S1 1 postcode sector in the S1 district

S1 1 is a sector of the S1 district: every postcode that starts S1 1. It has 31 postcodes in use, 27 of them large-user postcodes. A large-user postcode is one Royal Mail gives to a single address that gets a lot of mail.

Not sure what a sector is? UK postcode format explained.

Every postcode in the S1 1 sector, by flood risk

Map of every postcode in the S1 1 sector, by flood risk Of the 31 postcodes in the S1 1 sector that ONS places, 1 are at low risk at worst and 30 are not on the Environment Agency's at-risk list. Places named: City. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A61 S1 1AA: not on the flood risk listS1 1AD: not on the flood risk listS1 1AE: not on the flood risk listS1 1DA: not on the flood risk listS1 1DL: not on the flood risk listS1 1EQ: not on the flood risk listS1 1GN: not on the flood risk listS1 1HA: not on the flood risk listS1 1HG: not on the flood risk listS1 1LF: not on the flood risk listS1 1LZ: not on the flood risk listS1 1QF: not on the flood risk listS1 1RQ: not on the flood risk listS1 1UL: not on the flood risk listS1 1WB: not on the flood risk listS1 1WR: not on the flood risk listS1 1XN: not on the flood risk listS1 1XZ: not on the flood risk listS1 1YG: not on the flood risk listS1 1DJ: low flood risk at worst City Map of every postcode in the S1 1 sector, by flood risk Of the 31 postcodes in the S1 1 sector that ONS places, 1 are at low risk at worst and 30 are not on the Environment Agency's at-risk list. Places named: City. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A61 City
  • A home or business at high risk: 0
  • At medium risk at worst: 0
  • At low risk at worst: 1
  • At very low risk only: 0
  • Not on the at-risk list: 30

Of the 31 postcodes in the S1 1 sector that ONS places, 1 are at low risk at worst and 30 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.

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 do homes sell for in S1 1?

HM Land Registry records one sale of homes in S1 1 in the 12 months to August 2026: too few to give a typical price.

  • Flat or maisonette 1 sale, too few to price

Standard sales of homes at market value at the postcodes that start S1 1. A typical price is the median, the middle sale, given from 5 sales or more.

How we work this out: house prices by postcode

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 S1 1

Pick a postcode to see its council and MP, broadband, flood risk, what homes sell for, council tax, the nearest schools and stations, and crime around it.

S1 1AAS1 1ADS1 1AES1 1AUS1 1DAS1 1DJS1 1DLS1 1EQS1 1GES1 1GNS1 1GSS1 1HAS1 1HFS1 1HGS1 1HPS1 1LFS1 1LZS1 1QFS1 1QTS1 1RQS1 1ULS1 1UYS1 1WAS1 1WBS1 1WRS1 1XHS1 1XLS1 1XNS1 1XZS1 1YDS1 1YG

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed. See all our data sources

What council am I in? The council, borough or local authority for a postcode, and the county council where there is one. What ward am I in? The ward for a postcode, with its council, constituency and parish.

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