EC3M postcode district
EC3M holds 79 live postcodes around City of London, in City of London.
No listed town or village has its centre in EC3M; the nearest are on the neighbouring districts below.
Wards
| Name | Share of postcodes |
|---|---|
| Langbourn | 29% |
| Bridge | 25% |
| Aldgate | 20% |
| Billingsgate | 11% |
| Tower | 9% |
| Lime Street | 5% |
Westminster constituency
Every EC3M postcode falls in Cities of London and Westminster.
Deprivation
The middle postcode here sits in decile 8 of the English Index of Multiple Deprivation (2021-Census LSOAs), where decile 1 is the most deprived tenth of neighbourhoods and 10 the least. 0% of this district's postcodes sit in the most deprived three deciles, 100% in the least deprived three.
Deprivation deciles describe the LSOA neighbourhood each postcode sits in, weighted by postcodes rather than by people, because the postcode file carries no population. A district where the deprived neighbourhoods are densely populated will read better here than it would per resident.
Neighbouring districts in the EC area
EC1A · EC1M · EC1N · EC1P · EC1R · EC1V · EC1Y · EC2A · EC2M · EC2N · EC2P · EC2R · EC2V · EC2Y · EC3A · EC3N · EC3P · EC3R · EC3V · EC4A · EC4M · EC4N · EC4P · EC4R · EC4V · EC4Y
Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Source: Office for National Statistics licensed under the Open Government Licence v3.0. Postcode data is the ONS Postcode Directory, August 2026 edition; counts are live postcodes with a usable location. Northern Ireland postcodes carry a separate licence and are not included; Scotland joins when the site's Scottish coverage does.