SN4 postcode district

Postcodes and sectors

916 of the district's 1,388 postcodes are live in the ONS Postcode Directory of August 2026. A postcode directory says whether a code is in use, never who is there. The live postcodes centre on 51.53046, -1.83378, which locates the district, not a building.

Companies registered in SN4

Companies House lists 1,863 companies with a registered office in SN4; none of them at an address shared by 25 or more companies (1 October 2026 snapshot). 25 is the count at which the address lookup reports a company cluster.

Places OS Open Names lists for SN4

• South West
• Wiltshire
• Royal Wootton Bassett
• Swindon
• Wroughton
• Wanborough
• Chiseldon
• Broad Hinton
• Broad Town
• Liddington
• Winterbourne Bassett
• Hook
• Hinton Parva
• Tockenham
• Uffcott
• Berwick Bassett
• Badbury
• Draycot Foliat
• Bushton
• Tockenham Wick
• Winterbourne Monkton
• Hodson
• Vastern
• Hook Street

Roads filed under SN4

Named roads first, then numbered ones. A road is filed under one district even where it runs through several, so a street missing here may be listed under a neighbouring district — which is why the address lookup never calls a British street absent. Great Britain has no open register of buildings, so a listed road never means a building on it exists.

• Adams Meadow
• Aisne Road
• Alderney Close
• Anthony Road
• Arran Close
• Artis Avenue
• Ashen Copse Road
• Aspen Close
• Avenell Road
• Badger Close
• Badgers Brook
• Badgers Close
• Bailey's Mead
• Baileys Way
• Bakers Road
• Baldwin Close
• Barcelona Crescent
• Bardsey Close
• Barrett Way
• Barrow Close
• Bath Road
• Beammans Lane
• Beaufort Avenue
• Beaufort Road
• Bedford Street
• Bell Lane
• Bennett Hill Close
• Beranburh Field
• Berkeley Road
• Berricot Lane
• Betjeman Avenue
• Bincknoll Lane
• Blackthorn Close
• Bladen Close
• Blain Place
• Blenheim Road
• Bodyhorse Hill
• Bolingbroke Close
• Boness Road
• Borough Fields
• Bowman Court
• Bradene Close
• Branscombe Drive
• Breach Lane
• Briars Close
• Brimble Hill
• Brinders Close
• Broadacres
• Broadtown Road
• Brooklands
• Brook Meadow
• Brynards Hill
• Burderop Barns
• Burderop Close
• Burycroft
• Buttermilk Crescent
• Butts Road
• Buxton Way
• Byron Avenue
• Callas Hill

Check an address in SN4

Check an address in SN4

The same road list through the API, from the outward code alone:

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=SN4" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about SN4

What does an SN4 postcode tell you?

That the address lies in the SN4 district of the SN (Swindon) postcode area, and the place OS Open Names most often lists first for its postcodes is Royal Wootton Bassett. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 916 live postcodes.

Where the counts come from

• ons-postcode-directory · version 2026-08 · Contains ONS, OS and Royal Mail data © Crown copyright and database right 2026, Open Government Licence v3.0. Northern Ireland postcodes are excluded: their reuse needs a Land & Property Services licence.
• os-open-names · version 2026-11-01 · Contains OS data © Crown copyright and database right 2026, Open Government Licence v3.0.
• uk-companies-house · version 2026-10-01 · Companies House free company data product, Open Government Licence v3.0

What each figure means, and what a district page never says, is set out in Reading a British postcode district page; the glossary defines a postcode district, a postcode area, a postcode directory and a street register.

Data synced on 2026-11-01: the newest version among the datasets listed above.

Districts nearest SN4

• SN384.0 km
• SN54.1 km
• SN14.4 km
• SN26.3 km
• SN37.1 km
• SN257.7 km
• SN269.8 km
• SN612.1 km
• SN1115.3 km
• SN817.2 km
• SN1518.3 km
• SN1618.9 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids