BB9 4 postcode sector in the BB9 district

BB9 4 is a sector of the BB9 district: every postcode that starts BB9 4. It has 82 postcodes in use, 62 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 BB9 4 sector, and which are new since 2020

Map of every postcode in the BB9 4 sector, by new since 2020 Of the 82 postcodes in the BB9 4 sector that ONS places, 10 are new since 2020 and 72 were in use before 2020. One group of new postcodes is outlined: 10 new postcodes since 2020. Places named: Nelson. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. M65A682A56 BB9 4SA: before 2020BB9 4WA: before 2020BB9 4EQ: new since 2020 Nelson 10 new postcodes since 2020, outlined: this goes to BB9 4FT, the newest of them10 new postcodes since 2020 Map of every postcode in the BB9 4 sector, by new since 2020 Of the 82 postcodes in the BB9 4 sector that ONS places, 10 are new since 2020 and 72 were in use before 2020. One group of new postcodes is outlined: 10 new postcodes since 2020. Places named: Bradley, Whitefield & Walverden. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. BradleyWhitefield & Walverden 10 new postcodes since 2020, outlined: this goes to BB9 4FT, the newest of them10 new postcodes since 2020
  • New since 2020: 10
  • In use before 2020: 72
  • Outline: where 5 or more new postcodes since 2020 lie together

Of the 82 postcodes in the BB9 4 sector that ONS places, 10 are new since 2020 and 72 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 600 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.

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

BB9 4FTMay 2026BB9 4JGMarch 2026BB9 4JWMarch 2026BB9 4JRAugust 2025BB9 4JSAugust 2025

Where the new postcodes lie together

  • 10 new postcodes since 2020, outlined on the map. BB9 4FT, is the newest of them.

Postcodes in BB9 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.

BB9 4BDBB9 4DABB9 4EQBB9 4FTBB9 4FWBB9 4FXBB9 4GABB9 4GFBB9 4GQBB9 4GSBB9 4GWBB9 4HPBB9 4HSBB9 4JDBB9 4JGBB9 4JRBB9 4JSBB9 4JWBB9 4SABB9 4SBBB9 4SDBB9 4SEBB9 4SFBB9 4SGBB9 4SHBB9 4SJBB9 4SLBB9 4SNBB9 4SPBB9 4SQBB9 4SRBB9 4SSBB9 4STBB9 4SUBB9 4SWBB9 4SXBB9 4SYBB9 4SZBB9 4TABB9 4TBBB9 4TDBB9 4TEBB9 4TFBB9 4TGBB9 4THBB9 4TJBB9 4TLBB9 4TNBB9 4TPBB9 4TQBB9 4TRBB9 4TSBB9 4TTBB9 4TUBB9 4TWBB9 4TXBB9 4TYBB9 4TZBB9 4UABB9 4UBBB9 4UDBB9 4UEBB9 4UFBB9 4UGBB9 4UHBB9 4UJBB9 4ULBB9 4UNBB9 4UPBB9 4UQBB9 4URBB9 4USBB9 4UTBB9 4UUBB9 4UWBB9 4UXBB9 4UYBB9 4UZBB9 4WABB9 4WBBB9 4WDBB9 4ZZ

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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