N10 9 postcode sector in the N10 district

N10 9 is a sector of the N10 district: every postcode that starts N10 9. It has 19 postcodes in use, 19 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 N10 9 sector, and which are new since 2020

Map of every postcode in the N10 9 sector, by new since 2020 Of the 19 postcodes in the N10 9 sector that ONS places, 15 are new since 2020 and 4 were in use before 2020. Places named: Muswell Hill. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A504 N10 9EW: new since 2020 Muswell Hill Map of every postcode in the N10 9 sector, by new since 2020 Of the 19 postcodes in the N10 9 sector that ONS places, 15 are new since 2020 and 4 were in use before 2020. Places named: Muswell Hill. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A504 Muswell Hill
  • New since 2020: 15
  • In use before 2020: 4

Of the 19 postcodes in the N10 9 sector that ONS places, 15 are new since 2020 and 4 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. 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

N10 9GXJune 2026N10 9GTAugust 2025N10 9GHAugust 2023N10 9GGApril 2023N10 9GJApril 2023

Postcodes in N10 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.

N10 9AAN10 9BUN10 9BYN10 9ERN10 9EWN10 9FHN10 9FPN10 9FSN10 9FTN10 9FWN10 9FXN10 9FYN10 9FZN10 9GEN10 9GGN10 9GHN10 9GJN10 9GTN10 9GX

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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