Map
General Information
| Postal Area | City of London |
| Postcode | EC1R 4QJ |
| User Type | Large (more than 25 items of mail per day) |
| Region | London |
| Country | England |
| Local authority | Islington |
| Introduction Date | 1980-01-01 |
| Termination Date | 1991-12-01 |
| IMD 2025 | Decile 4 (most deprived = 1, least = 10) Rank 11,280 of 33,755 English Indices of Deprivation 2025 |
Geographic Information
| Latitude | 51.5252820 |
| Longitude | -0.1101820 |
| Easting | 531200 |
| Northing | 182400 |
| Quality | Postcode terminated prior to Gridlink® initiative, last known ONS postcode grid reference |