EC3A postcode district: City of London and around

EC3A is a postcode district in England, with 66 postcodes in use in 8 sectors. It has postcodes in City of London and Islington. It is split between 2 councils: City of London (64 postcodes) and Islington (2).

Postcodes in use
66
Sectors
8
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 EC3A, by flood risk

Map of every postcode in EC3A, by flood risk Of the 66 postcodes in EC3A that ONS places, 66 are not on the Environment Agency's at-risk list. Places named: City of London. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A201 EC3A 1AT: not on the flood risk listEC3A 2AA: not on the flood risk listEC3A 2AD: not on the flood risk listEC3A 2BG: not on the flood risk listEC3A 2BJ: not on the flood risk listEC3A 3AA: not on the flood risk listEC3A 3BP: not on the flood risk listEC3A 3DE: not on the flood risk listEC3A 3DH: not on the flood risk listEC3A 4AA: not on the flood risk listEC3A 4AF: not on the flood risk listEC3A 5AF: not on the flood risk listEC3A 5AG: not on the flood risk listEC3A 5AR: not on the flood risk listEC3A 5AT: not on the flood risk listEC3A 5AW: not on the flood risk listEC3A 5AX: not on the flood risk listEC3A 5AY: not on the flood risk listEC3A 5BU: not on the flood risk listEC3A 5BZ: not on the flood risk listEC3A 5DE: not on the flood risk listEC3A 5DH: not on the flood risk listEC3A 5DQ: not on the flood risk listEC3A 5EB: not on the flood risk listEC3A 5EH: not on the flood risk listEC3A 6AB: not on the flood risk listEC3A 6AE: not on the flood risk listEC3A 6AP: not on the flood risk listEC3A 6AT: not on the flood risk listEC3A 6DE: not on the flood risk listEC3A 6DG: not on the flood risk listEC3A 7AB: not on the flood risk listEC3A 7AG: not on the flood risk listEC3A 7BA: not on the flood risk listEC3A 7BB: not on the flood risk listEC3A 7BD: not on the flood risk listEC3A 7BT: not on the flood risk listEC3A 7BX: not on the flood risk listEC3A 7DB: not on the flood risk listEC3A 7DH: not on the flood risk listEC3A 7JA: not on the flood risk listEC3A 7JB: not on the flood risk listEC3A 7LH: not on the flood risk listEC3A 7LL: not on the flood risk listEC3A 7LN: not on the flood risk listEC3A 7LP: not on the flood risk listEC3A 8AA: not on the flood risk listEC3A 8AE: not on the flood risk listEC3A 8AH: not on the flood risk listEC3A 8AL: not on the flood risk listEC3A 8AQ: not on the flood risk listEC3A 8BE: not on the flood risk listEC3A 8BF: not on the flood risk listEC3A 8BG: not on the flood risk listEC3A 8BN: not on the flood risk listEC3A 8BY: not on the flood risk listEC3A 8EE: not on the flood risk listEC3A 8FR: not on the flood risk list City of London Map of every postcode in EC3A, by flood risk Of the 66 postcodes in EC3A that ONS places, 66 are not on the Environment Agency's at-risk list. Places named: City of London. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A10A201A5201 City of London
  • 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: 66

Of the 66 postcodes in EC3A that ONS places, 66 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.

The middle of its postcodes: latitude 51.5148, longitude -0.0803. 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 EC3A?

Ofcom reports on 51 of the 66 postcodes in EC3A. At 41 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit41 of 51
Postcodes where every home can get superfast41 of 51

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 EC3A at risk of flooding?

None of the 66 postcodes in EC3A 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

What do homes sell for in EC3A?

HM Land Registry records 2 sales of homes in EC3A in the 12 months to August 2026: too few to give a typical price.

  • Flat or maisonette 2 sales, too few to price

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 EC3A

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

EC3A 11 postcodeEC3A 24 postcodesEC3A 34 postcodesEC3A 42 postcodesEC3A 514 postcodesEC3A 66 postcodesEC3A 720 postcodesEC3A 815 postcodes
UK postcode format explained

Places in EC3A

Towns and villages with postcodes in EC3A, and how many each has here.

City of London postcodes,64Islington postcodes,2

Who covers EC3A

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 Westminster64
  • Islington South and Finsbury2

Police force areas

  • City of London64
  • Metropolitan Police2

Next to EC3A

EC2Y postcode district EC3M postcode district All EC districts City of London postcodes

"Next to" is by number: the districts before and after EC3A in the EC area.

Check a postcode

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