TW3 postcode district
TW3 holds 787 live postcodes around Hounslow, in Hounslow, Richmond upon Thames.
Towns and villages with their centre in TW3
| # | Place | County / council | Population |
|---|---|---|---|
| 1 | Hounslow | Greater London | 66,292 |
Wards
| Name | Share of postcodes |
|---|---|
| Hounslow Central | 29% |
| Hounslow Heath | 16% |
| Hounslow East | 12% |
| Hounslow South | 12% |
| Heston East | 11% |
| Hounslow West | 10% |
| Heston Central | 6% |
| Whitton | 3% |
| Heathfield | 1% |
Westminster constituencies
| Name | Share of postcodes |
|---|---|
| Brentford and Isleworth | 83% |
| Feltham and Heston | 16% |
| Twickenham | 1% |
Deprivation
The middle postcode here sits in decile 3 of the English Index of Multiple Deprivation (2021-Census LSOAs), where decile 1 is the most deprived tenth of neighbourhoods and 10 the least. 53% of this district's postcodes sit in the most deprived three deciles, 2% in the least deprived three.
Deprivation deciles describe the LSOA neighbourhood each postcode sits in, weighted by postcodes rather than by people, because the postcode file carries no population. A district where the deprived neighbourhoods are densely populated will read better here than it would per resident.
Neighbouring districts in the TW area
TW1 · TW2 · TW4 · TW5 · TW6 · TW7 · TW8 · TW9 · TW10 · TW11 · TW12 · TW13 · TW14 · TW15 · TW16 · TW17 · TW18 · TW19 · TW20
Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Source: Office for National Statistics licensed under the Open Government Licence v3.0. Postcode data is the ONS Postcode Directory, August 2026 edition; counts are live postcodes with a usable location. Northern Ireland postcodes carry a separate licence and are not included; Scotland joins when the site's Scottish coverage does.