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, by flood risk

Map of every postcode in EC3M, by flood risk Of the 79 postcodes in EC3M that ONS places, 79 are not on the Environment Agency's at-risk list. Places named: Langbourn, Bridge. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A100A1211A3 EC3M 1AA: not on the flood risk listEC3M 1AE: not on the flood risk listEC3M 1AG: not on the flood risk listEC3M 1AJ: not on the flood risk listEC3M 1BD: not on the flood risk listEC3M 1BN: not on the flood risk listEC3M 1BU: not on the flood risk listEC3M 1DE: not on the flood risk listEC3M 1DT: not on the flood risk listEC3M 1EB: not on the flood risk listEC3M 1EU: not on the flood risk listEC3M 1HD: not on the flood risk listEC3M 1HS: not on the flood risk listEC3M 1JA: not on the flood risk listEC3M 1JT: not on the flood risk listEC3M 2RY: not on the flood risk listEC3M 3AG: not on the flood risk listEC3M 3BD: not on the flood risk listEC3M 3BE: not on the flood risk listEC3M 3BF: not on the flood risk listEC3M 3JY: not on the flood risk listEC3M 4AB: not on the flood risk listEC3M 4AD: not on the flood risk listEC3M 4AE: not on the flood risk listEC3M 4AJ: not on the flood risk listEC3M 4AQ: not on the flood risk listEC3M 4BE: not on the flood risk listEC3M 4BR: not on the flood risk listEC3M 4BS: not on the flood risk listEC3M 4BY: not on the flood risk listEC3M 4ST: not on the flood risk listEC3M 5AD: not on the flood risk listEC3M 5AF: not on the flood risk listEC3M 5AG: not on the flood risk listEC3M 5AL: not on the flood risk listEC3M 5BN: not on the flood risk listEC3M 5BS: not on the flood risk listEC3M 5DF: not on the flood risk listEC3M 5DJ: not on the flood risk listEC3M 5HN: not on the flood risk listEC3M 5HR: not on the flood risk listEC3M 5JB: not on the flood risk listEC3M 5JD: not on the flood risk listEC3M 5JE: not on the flood risk listEC3M 5JF: not on the flood risk listEC3M 5JG: not on the flood risk listEC3M 5JR: not on the flood risk listEC3M 6AL: not on the flood risk listEC3M 6BB: not on the flood risk listEC3M 6BL: not on the flood risk listEC3M 6DE: not on the flood risk listEC3M 7AA: not on the flood risk listEC3M 7AF: not on the flood risk listEC3M 7AN: not on the flood risk listEC3M 7AT: not on the flood risk listEC3M 7AW: not on the flood risk listEC3M 7AY: not on the flood risk listEC3M 7DQ: not on the flood risk listEC3M 7DX: not on the flood risk listEC3M 7HB: not on the flood risk listEC3M 7HJ: not on the flood risk listEC3M 7HR: not on the flood risk listEC3M 7HS: not on the flood risk listEC3M 7HT: not on the flood risk listEC3M 7JJ: not on the flood risk listEC3M 8AA: not on the flood risk listEC3M 8AD: not on the flood risk listEC3M 8AF: not on the flood risk listEC3M 8AN: not on the flood risk listEC3M 8AZ: not on the flood risk list LangbournBridge Map of every postcode in EC3M, by flood risk Of the 79 postcodes in EC3M that ONS places, 79 are not on the Environment Agency's at-risk list. Places named: Langbourn, Bridge. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A3211A100 LangbournBridge
  • A home or business at high risk: 0
  • At medium risk at worst: 0
  • At low risk at worst: 0
  • At very low risk only: 0
  • Not on the at-risk list: 79

Of the 79 postcodes in EC3M that ONS places, 79 are not on the Environment Agency's at-risk list.

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. 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; flood risk: Environment Agency, published 6 July 2026; 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

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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