fleming | PL12 |
| Postal/ZIP Codes in Bowithick | PL15 7SH |
| Postal/ZIP Codes in Bowling Green | PL26 8RN |
| Postal/ZIP Codes in Boyton | PL15 |
| Postal/ZIP Codes in Braddock | PL22 |
| Postal/ZIP Codes in Bray Shop | PL17 |
| Postal/ZIP Codes in Brazacott | PL15 8NE |
| Postal/ZIP Codes in Brea | TR14 |
| Postal/ZIP Codes in Breage | TR13 |
| Postal/ZIP Codes in Brentfields | PL13 |
| Postal/ZIP Codes in Bridge | TR16, TR9 |
| Postal/ZIP Codes in Bridge Moor | TR16 |
| Postal/ZIP Codes in Bridges | PL30 5EF |
| Postal/ZIP Codes in Buckshead | TR1, TR5 |
| Postal/ZIP Codes in Bude | EX23 |