EC3N postcode district: City of London and around

EC3N is a postcode district in England, with 81 postcodes in use in 4 sectors. It has postcodes in City of London and Tower Hamlets. It is split between 2 councils: City of London (74 postcodes) and Tower Hamlets (7).

Postcodes in use
81
Sectors
4
Councils
2 councils
Places
2 places

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

Every postcode in EC3N, by flood risk

Map of every postcode in EC3N, by flood risk Of the 81 postcodes in EC3N that ONS places, 2 have a home or business at high risk, 1 are at very low risk only and 78 are not on the Environment Agency's at-risk list. Places named: Tower, Aldgate. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A3211A100A1202A1203 EC3N 1AB: not on the flood risk listEC3N 1AD: not on the flood risk listEC3N 1AF: not on the flood risk listEC3N 1AH: not on the flood risk listEC3N 1AL: not on the flood risk listEC3N 1AP: not on the flood risk listEC3N 1BD: not on the flood risk listEC3N 1BJ: not on the flood risk listEC3N 1BL: not on the flood risk listEC3N 1DB: not on the flood risk listEC3N 1DD: not on the flood risk listEC3N 1DE: not on the flood risk listEC3N 1DL: not on the flood risk listEC3N 1DR: not on the flood risk listEC3N 1DT: not on the flood risk listEC3N 1DY: not on the flood risk listEC3N 1JJ: not on the flood risk listEC3N 1JL: not on the flood risk listEC3N 1LA: not on the flood risk listEC3N 1LH: not on the flood risk listEC3N 1LQ: not on the flood risk listEC3N 1LS: not on the flood risk listEC3N 1NT: not on the flood risk listEC3N 1NU: not on the flood risk listEC3N 1RE: not on the flood risk listEC3N 2AB: not on the flood risk listEC3N 2AD: not on the flood risk listEC3N 2AE: not on the flood risk listEC3N 2AF: not on the flood risk listEC3N 2AG: not on the flood risk listEC3N 2AP: not on the flood risk listEC3N 2AR: not on the flood risk listEC3N 2AU: not on the flood risk listEC3N 2AW: not on the flood risk listEC3N 2BQ: not on the flood risk listEC3N 2DB: not on the flood risk listEC3N 2EJ: not on the flood risk listEC3N 2ER: not on the flood risk listEC3N 2ES: not on the flood risk listEC3N 2ET: not on the flood risk listEC3N 2EX: not on the flood risk listEC3N 2HS: not on the flood risk listEC3N 2HT: not on the flood risk listEC3N 2JY: not on the flood risk listEC3N 2LR: not on the flood risk listEC3N 2LS: not on the flood risk listEC3N 2LU: not on the flood risk listEC3N 2LY: not on the flood risk listEC3N 2NR: not on the flood risk listEC3N 2NU: not on the flood risk listEC3N 2PU: not on the flood risk listEC3N 2PX: not on the flood risk listEC3N 3AA: not on the flood risk listEC3N 3AE: not on the flood risk listEC3N 3AJ: not on the flood risk listEC3N 3AX: not on the flood risk listEC3N 3DQ: not on the flood risk listEC3N 3DS: not on the flood risk listEC3N 3ED: not on the flood risk listEC3N 3EL: not on the flood risk listEC3N 4AA: not on the flood risk listEC3N 4AF: not on the flood risk listEC3N 4AH: not on the flood risk listEC3N 4AJ: not on the flood risk listEC3N 4AL: not on the flood risk listEC3N 4AT: not on the flood risk listEC3N 4AX: not on the flood risk listEC3N 4DH: not on the flood risk listEC3N 4DJ: not on the flood risk listEC3N 4DR: not on the flood risk listEC3N 4DX: not on the flood risk listEC3N 4EE: not on the flood risk listEC3N 4AB: high flood riskEC3N 4DT: high flood risk TowerAldgate Map of every postcode in EC3N, by flood risk Of the 81 postcodes in EC3N that ONS places, 2 have a home or business at high risk, 1 are at very low risk only and 78 are not on the Environment Agency's at-risk list. Places named: Tower, Aldgate. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A100 TowerAldgate
  • A home or business at high risk: 2
  • At medium risk at worst: 0
  • At low risk at worst: 0
  • At very low risk only: 1
  • Not on the at-risk list: 78

Of the 81 postcodes in EC3N that ONS places, 2 have a home or business at high risk, 1 are at very low risk only and 78 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 51.5117, longitude -0.0766. 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

The postcodes at high risk

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

EC3N 4AB2 at high riskEC3N 4DT1 at high risk

What broadband can you get in EC3N?

Ofcom reports on 70 of the 81 postcodes in EC3N. At 51 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit51 of 70
Postcodes where every home can get superfast51 of 70

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 EC3N at risk of flooding?

3 of the 81 postcodes in EC3N have a home or business in an area at risk of flooding from rivers or the sea, the Environment Agency says. At those, it puts 3 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 3 of 81 postcodes High: 3Very low: 41

High: 3.3% or more a year (1 in 30). Medium: 1% to 3.3% a year. Low: 0.1% to 1% a year. Very low: under 0.1% a year (1 in 1,000). Each band is the chance of flooding in any one year.

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

What do homes sell for in EC3N?

Homes in EC3N sold for a typical £505,000 in the 12 months to August 2026, across 6 sales, down 34.8% on the 12 months before, HM Land Registry's figures show.

£505,000 typical price, the 12 months to August 2026
12 months to August 2025
£775,000
12 months to August 2026
£505,000

▼ down 34.8% on the 12 months before

Flat or maisonette£505,000 6 sales

Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

Postcodes in EC3N

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

EC3N 127 postcodesEC3N 231 postcodesEC3N 38 postcodesEC3N 415 postcodes
UK postcode format explained

Places in EC3N

Towns and villages with postcodes in EC3N, and how many each has here.

City of London postcodes,74Tower Hamlets postcodes,7

Who covers EC3N

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 Westminster74
  • Poplar and Limehouse6
  • Bethnal Green and Stepney1

Police force areas

  • City of London74
  • Metropolitan Police7

Next to EC3N

EC3M postcode district EC3P postcode district All EC districts City of London postcodes

"Next to" is by number: the districts before and after EC3N in the EC area.

Check a postcode

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