Map
General Information
| Postal Area | Chelmsford |
| Postcode | CM99 1AA |
| User Type | Large (more than 25 items of mail per day) |
| Region | East of England |
| Country | England |
| Local authority | Chelmsford |
| Introduction Date | 1993-01-01 |
| Termination Date | 2004-08-01 |
| IMD 2025 | Decile 10 (most deprived = 1, least = 10) Rank 30,457 of 33,755 English Indices of Deprivation 2025 |
Geographic Information
| Latitude | 51.7174980 |
| Longitude | 0.5007280 |
| Easting | 572844 |
| Northing | 205045 |
| Quality | Within the building of the matched address closest to the postcode mean |