The CM1 1SX postcode was located in Chelmsford, Essex postcode town, within East of England, England region.
It is now a terminated postcode, it was a Large User postcode introduced in 2006-09 and terminated on 2007-07.
| Name | Type |
|---|---|
| OA21CD | E00170974 |
| LSOA21CD | E01034091 |
| MSOA21CD | E02006979 |
| MSOA21 | Central Chelmsford West |
| Postcode Area | CM1 |
| Ward | Marconi |
| LTLA22 | Chelmsford |
| UTLA22 | Essex |
| Region | East of England |
| Country | England |
| Co-ordinates | [ 0.46596562555011634, 51.737181112839366 ] |