EC3M postcode district: City of London and around

EC3M is a postcode district in England, with 79 postcodes in use in 8 sectors. It has postcodes in City of London. Its council is City of London.

Postcodes in use
79
Sectors
8
Council
City of London
Places
City of London

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in EC3M, and which are new since 2020

Map of every postcode in EC3M, by new since 2020 Of the 79 postcodes in EC3M that ONS places, 3 are new since 2020 and 76 were in use before 2020. Places named: Langbourn, Bridge. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A100A1211A3 EC3M 1AA: before 2020EC3M 1AE: before 2020EC3M 1AJ: before 2020EC3M 1BD: before 2020EC3M 1BN: before 2020EC3M 1BU: before 2020EC3M 1DE: before 2020EC3M 1DT: before 2020EC3M 1EB: before 2020EC3M 1EU: before 2020EC3M 1HD: before 2020EC3M 1HS: before 2020EC3M 1JA: before 2020EC3M 1JT: before 2020EC3M 2RY: before 2020EC3M 3AG: before 2020EC3M 3BD: before 2020EC3M 3BE: before 2020EC3M 3BF: before 2020EC3M 3JY: before 2020EC3M 4AB: before 2020EC3M 4AD: before 2020EC3M 4AJ: before 2020EC3M 4AQ: before 2020EC3M 4BE: before 2020EC3M 4BR: before 2020EC3M 4BS: before 2020EC3M 4BY: before 2020EC3M 4ST: before 2020EC3M 5AD: before 2020EC3M 5AF: before 2020EC3M 5AG: before 2020EC3M 5AL: before 2020EC3M 5BN: before 2020EC3M 5BS: before 2020EC3M 5DF: before 2020EC3M 5DJ: before 2020EC3M 5HN: before 2020EC3M 5JB: before 2020EC3M 5JD: before 2020EC3M 5JE: before 2020EC3M 5JF: before 2020EC3M 5JG: before 2020EC3M 5JR: before 2020EC3M 6AL: before 2020EC3M 6BB: before 2020EC3M 6BL: before 2020EC3M 6DE: before 2020EC3M 7AA: before 2020EC3M 7AF: before 2020EC3M 7AN: before 2020EC3M 7AT: before 2020EC3M 7AW: before 2020EC3M 7AY: before 2020EC3M 7DQ: before 2020EC3M 7DX: before 2020EC3M 7HB: before 2020EC3M 7HJ: before 2020EC3M 7HR: before 2020EC3M 7HS: before 2020EC3M 7HT: before 2020EC3M 7JJ: before 2020EC3M 8AA: before 2020EC3M 8AD: before 2020EC3M 8AF: before 2020EC3M 8AN: before 2020EC3M 8AZ: before 2020EC3M 1AG: new since 2020EC3M 4AE: new since 2020EC3M 5HR: new since 2020 LangbournBridge Map of every postcode in EC3M, by new since 2020 Of the 79 postcodes in EC3M that ONS places, 3 are new since 2020 and 76 were in use before 2020. Places named: Langbourn, Bridge. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A3211A100 LangbournBridge
  • New since 2020: 3
  • In use before 2020: 76

Of the 79 postcodes in EC3M that ONS places, 3 are new since 2020 and 76 were in use before 2020.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. New since 2020 means it came into use in January 2020 or later. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode. Names in italics are council wards: we hold no town or village names here.

The middle of its postcodes: latitude 51.5119, longitude -0.0821. Open this area on OpenStreetMap

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; when each came into use: the same directory; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

The 3 newest postcodes

EC3M 5HRJune 2025EC3M 4AEJuly 2024EC3M 1AGAugust 2021

What broadband can you get in EC3M?

Ofcom reports on 59 of the 79 postcodes in EC3M. At 39 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit39 of 59
Postcodes where every home can get superfast39 of 59

Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.

Check one address on Ofcom's checker

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

Is EC3M at risk of flooding?

None of the 79 postcodes in EC3M is on the Environment Agency's list of postcodes with a home or business in an area at risk of flooding from rivers or the sea.

Homes and businesses in an area at risk of flooding from rivers or the sea, as the Environment Agency counts them, added up over the postcodes. It is for the land, not each building, and leaves out surface water, groundwater and sewers. Each postcode page has its own figures and its flood warning areas.

Source: Environment Agency, Risk of Flooding from Rivers and Sea (postcodes in areas at risk), published 6 July 2026, Open Government Licence v3.0. How we use it

Postcodes in EC3M

Pick a sector, then a postcode. A sector is the district plus the next digit.

EC3M 116 postcodesEC3M 21 postcodeEC3M 38 postcodesEC3M 411 postcodesEC3M 516 postcodesEC3M 65 postcodesEC3M 716 postcodesEC3M 86 postcodes
UK postcode format explained

Places in EC3M

Towns and villages with postcodes in EC3M, and how many each has here.

City of London postcodes,79

Who covers EC3M

How many of the district's postcodes in use fall under each council, constituency and police force area.

Councils

What council am I in?

Constituencies

  • Cities of London and Westminster79

Police force areas

  • City of London79

Next to EC3M

EC3A postcode district EC3N postcode district All EC districts City of London postcodes

"Next to" is by number: the districts before and after EC3M in the EC area.

Check a postcode

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