S11 postcode district: Sheffield and around
S11 is a postcode district in England, with 660 postcodes in use in 4 sectors. It has postcodes in Sheffield. It is split between 2 councils: Sheffield (659 postcodes) and Derbyshire Dales (1). 1 of its 660 postcodes is in Derbyshire. ONS lists no county for the other 659.
- Postcodes in use
- 660
- Sectors
- 4
- Councils
- 2 councils
- Places
- Sheffield
Source: ONS Postcode Directory, August 2026, loaded 20 October 2026.
Every postcode in S11, and which are new since 2020
- New since 2020: 16
- In use before 2020: 644
- Outline: where 5 or more new postcodes since 2020 lie together
Of the 660 postcodes in S11 that ONS places, 16 are new since 2020 and 644 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. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and 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 53.3608, longitude -1.5077. Open this area on OpenStreetMap
Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; roads, rivers and built-up areas: Ordnance Survey open maps. 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.
The 5 newest postcodes
3 further out, not drawn
These postcodes lie well apart from the rest, so the map is drawn without them to show the rest closer; they are in every count.
What broadband can you get in S11?
Ofcom reports on 624 of the 660 postcodes in S11. At 495 of them every home and business can get gigabit broadband.
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 checkerSource: Ofcom Connected Nations, Connected Nations, Spring 2026, data for January 2026.
Is S11 at risk of flooding?
97 of the 660 postcodes in S11 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 872 homes and businesses in an area at high or medium risk.
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 flood risk, published 6 July 2026.
What do homes sell for in S11?
Homes in S11 sold for a typical £364,000 in the 12 months to September 2026, across 349 sales, HM Land Registry's figures show. The 12 months before gave £380,000 from 483 sales: not a change larger than chance would explain, given which homes happened to sell.
- Detached £648,000 60 sales
- Semi-detached £427,500 86 sales
- Terraced £336,500 134 sales
- Flat or maisonette £190,000 69 sales
Each bar is that kind's typical price, against the most expensive kind here.
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 October 2026.
Postcodes in S11
Pick a sector, then a postcode. A sector is the district plus the next digit.
UK postcode format explainedPlaces in S11
Towns and villages with postcodes in S11, and how many each has here.
Who covers S11
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
- Sheffield Hallam380
- Sheffield Central279
- Derbyshire Dales1
Police force areas
- South Yorkshire659
- Derbyshire1
Next to S11
"Next to" is by number: the districts before and after S11 in the S area.
Check a postcode
Where the facts on this page come from
- Office for National Statistics: ONS Postcode Directory
- Ofcom Connected Nations
- Environment Agency flood risk
- HM Land Registry Price Paid Data
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.
Licence: Open Government Licence v3.0.
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