TW6 postcode district: Hillingdon and around

TW6 is a postcode district in England, with 124 postcodes in use in 3 sectors. It has postcodes in Hillingdon and Hounslow. It is split between 3 councils: Hillingdon (120 postcodes), Hounslow (3) and Spelthorne (1). 1 of its 124 postcodes is in Surrey. ONS lists no county for the other 123.

Postcodes in use
124
Sectors
3
Councils
3 councils
Places
2 places

Source: ONS Postcode Directory, August 2026, loaded 20 October 2026.

Every postcode in TW6, by gigabit broadband

Map of every postcode in TW6, by gigabit broadband Of the 124 postcodes in TW6 that ONS places, 75 have no home or business that can get gigabit and 49 have no Ofcom figure. 4 groups of postcodes without gigabit are outlined: 9 postcodes without gigabit; 6 postcodes without gigabit; 6 postcodes without gigabit; 5 postcodes without gigabit. Places named: Stanwell. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A315A312A314A3006 TW6 1AU: no Ofcom figureTW6 1BB: no Ofcom figureTW6 1DB: no Ofcom figureTW6 1EL: no Ofcom figureTW6 1NP: no Ofcom figureTW6 1PJ: no Ofcom figureTW6 1PZ: no Ofcom figureTW6 1QB: no Ofcom figureTW6 1RA: no Ofcom figureTW6 1SL: no Ofcom figureTW6 2AH: no Ofcom figureTW6 2FL: no Ofcom figureTW6 2GB: no Ofcom figureTW6 2SD: no Ofcom figureTW6 3FH: no Ofcom figureTW6 3FJ: no Ofcom figureTW6 3QY: no Ofcom figureTW6 3RN: no Ofcom figureTW6 3SF: no Ofcom figureTW6 3XE: no Ofcom figureTW6 1AH: no gigabitTW6 1AP: no gigabitTW6 1BP: no gigabitTW6 1PY: no gigabitTW6 1QT: no gigabitTW6 1RU: no gigabitTW6 2AA: no gigabitTW6 2AB: no gigabitTW6 2AL: no gigabitTW6 2AP: no gigabitTW6 2AQ: no gigabitTW6 2AU: no gigabitTW6 2BJ: no gigabitTW6 2DL: no gigabitTW6 2DN: no gigabitTW6 2DT: no gigabitTW6 2EB: no gigabitTW6 2FF: no gigabitTW6 2FG: no gigabitTW6 2FH: no gigabitTW6 2GA: no gigabitTW6 2GD: no gigabitTW6 2GE: no gigabitTW6 2GX: no gigabitTW6 2JD: no gigabitTW6 2LA: no gigabitTW6 2PL: no gigabitTW6 2PX: no gigabitTW6 2QA: no gigabitTW6 2QD: no gigabitTW6 2QE: no gigabitTW6 2RF: no gigabitTW6 2RG: no gigabitTW6 2RL: no gigabitTW6 2RN: no gigabitTW6 2RP: no gigabitTW6 2RS: no gigabitTW6 2RT: no gigabitTW6 2SQ: no gigabitTW6 2SU: no gigabitTW6 2UA: no gigabitTW6 3AE: no gigabitTW6 3AF: no gigabitTW6 3FD: no gigabitTW6 3FE: no gigabitTW6 3JF: no gigabitTW6 3JJ: no gigabitTW6 3LW: no gigabitTW6 3PF: no gigabitTW6 3PR: no gigabitTW6 3RE: no gigabitTW6 3RG: no gigabitTW6 3RT: no gigabitTW6 3SH: no gigabitTW6 3SJ: no gigabitTW6 3SL: no gigabitTW6 3SY: no gigabitTW6 3UA: no gigabitTW6 3XL: no gigabitTW6 3YH: no gigabitTW6 1QG: no gigabitTW6 2QF: no gigabitTW6 1EW: no gigabitTW6 2SN: no gigabitTW6 2GW: no gigabitTW6 3FF: no gigabitTW6 3XA: no gigabit Stanwell 9 postcodes without gigabit, outlined: this goes to TW6 2SU, the one nearest the middle of them9 postcodes without gigabit6 postcodes without gigabit, outlined: this goes to TW6 1QT, the one nearest the middle of them6 postcodes without gigabit5 postcodes without gigabit, outlined: this goes to TW6 3SJ, the one nearest the middle of them5 postcodes without gigabit Map of every postcode in TW6, by gigabit broadband Of the 124 postcodes in TW6 that ONS places, 75 have no home or business that can get gigabit and 49 have no Ofcom figure. 4 groups of postcodes without gigabit are outlined: 9 postcodes without gigabit; 6 postcodes without gigabit; 6 postcodes without gigabit; 5 postcodes without gigabit. Places named: Stanwell. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A3005A312A437 Stanwell 9 postcodes without gigabit, outlined: this goes to TW6 2SU, the one nearest the middle of them9 postcodes without gigabit6 postcodes without gigabit, outlined: this goes to TW6 2RF, the one nearest the middle of them6 postcodes without gigabit5 postcodes without gigabit, outlined: this goes to TW6 3SJ, the one nearest the middle of them5 postcodes without gigabit
  • No home or business can get gigabit: 75
  • Some can get gigabit: 0
  • Every home and business can get gigabit: 0
  • Ofcom gives no figure: 49
  • Outline: where 5 or more postcodes without gigabit lie together

Of the 124 postcodes in TW6 that ONS places, 75 have no home or business that can get gigabit and 49 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. A dashed outline shows where 5 or more lie within 200 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.

The middle of its postcodes: latitude 51.4708, longitude -0.4487. Open this area on OpenStreetMap

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.

Postcodes without gigabit

75 postcodes here have no gigabit. These are the 12 first in postcode order.

TW6 1AHTW6 1APTW6 1BPTW6 1EWTW6 1PYTW6 1QGTW6 1QTTW6 1RUTW6 1SDTW6 1SXTW6 2AATW6 2AB

Where the postcodes without gigabit lie together

  • 9 postcodes without gigabit, outlined on the map. TW6 2SU, is the one nearest the middle of them.
  • 6 postcodes without gigabit, outlined on the map. TW6 1QT, is the one nearest the middle of them.
  • 6 postcodes without gigabit, outlined on the map. TW6 2RF, is the one nearest the middle of them.
  • 5 postcodes without gigabit, outlined on the map. TW6 3SJ, is the one nearest the middle of them.

What broadband can you get in TW6?

Ofcom reports on 75 of the 124 postcodes in TW6. At none of them every home and business can get gigabit broadband, and at 3 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit0 of 75
Postcodes where every home can get superfast0 of 75
Postcodes where some cannot get decent broadband3 of 75

Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.

Check one address on Ofcom's checker

Source: Ofcom Connected Nations, Connected Nations, Spring 2026, data for January 2026.

Is TW6 at risk of flooding?

None of the 124 postcodes in TW6 is on the Environment Agency's list of postcodes with a home or business in an area at risk of flooding from rivers or the sea.

Homes and businesses in an area at risk of flooding from rivers or the sea, as the Environment Agency counts them, added up over the postcodes. It is for the land, not each building, and leaves out surface water, groundwater and sewers. Each postcode page has its own figures and its flood warning areas.

Source: Environment Agency flood risk, published 6 July 2026.

Postcodes in TW6

Pick a sector, then a postcode. A sector is the district plus the next digit.

TW6 136 postcodesTW6 254 postcodesTW6 334 postcodes
UK postcode format explained

Places in TW6

Towns and villages with postcodes in TW6, and how many each has here.

Hillingdon postcodes,120Hounslow postcodes,3

Who covers TW6

How many of the district's postcodes in use fall under each council, constituency and police force area.

Councils

What council am I in?

Constituencies

  • Hayes and Harlington120
  • Brentford and Isleworth3
  • Spelthorne1

Police force areas

  • Metropolitan Police123
  • Surrey1

Next to TW6

TW5 postcode district TW7 postcode district All TW districts Hillingdon postcodes

"Next to" is by number: the districts before and after TW6 in the TW area.

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.

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