Romford Postcode RM Postal Area
Postcode RM has post towns
The southern boundary is the River Thames.
Romford contains 20 districts
- RM1 (Romford) Romford
- RM2 (Romford) Gidea Park, Heath Park
- RM3 (Romford) Harold Wood, Harold Hill, Noak Hill
- RM4 (Romford) Havering-atte-Bower, Abridge, Stapleford Abbotts, Noak Hill, Navestock, Stapleford Tawney, Stapleford Aerodrome
- RM5 (Romford) Collier Row
- RM6 (Romford) Chadwell Heath, Marks Gate, Little Heath
- RM7 (Romford) Rush Green, Mawneys, Romford
- RM8 (Dagenham) Dagenham, Becontree Heath
- RM9 (Dagenham) Dagenham, Becontree
- RM10 (Dagenham) Dagenham
- RM11 (Hornchurch) Hornchurch, Emerson Park, Ardleigh Green
- RM12 (Hornchurch) Hornchurch, Elm Park
- RM13 (Rainham) Rainham, South Hornchurch, Wennington
- RM14 (Upminster) Upminster, Cranham, North Ockendon, Bulphan
- RM15 (South Ockendon) South Ockendon, Aveley
- RM16 (Grays) Chafford Hundred, Chadwell St Mary, North Stifford, Orsett
- RM17 (Grays) Grays, Badgers Dene
- RM18 (Tilbury) Tilbury, East Tilbury, West Tilbury
- RM19 (Purfleet) Purfleet
- RM20 (Grays) West Thurrock, South Stifford
Romford contains 8 non geographic sectors