| Place | Post Code |
|---|---|
| Algarkirk, East Midlands) | PE20 |
| Amber Hill, East Midlands) | PE20 |
| Benington, East Midlands) | PE22 |
| Bicker, East Midlands) | PE20 |
| Boston, East Midlands) | PE21 |
| Boston West, East Midlands) | PE21 |
| Brothertoft, East Midlands) | PE20 |
| Butterwick, East Midlands) | PE22 |
| Fishtoft, East Midlands) | PE21, PE22 |
| Fosdyke, East Midlands) | PE20 |
| Fosdyke Bridge, East Midlands) | PE12 6LH |
| Frampton, East Midlands) | PE20, PE21 |
| Frampton Fen, East Midlands) | PE20 |
| Postal Codes in Lincolnshire | |
|---|---|
| Boston | |
| East Lindsey | |
| Lincoln | |
| North Kesteven | |
| South Holland | |
| South Kesteven | |
| West Lindsey | |