RM - Romford
The postal area RM (Romford) comprises of the following post towns; these towns should be written in capital letters when used in addresses.
Postal Districts within RM - Romford
| Country | Post Town | Postal District |
| England | Romford | RM1 RM2 RM3 RM4 RM5 RM6 RM7 |
| Dagenham | RM8 RM9 RM10 |
|
| Hornchurch | RM11 RM12 |
|
| Rainham | RM13 | |
| Upminster | RM14 | |
| South Ockendon | RM15 | |
| Grays | RM16 RM17 RM20 |
|
| Tilbury | RM18 | |
| Purfleet | RM19 |
