| Place | Post Code |
|---|---|
| Akenham, East of England) | IP1, IP6 |
| Ashbocking, East of England) | IP6 |
| Ashfield, East of England) | IP14 |
| Aspall, East of England) | IP14 |
| Aspall Green, East of England) | IP14 |
| Athelington, East of England) | IP21 5EJ, IP21 5EL, IP21 … |
| Bacton, East of England) | IP14 |
| Badley, East of England) | IP14, IP6 |
| Badwell Ash, East of England) | IP31 |
| Barham, East of England) | IP6 |
| Barham Green, East of England) | IP6 0QQ |
| Barking, East of England) | IP6 |
| Battisford, East of England) | IP14 |
| Postal Codes in Suffolk | |
|---|---|
| Babergh | |
| Forest Heath | |
| Ipswich | |
| Mid Suffolk | |
| St. Edmundsbury | |
| Suffolk Coastal | |
| Waveney | |