NN12 9 postcode sector in the NN12 district

NN12 9 is a sector of the NN12 district: every postcode that starts NN12 9. It has 43 postcodes in use, 12 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 NN12 9 sector, by gigabit broadband

Map of every postcode in the NN12 9 sector, by gigabit broadband Of the 43 postcodes in the NN12 9 sector that ONS places, 1 can all get it and 42 have no Ofcom figure. One postcode lies beyond the edge and is listed under the map. Places named: Towcester. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. NN12 9BT: no Ofcom figureNN12 9SA: no Ofcom figureNN12 9ZZ: gigabit for all Towcester Map of every postcode in the NN12 9 sector, by gigabit broadband Of the 43 postcodes in the NN12 9 sector that ONS places, 1 can all get it and 42 have no Ofcom figure. One postcode lies beyond the edge and is listed under the map. Places named: Towcester. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Towcester
  • No home or business can get gigabit: 0
  • Some can get gigabit: 0
  • Every home and business can get gigabit: 1
  • Ofcom gives no figure: 42

Of the 43 postcodes in the NN12 9 sector that ONS places, 1 can all get it and 42 have no Ofcom figure.

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. 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; Ofcom Connected Nations, Connected Nations, Spring 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.

Further out, not drawn

This postcode lies well apart from the rest, so the map is drawn without it to show the rest closer; it is in every count.

NN12 9TN

Postcodes in NN12 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.

NN12 9BTNN12 9BUNN12 9BXNN12 9BZNN12 9DANN12 9DENN12 9DJNN12 9DPNN12 9DTNN12 9SANN12 9SBNN12 9SDNN12 9SENN12 9SFNN12 9SGNN12 9SHNN12 9SJNN12 9SLNN12 9SNNN12 9SPNN12 9SQNN12 9SRNN12 9SSNN12 9STNN12 9SUNN12 9SWNN12 9SXNN12 9SYNN12 9SZNN12 9TANN12 9TBNN12 9TDNN12 9TENN12 9TFNN12 9TGNN12 9THNN12 9TJNN12 9TLNN12 9TNNN12 9TPNN12 9TQNN12 9TRNN12 9ZZ

Source: ONS Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed.

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.

Check a postcode

Where the facts on this page come from

Contains public sector information licensed under the Open Government Licence v3.0.

Licence: Open Government Licence v3.0.

Something wrong on this page? Report an error and we will check it against the source. All our sources