The CM11 1SL postcode was located in Basildon, Essex postcode town, within East of England, England region.
It is now a terminated postcode, it was a Large User postcode introduced in 1988-03 and terminated on 1990-12.
| Name | Type |
|---|---|
| OA21CD | E00107873 |
| LSOA21CD | E01021237 |
| MSOA21CD | E02004424 |
| MSOA21 | Billericay North East |
| Postcode Area | CM11 |
| Ward | Billericay East |
| LTLA22 | Basildon |
| UTLA22 | Essex |
| Region | East of England |
| Country | England |
| Co-ordinates | [ 0.4380200560361876, 51.64017182751896 ] |