S20 4 postcode sector in the S20 district

S20 4 is a sector of the S20 district: every postcode that starts S20 4. It has 82 postcodes in use.

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

Every postcode in the S20 4 sector, and which are new since 2020

Map of every postcode in the S20 4 sector, by new since 2020 Of the 82 postcodes in the S20 4 sector that ONS places, 5 are new since 2020 and 77 were in use before 2020. One group of new postcodes is outlined: 5 new postcodes since 2020. Places named: Mosborough. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A6135 S20 4AA: before 2020S20 4AD: before 2020S20 4GA: before 2020S20 4GB: before 2020S20 4GF: before 2020S20 4GG: before 2020S20 4GJ: before 2020S20 4GN: before 2020S20 4GQ: before 2020S20 4GX: before 2020S20 4HA: before 2020S20 4HB: before 2020S20 4HD: before 2020S20 4HE: before 2020S20 4HF: before 2020S20 4HG: before 2020S20 4HH: before 2020S20 4HL: before 2020S20 4HN: before 2020S20 4HP: before 2020S20 4HQ: before 2020S20 4HR: before 2020S20 4HS: before 2020S20 4HT: before 2020S20 4HU: before 2020S20 4HW: before 2020S20 4HX: before 2020S20 4HY: before 2020S20 4RW: before 2020S20 4RY: before 2020S20 4RZ: before 2020S20 4SA: before 2020S20 4SB: before 2020S20 4SD: before 2020S20 4SE: before 2020S20 4SF: before 2020S20 4SG: before 2020S20 4SH: before 2020S20 4SJ: before 2020S20 4SL: before 2020S20 4SN: before 2020S20 4SP: before 2020S20 4SQ: before 2020S20 4SR: before 2020S20 4SS: before 2020S20 4ST: before 2020S20 4SU: before 2020S20 4SW: before 2020S20 4SX: before 2020S20 4SY: before 2020S20 4SZ: before 2020S20 4TA: before 2020S20 4TB: before 2020S20 4TD: before 2020S20 4TE: before 2020S20 4TF: before 2020S20 4TG: before 2020S20 4TH: before 2020S20 4TJ: before 2020S20 4TL: before 2020S20 4TN: before 2020S20 4TP: before 2020S20 4TQ: before 2020S20 4TR: before 2020S20 4TS: before 2020S20 4TT: before 2020S20 4TU: before 2020S20 4TW: before 2020S20 4TX: before 2020S20 4TY: before 2020S20 4UA: before 2020S20 4UB: before 2020S20 4UD: before 2020S20 4XA: before 2020S20 4XB: before 2020S20 4XD: before 2020S20 4XE: before 2020S20 4AB: new since 2020S20 4AE: new since 2020S20 4AF: new since 2020S20 4AG: new since 2020S20 4AH: new since 2020 Mosborough 5 new postcodes since 2020, outlined: this goes to S20 4AG, the newest of them5 new postcodes since 2020 Map of every postcode in the S20 4 sector, by new since 2020 Of the 82 postcodes in the S20 4 sector that ONS places, 5 are new since 2020 and 77 were in use before 2020. One group of new postcodes is outlined: 5 new postcodes since 2020. Places named: Mosborough. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Mosborough 5 new postcodes since 2020, outlined: this goes to S20 4AG, the newest of them5 new postcodes since 2020
  • New since 2020: 5
  • In use before 2020: 77
  • Outline: where 5 or more new postcodes since 2020 lie together

Of the 82 postcodes in the S20 4 sector that ONS places, 5 are new since 2020 and 77 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 160 metres of each other. It is not a boundary, and no boundary is drawn. 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; when each came into use: the same directory; 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 5 newest postcodes

S20 4AGSeptember 2021S20 4AHMay 2021S20 4AEJanuary 2021S20 4AFApril 2020S20 4ABFebruary 2020

Where the new postcodes lie together

  • 5 new postcodes since 2020, outlined on the map. S20 4AG, is the newest of them.

What do homes sell for in S20 4?

Homes in S20 4 sold for a typical £240,750 in the 12 months to August 2026, across 56 sales, up 12% on the 12 months before, HM Land Registry's figures show.

£240,750 typical price, the 12 months to August 2026
£215,000 12 months to August 2025
▲ up 12% on the 12 months before
  • Detached £287,500 17 sales
  • Semi-detached £247,250 17 sales
  • Terraced £180,000 21 sales
  • Flat or maisonette 1 sale, too few to price

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value at the postcodes that start S20 4. 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 S20 4

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.

S20 4AAS20 4ABS20 4ADS20 4AES20 4AFS20 4AGS20 4AHS20 4GAS20 4GBS20 4GFS20 4GGS20 4GJS20 4GNS20 4GQS20 4GXS20 4HAS20 4HBS20 4HDS20 4HES20 4HFS20 4HGS20 4HHS20 4HLS20 4HNS20 4HPS20 4HQS20 4HRS20 4HSS20 4HTS20 4HUS20 4HWS20 4HXS20 4HYS20 4RWS20 4RYS20 4RZS20 4SAS20 4SBS20 4SDS20 4SES20 4SFS20 4SGS20 4SHS20 4SJS20 4SLS20 4SNS20 4SPS20 4SQS20 4SRS20 4SSS20 4STS20 4SUS20 4SWS20 4SXS20 4SYS20 4SZS20 4TAS20 4TBS20 4TDS20 4TES20 4TFS20 4TGS20 4THS20 4TJS20 4TLS20 4TNS20 4TPS20 4TQS20 4TRS20 4TSS20 4TTS20 4TUS20 4TWS20 4TXS20 4TYS20 4UAS20 4UBS20 4UDS20 4XAS20 4XBS20 4XDS20 4XE

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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