SO19 postcode district

Postcodes and sectors

1,194 of the district's 1,430 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 50.90193, -1.35498, which locates the district, not a building.

Companies registered in SO19

Companies House lists 1,834 companies with a registered office in SO19; 178 of them at addresses 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 SO19

• South East
• Southampton
• City of Southampton
• Eastleigh
• Hampshire
• Netley Hill

Roads filed under SO19

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.

• Acacia Road
• Adela Verne Close
• Adey Close
• Ailsa Lane
• Alandale Road
• Alfriston Gardens
• Ambleside Gardens
• Anson Drive
• Applewood Gardens
• Archery Gardens
• Archery Grove
• Archery Road
• Arrow Close
• Ashburnham Close
• Ashby Road
• Ash Close
• Ashley Crescent
• Ashton Walk
• Ashurst Close
• Athelstan Road
• Bacon Close
• Balfour Road
• Banbury Avenue
• Barnes Road
• Barnfield Close
• Barnfield Court
• Barnfield Road
• Barnfield Way
• Barrow Down Gardens
• Barry Road
• Bath Close
• Bath Road
• Baxter Road
• Bay Close
• Bay Road
• Bay Trees
• Bedford Avenue
• Belton Road
• Bevan Close
• Birch Lawn Close
• Birch Wood
• Bishops Crescent
• Bishops Road
• Bisley Court
• Bitterne Crescent
• Bitterne Way
• Blackthorn Close
• Blackthorn Road
• Blake Gardens
• Bloomsbury Walk
• Boswell Close
• Botany Bay Road
• Botley Gardens
• Botley Road
• Bower Close
• Bracklesham Close
• Braeside Close
• Braeside Crescent
• Braeside Road
• Bramley Crescent

Check an address in SO19

Check an address in SO19

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=SO19" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about SO19

What does an SO19 postcode tell you?

That the address lies in the SO19 district of the SO (Southampton) postcode area, and the place OS Open Names most often lists first for its postcodes is Southampton. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 1,194 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 SO19

• SO182.5 km
• SO143.0 km
• SO173.9 km
• SO304.1 km
• SO155.2 km
• SO315.2 km
• SO456.7 km
• SO166.7 km
• SO507.5 km
• PO159.5 km
• SO539.6 km
• SO5210.5 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids