PO1 9 postcode sector in the PO1 district

PO1 9 is a sector of the PO1 district: every postcode that starts PO1 9. It has 56 postcodes in use, 42 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 PO1 9 sector, and which are new since 2020

Map of every postcode in the PO1 9 sector, by new since 2020 Of the 56 postcodes in the PO1 9 sector that ONS places, 23 are new since 2020 and 33 were in use before 2020. One group of new postcodes is outlined: 23 new postcodes since 2020. Places named: Charles Dickens. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A3 PO1 9SA: before 2020PO1 9QF: new since 2020 Charles Dickens 23 new postcodes since 2020, outlined: this goes to PO1 9ZF, the newest of them23 new postcodes since 2020 Map of every postcode in the PO1 9 sector, by new since 2020 Of the 56 postcodes in the PO1 9 sector that ONS places, 23 are new since 2020 and 33 were in use before 2020. One group of new postcodes is outlined: 23 new postcodes since 2020. Places named: Charles Dickens. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A3 Charles Dickens 23 new postcodes since 2020, outlined: this goes to PO1 9ZF, the newest of them23 new postcodes since 2020
  • New since 2020: 23
  • In use before 2020: 33
  • Outline: where 5 or more new postcodes since 2020 lie together

Of the 56 postcodes in the PO1 9 sector that ONS places, 23 are new since 2020 and 33 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.

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.

Where the new postcodes lie together

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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Where the facts on this page come from

Licence: Open Government Licence v3.0.

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