SN3 postcode district
SN3 holds 1,310 live postcodes around Swindon, in Swindon.
No listed town or village has its centre in SN3; the nearest are on the neighbouring districts below.
Wards
| Name | Share of postcodes |
|---|---|
| "Badbury Park | 19% |
| Lower Stratton | 19% |
| Parks | 17% |
| Covingham & Nythe | 13% |
| Walcot | 13% |
| Old Town & Lawn | 11% |
| South Marston | 5% |
| Chiseldon & Ridgeway | 2% |
| Upper Stratton | 1% |
| Blunsdon | 1% |
And 1 more.
Westminster constituencies
| Name | Share of postcodes |
|---|---|
| Swindon South | 73% |
| Swindon North | 25% |
| East Wiltshire | 2% |
Deprivation
The middle postcode here sits in decile 7 of the English Index of Multiple Deprivation (2021-Census LSOAs), where decile 1 is the most deprived tenth of neighbourhoods and 10 the least. 35% of this district's postcodes sit in the most deprived three deciles, 40% 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 SN area
SN1 · SN2 · SN4 · SN5 · SN6 · SN7 · SN8 · SN9 · SN10 · SN11 · SN12 · SN13 · SN14 · SN15 · SN16 · SN25 · SN26 · SN38 · SN99
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.