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: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in TW6, and which are new since 2020

Map of every postcode in TW6, by new since 2020 Of the 124 postcodes in TW6 that ONS places, 2 are new since 2020 and 122 were in use before 2020. Places named: Stanwell. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A315A312A314A3006 TW6 1AA: before 2020TW6 1AH: before 2020TW6 1AP: before 2020TW6 1AU: before 2020TW6 1BB: before 2020TW6 1BP: before 2020TW6 1DB: before 2020TW6 1DJ: before 2020TW6 1EL: before 2020TW6 1NP: before 2020TW6 1PJ: before 2020TW6 1PY: before 2020TW6 1PZ: before 2020TW6 1QB: before 2020TW6 1QT: before 2020TW6 1RA: before 2020TW6 1RU: before 2020TW6 1SL: before 2020TW6 2AA: before 2020TW6 2AB: before 2020TW6 2AH: before 2020TW6 2AL: before 2020TW6 2AP: before 2020TW6 2AQ: before 2020TW6 2AS: before 2020TW6 2AU: before 2020TW6 2BJ: before 2020TW6 2DL: before 2020TW6 2DN: before 2020TW6 2DT: before 2020TW6 2EB: before 2020TW6 2FB: before 2020TW6 2FF: before 2020TW6 2FG: before 2020TW6 2FH: before 2020TW6 2FL: before 2020TW6 2GA: before 2020TW6 2GB: before 2020TW6 2GD: before 2020TW6 2GE: before 2020TW6 2GX: before 2020TW6 2LA: before 2020TW6 2PL: before 2020TW6 2PX: before 2020TW6 2QA: before 2020TW6 2QD: before 2020TW6 2QE: before 2020TW6 2RF: before 2020TW6 2RG: before 2020TW6 2RL: before 2020TW6 2RN: before 2020TW6 2RP: before 2020TW6 2RS: before 2020TW6 2RT: before 2020TW6 2SD: before 2020TW6 2SQ: before 2020TW6 2SU: before 2020TW6 2UA: before 2020TW6 3AE: before 2020TW6 3AF: before 2020TW6 3AQ: before 2020TW6 3FB: before 2020TW6 3FD: before 2020TW6 3FE: before 2020TW6 3FH: before 2020TW6 3FJ: before 2020TW6 3JF: before 2020TW6 3JJ: before 2020TW6 3LW: before 2020TW6 3PF: before 2020TW6 3PR: before 2020TW6 3QY: before 2020TW6 3RE: before 2020TW6 3RG: before 2020TW6 3RN: before 2020TW6 3RT: before 2020TW6 3SF: before 2020TW6 3SH: before 2020TW6 3SJ: before 2020TW6 3SL: before 2020TW6 3SY: before 2020TW6 3UA: before 2020TW6 3XE: before 2020TW6 3XL: before 2020TW6 3YH: before 2020TW6 1EF: new since 2020TW6 2JD: new since 2020 Stanwell Map of every postcode in TW6, by new since 2020 Of the 124 postcodes in TW6 that ONS places, 2 are new since 2020 and 122 were in use before 2020. Places named: Stanwell. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A315A3005A314 Stanwell
  • New since 2020: 2
  • In use before 2020: 122

Of the 124 postcodes in TW6 that ONS places, 2 are new since 2020 and 122 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.

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

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 2 newest postcodes

TW6 1EFJuly 2025TW6 2JDOctober 2022

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, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

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, Risk of Flooding from Rivers and Sea (postcodes in areas at risk), published 6 July 2026, Open Government Licence v3.0. How we use it

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.

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