Map
General Information
| Postal Area | Chelmsford |
| Postcode | CM1 1UU |
| User Type | Large (more than 25 items of mail per day) |
| Region | East of England |
| Country | England |
| Local authority | Chelmsford |
| Introduction Date | 1983-01-01 |
| Termination Date | 1996-06-01 |
Geographic Information
| Latitude | 51.7339490 |
| Longitude | 0.4691350 |
| Easting | 570600 |
| Northing | 206800 |
| Quality | Postcode terminated prior to Gridlink® initiative, last known ONS postcode grid reference |