LL57 9 postcode sector in the LL57 district

LL57 9 is a sector of the LL57 district: every postcode that starts LL57 9. It has 10 postcodes in use, 10 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 LL57 9 sector, and which are new since 2020

Map of every postcode in the LL57 9 sector, by new since 2020 Of the 10 postcodes in the LL57 9 sector that ONS places, 8 are new since 2020 and 2 were in use before 2020. Places named: Bangor. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A4087 LL57 9EE: new since 2020 Bangor Map of every postcode in the LL57 9 sector, by new since 2020 Of the 10 postcodes in the LL57 9 sector that ONS places, 8 are new since 2020 and 2 were in use before 2020. Places named: Bangor. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A4087 Bangor
  • New since 2020: 8
  • In use before 2020: 2

Of the 10 postcodes in the LL57 9 sector that ONS places, 8 are new since 2020 and 2 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. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

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

Postcodes in LL57 9

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.

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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